Academic literature on the topic 'Mudflow'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Mudflow.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Mudflow"

1

Imamova, B. Zh, and A. K. Murzalimova. "Ensuring the protection of Abay region from the threat of mudflows." Bulletin of Shakarim University. Technical Sciences 1, no. 4(12) (December 28, 2023): 53–58. http://dx.doi.org/10.53360/2788-7995-2023-4(12)-8.

Full text
Abstract:
This article describes mudflows, a special category of hydrological threats that pose a threat to human life. Factors and types of mudflows are recorded. Mudflow hazard zones in the Abay region, conditions for mudflows, and natural factors contributing to mudflows are listed. It is characterized by the slope of the channel and the fact that, depending on the presence of channel deposits in it, the mass and speed of movement of the mudflow are subject to changes, and the mudflow is divided by the power of impact on the slope and the volume of the transported mass. An example of mudflows that occurred in Kazakhstan is given. Mudflow protection involves predicting the occurrence of mudflows and conducting special events. Therefore, the need for the construction of protective structures used in flood prevention, agroforestry and reclamation measures for special measures to protect against mudflows and special hydraulic structures is outlined. Such structures are designed to contain protected facilities with high mudflow emissions, to divert mudflow away from facilities, as well as to protect the facility from the impact of mudflow.The need to plan the terrain in the mudflow zone, install drains, divert surface and groundwater, carry out forest reclamation works and safety measures in areas with a risk of mudflows are outlined.
APA, Harvard, Vancouver, ISO, and other styles
2

ADZHIEV, Anatoly, Natalia KONDRATYEVA, and Alan KORTIEV. "Mudflow processes at the all-season tourist and recreational complex “Mamison”." Sustainable Development of Mountain Territories 15, no. 4 (December 30, 2023): 984–94. http://dx.doi.org/10.21177/1998-4502-2023-984-994.

Full text
Abstract:
Introduction. The territory of North Ossetia-Alania has significant potential for recreational development. One of these favorable areas is the high-mountain gorge Mamison, where the Zemegondon and Kozydon rivers merge, which, downstream, form the Mamikhdon River. The government decided to create an all-season tourist and recreational complex “Mamison”. It is planned to create a world-class resort here. Purpose of research. Assessment of mudflow hazard in the area of the “Mamison” and forecast of the dynamics of its development. Materials and methods of research: published scientific and technical information, archival and stock materials, previous reports on engineering surveys on the territory of the “Mamison” were used. The mudflow hazard assessment was carried out using the method of full-scale specialized field survey. Field work to assess mudflow hazard was completed in July 2023. Research results. An assessment of the mudflow hazard at the “Mamison” and the surrounding area revealed: the number of mudflow rivers - 14; morphological type of mudflow sources: incisions, potholes, rocky areas, eroded surfaces; frequency of mudflows - on average once every 3–5 years; mudflow volumes - from 1000 to 50 000 m3 , very rarely (once every 50 years) can exceed 100 000 m3 ; genesis of mudflows - rain, snow-rain and glacial-rain. It has been established that the main influence on mudflow occurrences is exerted by hydrometeorological conditions (snowmelt, precipitation). Based on the results of the study, a mudflow hazard map was created for the territory of the “Mamison” and the adjacent territory, where mudflow channels, mudflow sources, transit zones and mudflow deposits are identified. Conclusion. The territory of the “Mamison” is very dangerous for mudflows. As the recreational development of the region increases, the frequency of mudflows will increase, which will lead to an increase in mudflow hazard. To reduce mudflow activity in the territory under consideration, it is necessary to carry out measures: include in the throughput capacity of hydraulic structures the costs of not only storm runoff, but also mudflows; creation of an effective system for monitoring mudflow conditions.
APA, Harvard, Vancouver, ISO, and other styles
3

Chepurna, Tetiana B., Eduard D. Kuzmenko, and Igor V. Chepurnyj. "Geoinformational prognostic model of mudflows hazard and mudflows risk for the territory of Ukrainian Carpathians." Contemporary Trends in Geoscience 6, no. 1 (June 1, 2017): 57–69. http://dx.doi.org/10.1515/ctg-2017-0005.

Full text
Abstract:
AbstractThe article is devoted to the geological issue of the space-time regional prognostication of mudflow hazard. The methodology of space-time prediction of mudflows hazard by creating GIS predictive model has been developed. Using GIS technologies the relevant and representative complex of significant influence of spatial and temporal factors, adjusted to use in the regional prediction of mudflows hazard, were selected. Geological, geomorphological, technological, climatic, and landscape factors have been selected as spatial mudflow factors. Spatial analysis is based on detection of a regular connection of spatial factor characteristics with spatial distribution of the mudflow sites. The function of a standard complex spatial index (SCSI) of the probability of the mudflow sites distribution has been calculated. The temporal, long-term prediction of the mudflows activity was based on the hypothesis of the regular reiteration of natural processes. Heliophysical, seismic, meteorological, and hydrogeological factors have been selected as time mudflow factors. The function of a complex index of long standing mudflow activity (CIMA) has been calculated. The prognostic geoinformational model of mudflow hazard up to 2020 year, a year of the next peak of the mudflows activity, has been created. Mudflow risks have been counted and carogram of mudflow risk assessment within the limits of administrative-territorial units has been built for 2020 year.
APA, Harvard, Vancouver, ISO, and other styles
4

Vetrova, Natalya, Tatiana Ivanenko, Gennadii Shtofer, Anastasia Gaysarova, and Emran Mennanov. "Ecological and engineering solutions for the reconstruction of anti-mudflow hydraulic structures of the Crimea." E3S Web of Conferences 392 (2023): 02009. http://dx.doi.org/10.1051/e3sconf/202339202009.

Full text
Abstract:
The article studies the territorial features of the formation of a dangerous process - mudflows. The factors of mudflow hazard formation are described, the classification and characteristics of mudflows formed in the Crimea are given. The methods of studying mudflows are considered, the parameters of the mudflow are calculated on the example of the Shelen River, on the basis of which options for the reconstruction of existing mudflow protection structures are proposed. The purpose of the article is to substantiate environmental engineering solutions for the reconstruction of anti-mudflow hydraulic structures in mudflow-prone Crimean river basins. The object of research is the basin of the Shelen River typical for the South-Eastern rural area. The purpose of the research is to substantiate technical solutions for the reconstruction of anti-mudflow structures in the Shelen River basin. Research objectives: to study the conditions for the formation of Crimean mudflows, the history of research and classification; consider existing methods for studying mudflow hazard and calculation methods for determining the parameters of mudflows; to characterize the current state of anti-mudflow structures on the example of the Shelen river basin; justify decisions on the reconstruction of anti-mudflow structures and develop recommendations for their restoration. In the article, on the basis of field studies, hydrological flood flow rates, annual runoff volumes, water flow rates and volumes in years of different water content and average monthly water flow rates using the Shelen River basin as an example, the mudflow parameters are calculated. Anti-mudflow structures were identified and their condition was analyzed. Based on the results of the study, proposals and environmental engineering technical solutions for the reconstruction of existing anti-mudflow structures were developed
APA, Harvard, Vancouver, ISO, and other styles
5

Dergacheva, I., S. Klimov, G. Khamdamova, Qudratjon Raximov, and Tursunoy Apakhujayeva. "Mudflow hazard in the foothill and mountainous regions of Uzbekistan." E3S Web of Conferences 263 (2021): 02019. http://dx.doi.org/10.1051/e3sconf/202126302019.

Full text
Abstract:
The article presents the results of research work on the study of mudflows in the territory of the Republic of Uzbekistan and transboundary territories. The relevance of studies of mudflow phenomena is determined by the intensive development of economic and recreational development of mountain and foothill territories, which in the conditions of the Republic of Uzbekistan are subject to mudflow processes that cause material damage to the objects of the national economy and are often accompanied by human casualties. About a thousand active mudflow channels have been counted in the study area, of which over 270 descend into the Fergana Valley. The most mudflow-prone regions in Uzbekistan are: Namangan - 19% of all registered mudflows, Fergana - 16%, Surkhandarya - 13%, Tashkent - 12%, Kashkadarya - 11% and Samarkand - 9%. In general, the Fergana Valley accounts for 41% of the total number of all registered mudflows. A sharp increase in mudflow activity is observed in April and May. During these months, respectively, 25% and 35% of mudflows descended. As a rule, these are mudflows that came down as a result of a large amount of precipitation. The most mudflow-prone regions in Uzbekistan are: Namangan - 19% of all registered mudflows, Fergana - 16%, Surkhandarya - 13%, Tashkent - 12%, Kashkadarya - 11% and Samarkand - 9%. In general, the Fergana Valley accounts for 41% of the total number of all registered mudflows.
APA, Harvard, Vancouver, ISO, and other styles
6

Chepurna, T. B., E. D. Kuzmenko, I. V. Chepurny, and A. V. Haydeychuk. "GEO-INFORMATION ANALYSIS OF MUDFLOW DANGER AND THREAT ASSESSMENT FOR BRIDGE STRUCTURES WITHIN THE TERRITORY OF TRANSCARPATHIA." Odesa National University Herald. Geography and Geology 28, no. 1(42) (August 10, 2023): 148–61. http://dx.doi.org/10.18524/2303-9914.2023.1(42).282243.

Full text
Abstract:
Problem Statement and Purpose. Mudflows are quite common in the world and in Ukraine in particular. There are three mudflow-prone basins in the Carpathian region of Ukraine. Mudflowing processes threaten infrastructure facilities, in particular highways and bridge crossings. Therefore, it is advisable to monitor and forecast their development. Geoinformation technologies are the main tool that should be used for monitoring and modeling the development of mudflow processes. Damage to bridges, which are primarily exposed to the mudflow process, as a result of mudflows, is caused by phenomena that can be summarized by the terms – impact, abrasion, erosion and vibration. Mudflows also activate erosion phenomena, change the position of the watercourse channel, which leads to damage to bridge structures. The purpose of the study is to assess the risk of mudflows for bridge structures for the territory of eastern Transcarpathia using methods of geoinformation analysis and modeling. Data & Methods. At the present stage, it is common to model and forecast the development of mudflow processes based on taking into account the combined effect of factors. The main factors of the occurrence and development of mudflow phenomena include: tectonic, geological, hydrological conditions, modern exogenous geological processes, soil and plant cover and anthropogenic activity. The process of modeling and forecasting of mudflow hazard includes such basic stages as the selection of a set of factors affecting the development of mudflow, assessment of the level of their influence, calculation of integral indices of sediment activity, creation of a prognostic geo-informational model of mudflow hazard. Results. A spatial prognostic model of mudflow hazard was created for the area that occupies the eastern part of Transcarpathia, the main part of which is located in the mountainous Carpathians. Mudflow processes of rain genesis are mainly observed in the mentioned territories. The spatial model has a constant character, since the spatial factors of the development of mudflow processes are not variable in time and determine the probability of the occurrence of a mudflow phenomenon in space, the period of activation is determined by the influence of time factors for which a time complex indicator should be calculated. Based on the created mudflow hazard model for the research area, the mudflow hazard for bridge crossings was assessed. It was established that a high probability of mudflow hazard is characteristic of 45 bridges. These bridge structures are located in the upper reaches of the Tereblya and Teresva rivers, in the basin of the Black Tysa and White Tysa rivers. For a detailed assessment of engineering and geological threats to bridge structures as a result of the development of mudflows, floods, coastal erosion processes, it is advisable to use a comprehensive approach, using the toolkit of geoinformation systems and a wide range of data sources, in particular, data from remote sensing of the Earth.
APA, Harvard, Vancouver, ISO, and other styles
7

Kupravishvili, Maia. "Specification of the density of the mudflow mixture taking into account the clay-colloidal fraction." Works of Georgian Technical University, no. 4(518) (December 15, 2020): 11–18. http://dx.doi.org/10.36073/1512-0996-2020-4-11-18.

Full text
Abstract:
As a result of laboratory research, was obtained a formula for calculating the density of the mudflow mixture, taking into account the clay-colloidal fraction. The conditions for the formation of mudflows with different particle size distribution are determined. It was found that the formation and decay of the mudflow largely depend on certain ratios between the clay-colloid and rocky components of the mudflow, and not on the density of the mudflows and the percentage (weight) of water, as was presented in early scientific works. It is advisable to use the empirical formula, obtained in the work, to accurately calculate the density of mudflow mixtures for the prediction of mudflow phenomena in order to conduct effective and environmentally sound antimudflow measures.
APA, Harvard, Vancouver, ISO, and other styles
8

Kuznetsov, Evgeniy V., Vladimir S. Matsiy, and Uliana R. Sidaravichute. "Diagnostics of erosion resistance of mudflow hazardous plots on the territory of the Republic of Crimea." Land Reclamation and Hydraulic Engineering 13, no. 4 (2023): 182–201. http://dx.doi.org/10.31774/2712-9357-2023-13-4-182-201.

Full text
Abstract:
Purpose: to make a semi-quantitative assessment of mudflow risk based on empirical data on mudflows and the consequences of their collapse, obtained during the work at the construction and reconstruction of the Lgovskoe – Grushevka – Sudak highway on the territory of the Republic of Crimea and to develop recommendations on state stabilization, based on the assessment results. Materials and methods. The initial data on mudflows are divided into three groups, for each a step-by-step calculation was performed and points were assigned. The criteria by which the assessment has been made: the level of mudflow hazard and the amount of damage, the dependence of the amount of damage on the protective structures’ state. Calculated indicators such as mudflow velocity, flow rate, etc. have also been determined. Each group is assigned a mudflow risk category based on the results of scoring, taking into account their significance. Results. According to the results of the study, the total score for the third group is 15.18, which corresponds to the second category of mudflow risk, which is characterized by a high probability of significant damage. For the first and second groups, the total score is 9.88 and 11.34, respectively, thus, both groups fall within the boundaries of the third category of mudflow hazard. Conclusions. A semi-quantitative assessment of mudflow risk allows identifying potentially dangerous areas, informing on the threat and taking measures for land protection in advance. In order to protect lands from the destructive power of mudflows within the boundaries of the basins of the third group, it is necessary to erect mudflow protection structures, namely: agroforestry-reclamation erosion protection structures, mudflow retention, mudflow passage, mudflow-preventing structures and other engineering protection facilities of the territory.
APA, Harvard, Vancouver, ISO, and other styles
9

Muzychenko, L. E., V. A. Lobkina, and A. A. Muzychenko. "CALCULATION OF PARAMETERS CONTROLLING THE OCCURRENCE OF ANTHROPOGENIC MUDFLOWS ON THE DUMPS OF THE LISTVENNICHNYI QUARRY (SAKHALIN)." Tikhookeanskaya Geologiya 42, no. 1 (2023): 89–99. http://dx.doi.org/10.30911/0207-4028-2023-42-1-89-99.

Full text
Abstract:
The paper considers the intensification of mudflow activity on the dumps of the Listvennichnyi quarry near the city of Yuzhno-Sakhalinsk. Eight cases of anthropogenic mudflows initiated by rainfalls were recorded during field observations conducted from May to November in 2020. First for Sakhalin, mudflows were recorded by video equipment. Parameters of mudflows were measured during their descent. Velocity values were obtained for six mudflows and compared with the values calculated by different methods. Mudflow pressure values were also calculated for all six flows. The derived values are in the range between 0.0044 and 0.0089 MPa. Different methods for the assessment of mudflow effects on objects depending on the pressure value were compared. The amount of precipitation sufficient for triggering anthropogenic mudflows is provided in the paper.
APA, Harvard, Vancouver, ISO, and other styles
10

Tarikhazer, Stara A., Elina J. Karimova, and Iryna Y. Kuchinskaya. "Quantitative assessment of mudflow risk in the Greater Caucasus of Azerbaijan (on the example of the northeastern slope)." Journal of Geology, Geography and Geoecology 31, no. 4 (January 11, 2023): 722–35. http://dx.doi.org/10.15421/112268.

Full text
Abstract:
The recreational and tourist direction of Azerbaijan’s development planned the development of hard-to-reach mountainous areas, where construction of various engineering structures will be carried out. Mudflows are the most destructive geological processes, since mountain geosystems are characterized by favourable conditions for their occurrence – high seismicity (8–9 points), increased moisture (700 mm or more), intense weathering of rocks and accumulation of loose clastic material, etc. Thus, the territory of the northeastern slope of the Greater Caucasus is classified as a mudflow hazardous area. This takes into account the areas of mudflow basins, the intensity of the passage of diverse mudflows, their quantitative characteristics, the conditions of formation, as well as the amount of damage caused to both the infrastructure and the residential complex. The purpose of article. The article considers the results of field ecogeomorphological studies on the northeastern slope of the Greater Caucasus, dedicated to the quantitative assessment of mudflow risk for the period from 1990 to 2020. The research methods. Large-scale topographic maps (Scale 1:100000) were used to assess the degree of mudflow risk on the northeastern slope of the Greater Caucasus in order to obtain morphometric characteristics (including about the incline of the slopes, the length and shape of the slopes, the areas of mudflow cen- ters), as well as materials of interpretation of different-scale and different-time ASI. On the example of the basins of the mudflow-prone rivers Gusarchay and Velvelichaу, ASI M 1: 60000 1996-2020 from the Landsat satellite were used to determine the quantitative indi- cators of the areas of mudflow centers. The results of research: Based on the interpretation of the ASP within the northeastern slope of the Greater Caucasus, according to the degree of danger of mudflow processes (the amount of removed material, the erosive effect of the flow on the valley, taking into account the occurrence of mudflows in tributaries and the basin as a whole, as well as the prevailing types and classes of mudflows, geomorphological conditions of formation, forming and the passage of mudflows and the statistical data on past mudflows), and on the actual and possible damage to the population from mudflows, a mudflow risk map was compiled on a 5-point scale. Conclusions. The reasons for the acceleration of the frequency of passage of destructive mudflows made up of dirt, stones and mud on the northeastern slope of the Greater Caucasus are related to the degradation of high-mountain meadow and moun- tain forest landscapes of the Gudyalchay–Velvelichay, Davachichay–Atachay and other interfluves. Based on the decoding of the ASI from 1996–2020 from the Landsat satellite (M 1:60000) mudflow sources in the basins of the most mudflow-bearing rivers Gusarchay and Velvelichay for the period 1990–2020 were calculated. The research results will make it possible to use the obtained data for the development of a program for the safe and sustainable functioning and development of the hard-to-reach mountainous geosystems of Azerbaijan for recreation and tourism development.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Mudflow"

1

Valdes-Pineda, Rodrigo, Juan B. Valdes, and Pablo Garcia-Chevesich. "Mudflow Modeling in the Copiapo Basin, Chile." UNIV POLITECNICA VALENCIA, 2017. http://hdl.handle.net/10150/624084.

Full text
Abstract:
Extreme precipitation events that occurred between March 24 and March 26 of 2015 in the region of the Atacama Desert (26-29 degrees S) left around 30000 victims, being one of the biggest events over the past 50 years, with total a cost of reconstruction of about 1.5 billion dollars. The mudflows which increased during the flashflood inundated much of the city of Copiapo and Tierra Amarilla. This manuscript aims to model the mudflow of March 2015 in the Rio Copiapo, specifically in the towns of Copiapo and Tierra Amarilla. The modeling process is performed using the Rapid Mass Movement Simulation Model (RAMMS) that allows modeling the dynamics of the mudflow in two dimensions, only using the topographic features of the modeling domain. Calibration of the model was carried out successfully using data from inundation heights captured around the city after the 2015 event. A detailed analysis of the hydrometeorological event is carried out using satellite images obtained from Multi-satellite Precipitation Analysis (TMPA), and pluviometric and hydrographic data available in the Copiapo River basin. The simulation of the flood is reproduced with maps of inundation heights associated with two modeling scenarios. The maximum flood heights are ultimately used for developing risk maps at both sites. According to our results, the RAMMS model is an appropriate tool for modeling mudflow and mapping flood risk to improve hydrological risk management in arid and semiarid basins of Chile.
APA, Harvard, Vancouver, ISO, and other styles
2

Kriyantono, Rachmat. "A critical ethnography of crisis management dealing with a mudflow crisis in Sidoarjo, Indonesia [thesis]." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2011. https://ro.ecu.edu.au/theses/407.

Full text
Abstract:
This PhD research focuses on the crisis management approaches of the company and government during a mudflow crisis in Sidoarjo, Indonesia, and the victims perceived a crisis management including the communication strategy and the programs of public relations conducted by officials from the Lapindo Incorporation (Inc) during efforts to deal with a mudflow crisis in Sidoarjo, Indonesia. The community, ranging from academics through to the victims who lost their homes, told local news media that Lapindo Inc., an oil company, was responsible for the mudflow - through a drilling mistake. On the other hand, when the Sidoarjo survivors of the mudslide and others took Lapindo Inc to court, the Indonesian courts supported experts that said an earthquake had caused the mudflow. The thesis explored ethnographically how the Sidoarjo community reacted to and perceived the communication strategies of officials from Lapindo and the Indonesian government during their efforts to deal with the mudflow crisis. I am interested in how the different actors construed the situation and how those constructions triggered a conflict. The critical approach is also applied based on the evidence presented from the interviews and focus group discussions. If certain actors have more power over others, then this would be reflected in both actions and in how people construe the world they are living in or the events that are happening to them. The paper is not to judge the company‟s responsibility, but to show how the different actors interact and the consequences of those interactions for the victims. The mudflow itself continues and has not been restricted completely. The result of this research is a comprehensive overview of the mudflow crisis itself and the reactions of many involved in it. The thesis gives contribution to the public relations issues and crisis management field. The research found that the crisis management conducted by the company and the government were not effective. Both of them were perceived to not taking an immediate appropriate action. The crisis management failed to ensure reliable and regular information, causing uncertainty. In addition, the crisis management focused more on maintaining the company‟s reputation than on the victims‟ fate. There are conflicts of interest between the company Inc, the government and the victims. This research described how power created knowledge in society by creating a social construction of the reality. The victims have been oppressed by more powerful groups therefore they must struggle against both the government and the company to gain their right.
APA, Harvard, Vancouver, ISO, and other styles
3

Fiorot, Guilherme Henrique. "On unsteady open-channel flows : a contribution to nonstationary sediment transport in runoff flows and to unstable non-Newtonian mudflow studies." Thesis, Rennes, INSA, 2016. http://www.theses.fr/2016ISAR0020/document.

Full text
Abstract:
L'objectif général de cette thèse est l'étude de d'écoulement instationnaire du type coulée de boue dans des canaux naturels. La pluie, source du débit liquide, entraine le ruissellement, responsable du mouillage du sol, de la réduction de sa cohésion et de l'érosion des petites particules de sédiments. A partir de là, le transport de sédiments peut augmenter avec le débit et la pente du sol jusqu'à ce que la concentration en particules atteignent des niveau très importants dans la composition du fluide. Dans une première partie, un banc expérimental a été conçu pour simuler des écoulements ruissellants sur un lit mobile. Un système de mesure a été inventé et implémenté pour mesurer le débit solide instantané et le frottement instantané. Ces systèmes sont utilisés pour étudier l'effet des ondes de surface libre sur le transport de sédiments. Ces données sont employées pour corréler les charactéristiques entr l'écoulement et le transport solide. L'analyse des résultats permet d'observer que pour un écoulement moyen donné, la présence des ondes réduit la quantité moyenne des sédiments transportés. Dans une deuxième partie, la dynamique des écoulements très concentrés est étudiée grâce à un modèle de roll waves de première ordre pour les écoulements laminaires des fluides de type Herschel-Bulkley. Les résultats présentés indiquent que des roll wave sont certainement présentes dans un événement naturel publié et pris comme cas d'étude. Les propriétés des ondes prédites sont estimées avec un écart de 8% par rapport à l'amplitude moyenne mesurée. Finalement, la solution théorique pour le profil de vitesse est modifiée pour prendre en considération l'effet de la porosité. La solution mathématique est comparée à des simulations faites avec FLUENT. Une analyse paramétrique est effectuée, et la comparaison avec le cas d'étude déjà publié est améliorée. En conclusion générale, les phénomènes instationnaires qui peuvent apparaitre lors de l'évolution d'une coulée de boue affectent la dynamique générale du système couplé (écoulement-transport sédimentaire) par rapport au cas permanent et uniforme. Vérifier que ce type de phénomènes peut apparaître lors d'un événement naturel comme les coulées de boue doit être un étape importante d'un projet d'ingénierie, afin de limiter les risques de dommages
This thesis was motivated by the need to better understand time-dependent features related to mudflow evolution on natural sloped channels. Basically, the research is focused on events that are confined in channels formed due to the topography. The rain, source of the liquid discharge, generates the runoff flow which is responsible for wetting the soil surface, promoting reduction of soil cohesiveness and erosion of small particles such as clay and sand. From this point, the sediment transport can increase as small water flows merge and form greater streams. The scenario keeps its evolution until i reaches high concentration of particles in the fluid mixture. In the first part, to study the non-permanent feature of sediment transport, an open-channel experiment was designed for simulating runoff flow over a mobile bed. A measurement system was designed and constructed to instantaneously inspect the solid discharge of particles and the flow friction at the bed. This apparatus is further used to explore the influence of free-surface waves on the sediment transport. Hydraulic properties of flows are qualitatively and quantitatively studied and data are used to correlate characteristics of flow and sediment transport. A set of experimental runs is presented and explored. Analysis of results shows that for fixed flow conditions, waves induce an overall smaller quantity of transported sediment. In a second part, the dynamics of high concentrated flows is addressed and this thesis attempts to appl a first-order roll-wave model for Herschel-Bulkley laminar fluid flow to a registered natural event. Results presented point out that roll waves could have occurred during this already published case-study event. Simulations could predict wave heights within 8% on uncertainty with respect to the mea amplitude of measured waves. Finally a new theoretical solution for the velocity profile is proposed taking into account the porosity of the bed. Results are then compared with numerical simulation performed in FLUENT. A parametric analysis is employed and the case-study is once again evaluated. A: general conclusion, the non-permanent phenomena that can appear during the evolution of a mudflow event affect the overall dynamics of the coupled system (hydraulic-sediment transport) in comparison to the steady and uniform case. Verifying that such phenomena could appear should indeed be an important part in hydraulic engineering projects, especially when dealing with lives, which is the case of mud flows
APA, Harvard, Vancouver, ISO, and other styles
4

Fiorot, Guilherme Henrique [UNESP]. "On unsteady open-channel flows: a contribution to non-stationary sediment transport in runoff flows and to unstable non-Newtonian mudflow studies." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143758.

Full text
Abstract:
Submitted by GUILHERME HENRIQUE FIOROT null (ghfiorot@aluno.feis.unesp.br) on 2016-08-31T16:48:18Z No. of bitstreams: 1 GHFiorot-tese-unesp.pdf: 21279930 bytes, checksum: f08d052fded3d144bcad4b9a9f1c007f (MD5)
Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-09-01T17:08:21Z (GMT) No. of bitstreams: 1 fiorot_gh_dr_ilha.pdf: 21279930 bytes, checksum: f08d052fded3d144bcad4b9a9f1c007f (MD5)
Made available in DSpace on 2016-09-01T17:08:21Z (GMT). No. of bitstreams: 1 fiorot_gh_dr_ilha.pdf: 21279930 bytes, checksum: f08d052fded3d144bcad4b9a9f1c007f (MD5) Previous issue date: 2016-07-01
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Dentro da temática de riscos naturais, mais precisamente no contexto das corridas de lama, esta tese surge da necessidade que existe na literatura em melhor se conhecer as características temporais destes eventos. A chuva, fonte da vazão liquida, conduz aos escoamentos superficiais, responsáveis pela redução da coesão do material sedimentar do solo (areia e argila) e seu consequente transporte. Em locais de topografia íngreme, de montante a jusante, a vazão sólida do escoamento principal pode, eventualmente, evoluir devido às contribuições laterais de pequenos escoamentos, alterando não só as propriedades reológicas do fluido e dinâmicas do escoamento, como se manter até que o transporte sólido atinja elevada concentração na composição do fluido. Na primeira parte desta tese, um experimento de superfície livre foi projetado para reproduzir escoamentos superficiais sobre um fundo móvel, com o objetivo de estudar propriedades não-permanentes do transporte de sedimentos. Um sistema de medição foi projetado e construído com o intuito de medir quase instantaneamente a vazão sólida e suas correlações com as propriedades hidráulicas do escoamento. Este aparato é também utilizado para observar a influência de instabilidades de superfície livre sobre o transporte. Um conjunto de resultados é apresentado e analisado e mostra que a presença de ondas pode, em média, reduzir a quantidade total de sedimentos transportada. Na segunda parte desta tese, a dinâmica de escoamentos com elevada concentração de sedimentos é estudada. Neste trabalho, executa-se a aplicação de um modelo de primeira ordem de roll waves para fluidos de reologia Herschel-Bulkley para simular um evento natural registrado na literatura. Os resultados apresentados mostram que roll waves poderiam, de fato, ser identificadas no evento e que a amplitude média observada poderia ter sido estimada com 8% de incerteza. Assim, um modelo mais complexo para a solução do perfil de velocidade é proposto, adicionando a porosidade do solo ao problema. Resultados do modelo são comparados com simulações numéricas. Uma análise paramétrica é efetuada e o caso de estudo é novamente avaliado. Como conclusão geral do trabalho, a presença de fenômenos não-estacionários durante a evolução escoamento superficial - corrida de lama afeta a dinâmica global do sistema acoplado hidráulica-transporte de sedimentos, quando comparado ao caso permanente e uniforme. Assim, a verificação de que tais fenômenos podem aparecer deve constituir parte de projetos engenharia, especialmente quando estes, em situações de catástrofes, envolvem danos a infraestruturas civis e quase sempre perdas de vidas, como é o caso das corridas de lama.
This thesis was motivated by the need to better understand time-dependent features related to mudflow evolution on natural sloped channels. Basically, the research is focused on events that are confined in channels formed due to the topography. The rain, source of the liquid discharge, generates the runoff flow which is responsible for wetting the soil surface, promoting reduction of soil cohesiveness and erosion of small particles such as clay and sand. From this point, the sediment transport can increase as small water flows merge and form greater streams. The scenario keeps its evolution until it reaches high concentration of particles in the fluid mixture. In the first part, to study the non-permanent feature of sediment transport, an open-channel experiment was designed for simulating runoff flow over a mobile bed. A measurement system was designed and constructed to instantaneously inspect the solid discharge of particles and the flow friction at the bed. This apparatus is further used to explore the influence of free-surface waves on the sediment transport. Hydraulic properties of flows are qualitatively and quantitatively studied and data are used to correlate characteristics of flow and sediment transport. A set of experimental runs is presented and explored. Analysis of results shows that for fixed flow conditions, waves induce an overall smaller quantity of transported sediment. In a second part, the dynamics of high concentrated flows is addressed and this thesis attempts to apply a first-order roll-wave model for Herschel-Bulkley laminar fluid flow to a registered natural event. Results presented point out that roll waves could have occurred during this already published case-study event. Simulations could predict wave heights within 8% on uncertainty with respect to the mean amplitude of measured waves. Finally a new theoretical solution for the velocity profile is proposed taking into account the porosity of the bed. Results are then compared with numerical simulation performed in FLUENT. A parametric analysis is employed and the case-study is once again evaluated. As general conclusion, the non-permanent phenomena that can appear during the evolution of a mudflow event affect the overall dynamics of the coupled system (hydraulic-sediment transport) in comparison to the steady and uniform case. Verifying that such phenomena could appear should indeed be an important part in hydraulic engineering projects, especially when dealing with lives, which is the case of mudflows.
CNPq: 201557/2012-6
APA, Harvard, Vancouver, ISO, and other styles
5

Fiorot, Guilherme Henrique. "On unsteady open-channel flows : a contribution to non-stationary sediment transport in runoff flows and to unstable non-Newtonian mudflow studies /." Ilha Solteira, 2016. http://hdl.handle.net/11449/143758.

Full text
Abstract:
Orientador: Geraldo de Freitas Maciel
Abstract: This thesis was motivated by the need to better understand time-dependent features related to mudflow evolution on natural sloped channels. Basically, the research is focused on events that are confined in channels formed due to the topography. The rain, source of the liquid discharge, generates the runoff flow which is responsible for wetting the soil surface, promoting reduction of soil cohesiveness and erosion of small particles such as clay and sand. From this point, the sediment transport can increase as small water flows merge and form greater streams. The scenario keeps its evolution until it reaches high concentration of particles in the fluid mixture. In the first part, to study the non-permanent feature of sediment transport, an open-channel experiment was designed for simulating runoff flow over a mobile bed. A measurement system was designed and constructed to instantaneously inspect the solid discharge of particles and the flow friction at the bed. This apparatus is further used to explore the influence of free-surface waves on the sediment transport. Hydraulic properties of flows are qualitatively and quantitatively studied and data are used to correlate characteristics of flow and sediment transport. A set of experimental runs is presented and explored. Analysis of results shows that for fixed flow conditions, waves induce an overall smaller quantity of transported sediment. In a second part, the dynamics of high concentrated flows is addressed and this the... (Complete abstract click electronic access below)
Resumo: Dentro da temática de riscos naturais, mais precisamente no contexto das corridas de lama, esta tese surge da necessidade que existe na literatura em melhor se conhecer as características temporais destes eventos. A chuva, fonte da vazão liquida, conduz aos escoamentos superficiais, responsáveis pela redução da coesão do material sedimentar do solo (areia e argila) e seu consequente transporte. Em locais de topografia íngreme, de montante a jusante, a vazão sólida do escoamento principal pode, eventualmente, evoluir devido às contribuições laterais de pequenos escoamentos, alterando não só as propriedades reológicas do fluido e dinâmicas do escoamento, como se manter até que o transporte sólido atinja elevada concentração na composição do fluido. Na primeira parte desta tese, um experimento de superfície livre foi projetado para reproduzir escoamentos superficiais sobre um fundo móvel, com o objetivo de estudar propriedades não-permanentes do transporte de sedimentos. Um sistema de medição foi projetado e construído com o intuito de medir quase instantaneamente a vazão sólida e suas correlações com as propriedades hidráulicas do escoamento. Este aparato é também utilizado para observar a influência de instabilidades de superfície livre sobre o transporte. Um conjunto de resultados é apresentado e analisado e mostra que a presença de ondas pode, em média, reduzir a quantidade total de sedimentos transportada. Na segunda parte desta tese, a dinâmica de escoamentos com eleva... (Resumo completo, clicar acesso eletrônico abaixo)
Doutor
APA, Harvard, Vancouver, ISO, and other styles
6

Melo, Danielle Fernanda Morais de. "Comportamento reológico de solos sujeitos a corridas de lama por liquefação estática." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3145/tde-23122014-153333/.

Full text
Abstract:
Os escorregamentos causados por precipitação intensa ocasionam grandes prejuízos a cada estação chuvosa no sudeste brasileiro. Essa dissertação estudou 2 amostras de solos da região serrana do Rio de Janeiro sob uma nova ótica de análise para escorregamentos. As amostras foram coletadas 4 meses após a ocorrência do megadesastre, onde chuvas com precipitação de 325mm em 48 horas causaram mais de 1500 mortes. Em relatos e vídeos obtidos de movimentos de massa que ocorreram nesse evento foi possível observar que o solo apresentou comportamento de um líquido denso e viscoso, escoando pelas encostas da cidade, ou seja, o solo, encharcado pelas chuvas intensas que ocorreram na região, sofreu liquefação. Esse material viscoso formado pela mistura de solo+água que foi caracterizado através da utilização da reologia. Para isso foram apresentados os conceitos da reologia e dos ensaios reométricos, e as possíveis aplicações para solos e na caracterização de corridas de lama. Foram utilizados três ensaios para caracterizar o solo no estado fluido, que foi o squeeze flow, o reômetro de torque com reometria planetária, e o reômetro de placas paralelas. O principal objetivo para utilização desses ensaios é a praticidade para realização dos ensaios, que tem como características: a rapidez na execução, a coleta de dados é realizada automaticamente, apresentam receptibilidade e a facilidade na execução. Com os resultados obtidos foi possível observar a mudança de comportamento do solo (de um material com comportamento elástico para um material como um fluxo de lama) com a elevação da umidade, para os dois ensaios. Os resultados demonstram que o valor do limite de liquidez calculado através do aparelho de Casagrande é confirmado com esses novos aparelhos, ii sendo que, para esses aparelhos é visível a mudança de comportamento que define o limite de liquidez. Através dos resultados também foi possível determinar que o solo em estado fluido tem seu comportamento regido pelo modelo de Herschel Bulkley. Para tornar os resultados obtidos aplicáveis foi apresentado um capítulo ligando os resultados obtidos da reometria com a possibilidade do solo sofrer liquefação, aliado com os resultados obtidos dos ensaios de caracterização geotécnica. Sendo realizadas análises de estabilidade com os resultados obtidos, correlacionando a inclinação do talude, o nível dágua e a ocorrência da liquefação.
Landslide caused by rainfalls cause major damage each rainy season in southeastern Brazil. This dissertation studied two soil samples from the mountainous region of Rio de Janeiro in a new light analysis for landslides. Samples were collected four months after the occurrence of disaster, when rainfall with intensity of 325mm in 48 hours caused more than 1,500 deaths. In reports and video obtained from mass movements that occurred at this event was observed that the soil responded as a dense liquid, viscous draining the citys landscape. The drenched soil, by heavy rains that occurred in the region, suffered liquefaction. This viscous material formed by mixture of soil and water that was characterized by the use of rheology. In this dissertation was presented the concepts of rheology and rheometric tests for application in soils and characterization of fluid movements. Tree different rheometric tests were performed to characterize the soil in the fluid state, which was the squeeze flow, torque rheometer with planetary geometry and parallel plate rheometer. The main objective of these tests is to use the convenience for the tests, that presents the follow characteristics: the speed of execution, data collection is performed automatically and the testes present repeatability apart from ease of application. With the results we observed the change of soil behavior (of a material with elastic properties for a material that presents the behavior as a mud flow) with increasing humidity for the tests. The results show that the value of the liquidity limit calculated by the Casagrande apparatus is confirmed with these new devices, furthermore with the use of these devices is visible the behavior change that defines the liquid limit. iv Was determined that the Herschel Bulkley model is the one that best represents the behavior of the soil in the fluid state. Was presented a chapter with an application of the results obtained by adding the results of the rheometer with the results of geotechnical characterization tests to determine the possibility of soil suffer liquefaction. To this aim, were performed stability analysis considering the results obtained, correlating the slope inclination, the water level and the occurrence of liquefaction.
APA, Harvard, Vancouver, ISO, and other styles
7

Le, Mignon Gwennou. "Analyse de scénarios de mouvements de versants de type glissements-coulées : application à la région de Barcelonnette (Alpes-de-Haute-Provence, France)." Marne-la-vallée, ENPC, 2004. http://www.theses.fr/2004ENPC0001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Касіянчук, Д. В. "Оцінка екологічних ризиків для природної та техногенної складової екзогенних процесів Карпатського регіону." Thesis, Івано-Франківський національний технічний університет нафти і газу, 2016. http://elar.nung.edu.ua/handle/123456789/45.

Full text
Abstract:
Дисертацію присвячено екологічній проблемі - оцінці еколого-геологічних ризиків розвитку екзогенних геологічних процесів шляхом розподілу на природні та техногенні процесоініціюючі фактори. Встановлено, що прогнозування екзогенних геологічних процесів слід здійснювати з урахуванням роздільного впливу факторів, які сприяють їх розвиткові та активізації. Визначено оптимальний для даної території комплекс природних та техногенних факторів. Величиною, що на кількісному ймовірнісному рівні враховує вплив просторових і часових чинників є інтегральний просторовий показник небезпеки проявів екзогенних геологічних процесів. Виконаний аналіз просторової імовірності небезпеки від проявів екзогенних геологічних процесів для території Івано-Франківської області з побудовою відповідних карт для природної та техногенної складових. На основі сформованих моделей ризиків проведена їх оцінка для окремих територій Карпатського регіону, що надає передумови для створення як просторового так і часового прогнозу.
The thesis highlights the current scientific and applied problems of risk of exogenous geological processes that define the level of environmental safety of territory. The problem of public safety and numerous objects in the areas of dangerous exogenous geological processes is one of the major social and environmental problems of nowadays because of damages caused by these processes. The main kinds of EPG that cause the most negative effects are landslides, mudflows and karst. Theoretical and experimental researches made by the author, allow to summarize their main results. The development and widespread of exogenous geological processes and their impact on environmental safety in Ukraine and the Carpathian region in particular demonstrates the need for a detailed study of these processes in their relationship with the initiating factors. Having conducted the theoretical investigations allow to substantiate the analysis of algorithm groups of factors, based on the definition of the distribution factor characteristics of their unification, informative evaluation factors, the calculation of integrated indicators. In the analysis of natural and man-made component factors of development and activation of landslides, mudflows and karst, as technological conditioned advisable to consider the following: geological (distance to lots violation geological environment (water intakes and quarries), the rate of infestation and localities within an area, geomorphological (distance to the source of vibration, level of vibration, change the angle of inclination, stability factor, distance to roads, railways, distance to the village), hydrogeological (factor of disturbance, the level of ground waters) and landscape (changes in forest cover, distance to the border forest). The spatial analysis is based on communication between groups using factors weighing indicator informativeness factors and integral index. To improve existing methods for prediction of time use the new temporal factor characteristics as moon phase and global temperature. The final result of research is environmental geological risk assessment based on comprehensive integrated spatial indexes revitalization and development of exogenous geological processes, which are quantitative probabilistic take into account the level of total performance factors. The spatial analysis is done by mapping the spatial distribution of the integral index. Evaluation of ecological and geological risks manifestations of hazardous of exogenous geological processes will ensure the safe construction and operation of commercial engineering structures, plan measures to prevent emergency situations effectively protect the population from natural disasters, which in turn will lead to stability ekoheosystem and environmental security of the region and state as a whole.
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Xueyan. "Mechanics of viscoelastic mud under water waves." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36710003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zhang, Xueyan, and 張雪岩. "Mechanics of viscoelastic mud under water waves." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B36710003.

Full text
Abstract:
The Best M.Phil Thesis in the Faculties of Dentistry, Engineering, Medicine and Science (University of Hong Kong), Li Ka Shing Prize,2005-2006
published_or_final_version
abstract
Mechanical Engineering
Master
Master of Philosophy
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Mudflow"

1

Coussot, Philippe. Mudflow rheology and dynamics. Rotterdam: A.A. Balkema, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Medeu, A. R. Selevye i︠a︡vlenii︠a︡ I︠U︡go-Vostochnogo Kazakhstana: Osnovy upravlenii︠a︡ = Mudflow phenomena in the Southeast Kazakhstan. Almaty: Institut Geografii Respubliki Kazakhstan, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kresch, David L. Development and routing of mudflow resulting from hypothetical failure of Spirit Lake debris dam, Washington. Tacoma, Wash: U.S. Dept. of the Interior, U.S. Geological Survey, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Beninger, Peter G., ed. Mudflat Ecology. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99194-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Takahashi, Tamotsu. Debris flow. Totterdam: A.A. Balkema, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Endah, Noor. 3 tahun Lusi dalam gambar. Jakarta]: Deputi Bidang Pengendalian Pencemaran Lingkungan, Asisten Deputi Urusan Pengendalian Pencemaran Lingkungan, Pertambangan Energi dan Migas, Kementerian Negara Lingkungan Hidup, Republik Indonesia, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

1937-, Køang Chih-chøeng, ed. Debris flow hazards and their control in China =: Chung-kuo ni shih liu tsai hai yu̇ fang chih. [Pei-ching]: Science Press, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

D, T͡Sereteli Ė. Geologicheskie uslovii͡a razvitii͡a seleĭ v Gruzii. Tbilisi: "Met͡sniereba", 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Castro, Dimas Malagón. Caracterización del flujo de lodo en la región de Armero, Departamento de Tolima, Colombia: Informe de avance. Bogotá, D.E: República de Colombia, Ministerio de Hacienda y Crédto Público, Instituto Geográfico "Agustín Codazzi", Subdirección Agrológica, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Karyadi. Pengaliran lumpur Sidoarjo ke laut melalui Kali Porong. Malang: Bayumedia Publishing, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Mudflow"

1

Ancey, Christophe. "Mudflow." In Encyclopedia of Natural Hazards, 706. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-1-4020-4399-4_246.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mohsin, Anto. "Coping with Indonesia’s Mudflow Disaster." In The Sociotechnical Constitution of Resilience, 117–45. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8509-3_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Tsereteli, Emil, George Gaprindashvili, and Merab Gaprindashvili. "Natural Disasters (Mudflow, Landslide, Etc.)." In The Physical Geography of Georgia, 55–69. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90753-2_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gaprindashvili, Merab, Emil Tsereteli, George Gaprindashvili, and Otar Kurtsikidze. "Landslide and Mudflow Hazard Assessment in Georgia." In Building Knowledge for Geohazard Assessment and Management in the Caucasus and other Orogenic Regions, 265–79. Dordrecht: Springer Netherlands, 2021. http://dx.doi.org/10.1007/978-94-024-2046-3_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

de A. P. Bacellar, L. "Identification of Mudflow-Prone Areas in Southeastern Brazil." In IAEG/AEG Annual Meeting Proceedings, San Francisco, California, 2018 - Volume 1, 237–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93124-1_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Frenzen, Peter M., Keith S. Hadley, Jon J. Major, Marc H. Weber, Jerry F. Franklin, Jasper H. Hardison, and Sharon M. Stanton. "Geomorphic Change and Vegetation Development on the Muddy River Mudflow Deposit." In Ecological Responses to the 1980 Eruption of Mount St. Helens, 75–91. New York, NY: Springer New York, 2005. http://dx.doi.org/10.1007/0-387-28150-9_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Arai, Kohei, and Achmad Basuki. "A Cellular Automata Based Approach for Prediction of Hot Mudflow Disaster Area." In Computational Science and Its Applications – ICCSA 2010, 87–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12165-4_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Padawangi, Rita. "Muddy Resistance: Community Empowerment in Mudflow Disaster Governance in Porong, Sidoarjo, Indonesia." In Disaster Governance in Urbanising Asia, 61–84. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-649-2_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Everitt, Benjamin L., and Andrew E. Godfrey. "The Deep Creek Mudflow of April 16, 1979, Uintah County, Utah, USA." In Environmental Geotechnics and Problematic Soils and Rocks, 349–55. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003211051-34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kusman, Airlangga Pribadi. "Intellectuals and the Disorganised Social Movements in East Java: The Lapindo Mudflow Case." In The Vortex of Power, 193–236. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0155-1_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Mudflow"

1

Yu, Boyuan, and Vincent H. Chu. "The Front Runner of Roll Waves in Mudflow." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-121514.

Full text
Abstract:
Abstract Mudflow is destructive because of its intrinsic tendency to become unstable, leading to roll waves that can impact structures with great force. We examined the rheological properties of landslide muds, conducted direct numerical simulations of the roll waves in the mudflow, and compared the results obtained from a shallow mudflow model. Simulations are performed to study (i) the temporal growth of periodic disturbances of different wavelengths and Froude numbers and (ii) the spatial development of the wave packet produced by a local disturbance. Most existing studies of roll waves are concerned with periodic roll waves derived from shallow mudflow models, assuming hydrostatic pressure variation and a constant velocity profile over the depth. However, this paper focuses on the spatial development of front-runners. The solution to the hyperbolic equations, derived from the shallow-mudflow approximation, is shock waves of depth and velocity discontinuities at the wavefronts. On the other hand, the direct numerical simulations of the laminar mudflow can show a more realistic mudflow instability that includes wave breaking and entrapment of air during the beaking. Nevertheless, despite the discontinuity, the shallow-mudflow model is still a reasonable approximation in the region away from waves breaking when the wavelength of the front runner becomes sufficiently large.
APA, Harvard, Vancouver, ISO, and other styles
2

Podholov, V. M., and T. B. Chepurna. "Verification of predicted values of mudflow activity in prognostic modeling of mudflow hazard." In 16th International Conference on Geoinformatics - Theoretical and Applied Aspects. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201701893.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zekoreev, Rizuan Khabilovich. "AUTOMATED SYSTEM FOR MONITORING THE RISK OF MUDFLOWS AND FLOODS ON RIVERS." In Themed collection of papers from Foreign international scientific conference «Joint innovation - joint development». by HNRI «National development» in cooperation with PS of UA. February 2024. - Cuangzhou (China). Crossref, 2024. http://dx.doi.org/10.37539/240229.2024.68.81.011.

Full text
Abstract:
The results of the development of an automated system for remote monitoring of mudflow and flood hazards are presented, which makes it possible to transmit via a cellular network to a remote computer the level and flow rate of the river, an image of the state of the mudflow source and other data from which it is possible to determine the moment of origin and the nature of the development of the mudflow. or flood processes.
APA, Harvard, Vancouver, ISO, and other styles
4

"Assessment and Mapping of Mudflow Hazard and Mudflow Risk in the Territory of Almaty." In The Second Eurasian RISK-2020 Conference and Symposium. AIJR Publisher, 2020. http://dx.doi.org/10.21467/abstracts.93.3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yu, Boyuan, and Vincent H. Chu. "Impact of Roll Waves in Mudflow on Hydraulic Structures." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-121513.

Full text
Abstract:
Abstract Mudflow is destructive because the flow’s tendency to become unstable at a small Froude number, leading to roll waves of a steep front that can strike an obstacle with great force. We conducted simulations of roll waves in mudflow down an inclined open channel to determine the impact force of the waves against hydraulic structures of various shapes and orientations using a depth-averaged shallow-mudflow model. The roll waves increase in amplitude with distance from a local disturbance. The rate of the increase depends on the Froude number of the undisturbed flow, and the rheological properties of the mud. The wave-impact force could reach a peak of more than an order of magnitude greater than the force on the structure without the roll waves. However, an obstacle with a sharp and pointy front can deflect the incident waves, significantly reducing the impact force.
APA, Harvard, Vancouver, ISO, and other styles
6

Chepurna, T., D. Kasiyanchuk, E. Kuzmenko, I. Chepurnyj, and Y. Bilinska. "Mudflows risks. Assessment of mudflow risk on the example of east part of the Upper Tisza basin." In 15th EAGE International Conference on Geoinformatics - Theoretical and Applied Aspects. Netherlands: EAGE Publications BV, 2016. http://dx.doi.org/10.3997/2214-4609.201600491.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kutova, D., and T. Chepurna. "Methodology Of Geoinformation Approach Of Mudflow Processes Studing." In 12th International Conference on Monitoring of Geological Processes and Ecological Condition of the Environment. Netherlands: EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201803162.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Howard, Alan D., William E. Dietrich, Rebecca M. E. Williams, Alex M. Morgan, Rossman P. Irwin, Jeffrey M. Moore, and Daniel E. J. Hobley. "MUDFLOW ALLUVIAL FANS OF THE ATACAMA DESERT IN CHILE." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-283742.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Aleinikova, Anna, Elena Aleinikova, and Nataliya Marsheva. "Mudflow danger of periglacial lakes in the Elbrus region." In Seventh International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2019), edited by Giorgos Papadavid, Kyriacos Themistocleous, Silas Michaelides, Vincent Ambrosia, and Diofantos G. Hadjimitsis. SPIE, 2019. http://dx.doi.org/10.1117/12.2532194.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chepurna, T., and E. Kuzmenko. "Long-term modeling of mudflow processes activation within Carpathian region." In First EAGE Workshop on Assessment of Landslide and Debris Flows Hazards in the Carpathians. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902164.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Mudflow"

1

Amos, C. L., M. Brylinsky, S. Lee, and D. O'Brien. Littoral mudflat stability monitoring the Humber estuary, S. Yorkshire, England, LISPUK - April 1995. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/207539.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Development and routing of mudflow resulting from hypothetical failure of Spirit Lake debris dam, Washington. US Geological Survey, 1992. http://dx.doi.org/10.3133/wri914028.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Field guide to hydrothermal alteration in the White River altered area and in the Osceola Mudflow, Washington. US Geological Survey, 2003. http://dx.doi.org/10.3133/b2217.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography