Relevant bibliographies by topics / Dam failures

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Dam failures'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Dam failures"

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Li, Yanan, Han Zhang, Yanling Yuan, Ling Lan, and Yongqi Su. "Research on Failure Modes and Causes of 100-m-High Core Wall Rockfill Dams." Water 16, no. 13 (June 26, 2024): 1809. http://dx.doi.org/10.3390/w16131809.

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Rockfill dams are the most competitive type of dam in complex geological environments. Identifying the failure modes and causes in high dams over 100 m is critical for better guiding high dam designs and implementing safety prevention and control measures. To this end, this paper investigated numerous cases of earth–rock dam breaches and failure modes in rockfill dams globally, with a particular focus on dams over 100 m in height, encompassing all such dams in China. The study categorized dam failure modes based on whether the dams were built before or after 1980. It also examined the causes of dam failures in terms of dam height, foundation characteristics and thickness, and failure time. Additionally, the paper analyzed a rockfill dam in China, with a height of 136 m and over ten years of operation, as a case study. We analyzed the spatial and temporal characteristics and causes of failures, such as dam crest cracking, high-level seepage, and gallery cracking, using the design situation, monitoring data, and numerical simulation. The paper also addressed issues related to dam design and foundation treatment, providing recommendations for improvement. The study indicated that the overall risk of total failure for dams over 100 m is already low. However, longitudinal cracks on the dam crest, core wall seepage, hydraulic splitting, and seepage damage to the dam foundation are primary issues in the current high core wall rockfill dams. These issues are mainly caused by uneven structural deformation of the dam and its foundation. A reasonable design of rockfill materials and foundations can mitigate these failures.
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Rico, M., G. Benito, A. R. Salgueiro, A. Díez-Herrero, and H. G. Pereira. "Reported tailings dam failures." Journal of Hazardous Materials 152, no. 2 (April 2008): 846–52. http://dx.doi.org/10.1016/j.jhazmat.2007.07.050.

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Stark, Timothy D., Lucia Moya, and Jiale Lin. "Rates and Causes of Tailings Dam Failures." Advances in Civil Engineering 2022 (November 22, 2022): 1–21. http://dx.doi.org/10.1155/2022/7895880.

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This paper analyzes two tailings dam databases and recent failures to assess the local and global failure rates of upstream, downstream, and centerline raised tailings dams. Since 2000, the failure rate for all three raising methods has decreased except in Brazil, which helps explain the recent Brazilian regulations banning upstream raising. However, the failure rates also show that the downstream and centerline raising methods of tailings dams are not immune to failure, so, if mining continues, one of these three raising methods will be used, and all have been involved in prior failures. The paper also presents data on failure mechanisms, showing that slope stability, earthquakes, and overtopping are the three primary causes of tailings dam failures. To continue decreasing the failure rate of tailings dams, the following features and practices should be used in all types of tailings dams: drainage systems, engineering analyses, instrumentation, monitoring, inspection, and qualified external peer review to further reduce the failure rates, especially in Brazil. Finally, a section containing data on release volume as a function of dam height and total storage volume is presented.
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Canno Ferreira Fais, Laura Maria, Verónica Andrea González-López, Diego Samuel Rodrigues, and Rafael Rodrigues de Moraes. "A copula based representation for tailings dam failures." 4open 3 (2020): 12. http://dx.doi.org/10.1051/fopen/2020011.

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In this article, we model the dependence between dam factor and D max, where dam factor is an indicator of risk of a tailings dam failure, which involves the height H of the tailings dam, the volume of material housed by the tailings dam VT and the volume dispensed by the tailings dam, VF, when the dam breaks. And, Dmax is the maximum distance traveled by the material released by the tailings dam, after the collapse. With the dependence found via copula models and Bayesian estimation, given a range of dam factor, we estimate the probability of the released material to exceed a certain threshold. Since the dam factor involves the released volume VF (unknown before the dam break), we present a naive way to estimate it using VT and H. In this way, it is possible to estimate the dam factor of a tailings dam and with such a value to identify the probability of the tailings dam to show a Dmax that exceeds a certain threshold.
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Cruz, Claudinei Oliveira, Henrique Nogueira Soares, and Hernani Mota de Lima. "Tailings dams’ classification based on risk using data from SIGBM." Caderno Pedagógico 21, no. 3 (March 25, 2024): e3359. http://dx.doi.org/10.54033/cadpedv21n3-164.

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The Brumadinho and Mariana tailings dam failures in Brazil tragically highlighted the critical need for robust risk management in the mining sector. Tailings dams, by their very nature, pose significant risks to downstream communities and the environment in the event of failure. To mitigate these risks, a comprehensive risk classification system is essential. This abstract emphasizes the real-world impact of dam failures and strengthens the importance of risk classification. Risk analysis plays a central role in identifying, quantifying, and ultimately mitigating the potential consequences of tailings dam failure. The classification process considers various factors that influence dam stability and safety, including dam geometry and construction methods — the design and construction techniques employed significantly impact a dam's stability; tailings characteristics — the physical and chemical properties of the stored tailings can influence factors like liquefaction potential; operating conditions — factors like the rate of tailings deposition and the presence of seismic activity need evaluation; drainage system effectiveness — a well-functioning drainage system is crucial for managing pore pressures within the dam. By analyzing these elements, risk classification aims to categorize tailings dams into distinct risk levels, typically ranging from low to very high. This categorization allows for targeted risk mitigation strategies to be implemented based on the specific vulnerabilities of each dam. This paper proposes a methodology for risk classification of tailings dams utilizing data from the Brazilian National Mining Agency's (ANM) Integrated Mining Dam Management System (SIGBM). The study focuses on 203 dams situated in Minas Gerais, a Brazilian state with a history of dam failures. Data was extracted from SIGBM in February 2023. This research not only presents a general risk classification for the assessed dams but also delves deeper, offering a quantitative measure of vulnerability, risk potential, and potential consequences of a failure event for each individual dam.
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Rico, M., G. Benito, and A. Díez-Herrero. "Floods from tailings dam failures." Journal of Hazardous Materials 154, no. 1-3 (June 2008): 79–87. http://dx.doi.org/10.1016/j.jhazmat.2007.09.110.

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Vasoya, Kamal, and Nayankumar Soni. "Seepage Analysis of Core Section of Jhuj Dam." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 713–17. http://dx.doi.org/10.22214/ijraset.2022.42312.

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Abstract: Zoned type Earthen dams are the type of Rolled fill Earthen dam because the soil is compacted by mechanical rollers in thin layers of 20-30 cm having central impervious core surrounded by shell as pervious material. These dams made since early days of civilization and constitute to be the most common type, because it is generally built of locally available soils proved to be most economical. The soil used in earthen dam are suspectable to seepage through the body of dam due to their permeability. Due to seepage soil gets reduces its strength and failures of dam may occurs. Past studies on earthen dam failures concluded that about 30% of dam failed due to seepage. An impervious central core is used in zoned type earthen dam to reduce the seepage quantity through the body of the dam and protects against the seepage failure of dam like piping and sloughing. Earthen dams are vulnerable to failures due to seepage that take place in the core since all soils are pervious to some extent. One of the best ways to control seepage problem in earthen dam is by using proper impervious soil for core section which provides the water tightness to flow through it. Thus, this paper analyses the usage of locally available soils with different combinations with central impervious vertical core and to study the seepage discharge by using Darcy law. The results obtained from the study is compared with actual seepage data obtained with existing soil in central core. Keywords: Impervious core, Permeability and Seepage, Smear effects, Phreatic line, Flow net
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Foster, Mark, Robin Fell, and Matt Spannagle. "A method for assessing the relative likelihood of failure of embankment dams by piping." Canadian Geotechnical Journal 37, no. 5 (October 1, 2000): 1025–61. http://dx.doi.org/10.1139/t00-029.

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A method for estimating the relative likelihood of failure of embankment dams by piping, the University of New South Wales (UNSW) method, is based on an analysis of historic failures and accidents in embankment dams. The likelihood of failure of a dam by piping is estimated by adjusting the historical frequency of piping failure by weighting factors which take into account the dam zoning, filters, age of the dam, core soil types, compaction, foundation geology, dam performance, and monitoring and surveillance. The method is intended only for preliminary assessments, as a ranking method for portfolio risk assessments, to identify dams to prioritise for more detailed studies, and as a check on event-tree methods. Information about the time interval in which piping failure developed and the warning signs which were observed suggest that the piping process often develops rapidly, giving little time for remedial action. In the piping accidents, the piping process reached some limiting condition allowing sufficient time to draw down the reservoir or carry out remedial works to prevent breaching.Key words: dams, failures, risk, probability, piping.
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Kurzekar, Ujwal. "Design of Kawlewada Dam and its Components." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 10, 2021): 100–108. http://dx.doi.org/10.22214/ijraset.2021.36245.

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This paper presents the design and stability analysis of Kawlewada dam (a concrete gravity dam situated in kawlewada village of gondia district) and its components. Through, the demanding years, it has been observed that failures of dams due to many factors are common. So, it is the essential to analysis the various components, parts of dam against all its modes of failures, forces acting on it, uncontrollable disasters such as earthquake, disaster, etc. For this, the preliminary data of the dam required for design, such as control levels, dimensions, crest width, base width, etc. was collected through the Inspection Engineer, posted at Dhapewada Lift Irrigation Office, Tirora, Dist. Gondia. On the basis of collected data the elementary profile and practical profile of dam was estimated, further all the major and the minor force forces acting on dam were calculated, stability analysis of designed dam against all modes of failure and for various load combinations was carried out in STAAD PRO software and was checked for permissible limits. Design of spillway, stilling basin and earthen dam was also carried out for the designed dam. Further, canal originating from the dam and carrying water to culturable command area was also designed by taking care of peak discharge as required by crops.
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Oppikofer, Thierry, Reginald L. Hermanns, Vegard U. Jakobsen, Martina Böhme, Pierrick Nicolet, and Ivanna Penna. "Semi-empirical prediction of dam height and stability of dams formed by rock slope failures in Norway." Natural Hazards and Earth System Sciences 20, no. 11 (November 27, 2020): 3179–96. http://dx.doi.org/10.5194/nhess-20-3179-2020.

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Abstract. Based on an inventory of 69 dams formed by rock slope failures in southwestern Norway and published inventories from other parts of the world, we developed semi-empirical relationships linking the maximum dam height (HD.max in metres) to dam volume (VD in 106 m3) and other relevant parameters such as valley width (WV in metres) or dam area (AD in square kilometres). Power laws are obtained for HD.max=f(VD) and HD.max=f(VD, WV), while a linear relationship links HD.max to the ratio VD∕AD. For dams in southwestern Norway, the linear relationship HD.max=1.75×VD/AD has the least uncertainties and provides the best results when comparing predicted dam heights with a validation dataset composed of existing dams in northern Norway and numerically modelled dams for possible rock slope failures. To assess the stability of future dams, we use the predicted dam heights in the dimensionless blockage index (DBI) and relating this index to the probability of dam failure derived from our dataset and other published databases on landslide dams. This study underlines the potential of semi-empirical relationships for assessing dam height and stability that needs to be included in preliminary hazard and risk assessment for unstable rock slopes, because damming of a river is an important secondary effect of landslides due to upstream flooding and possible outburst floods in the case of dam failure.
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Dissertations / Theses on the topic "Dam failures"

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Xu, Yao. "Analysis of dam failures and diagnosis of distresses for dam rehabilitation /." View abstract or full-text, 2010. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202010%20XU.

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Al, Maqbali Nasser. "Risk assessment of dams." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09ENS/09ensa316.pdf.

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Bibliography: leaves 101-104. Explores risk assessment of dams, a fundamental approach for dam safety measurement, providing a base on which all safety assessment and any appropriate regulation should be developed. Includes an overview of the relevant literature; an example of the application of this method by the South Australia Water Corporation; and it is also applied to the Wadi Al Jizzi Recharge Dam in the Sultanate of Oman. Conclusions and recommendations are presented on the applicability of risk assessment of dams method in the Sultanate of Oman.
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Imbrogno, David F. "Analysis of Dam Failures and Development of a Dam Safety Evaluation Program." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1406168902.

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Lismanis, Brandon. "Numerical Modelling of Dam Breaching." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24004.

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Until recently, research has been scarce in the field of physical modelling of dam breaching. Over the past few years, teams from the University of Ottawa, Canada, Delft University of Technology, Netherlands, and HR Wallingford, United Kingdom have worked on several physical models to help determine how various dam breaching characteristics vary due to changes in dam geometry and geotechnical properties. The purpose of this project is to use these new experimental data sets to compare and validate the applicability range of two existing pieces of software, MIKE11-DB and BREACH developed by the Danish Hydraulic Institute and National Weather Service, respectively. Several breaching characteristics such as the outflow hydrograph, peak flow, lag time, breaching time, breach width, and water level are considered in the present study. A sensitivity analysis is also performed on the model’s main input parameters and their sensitivity and performance is ranked accordingly.
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Wishart, Jeremy Scott. "Overtopping Breaching of Rock-Avalanche Dams." Thesis, University of Canterbury. Civil Engineering, 2007. http://hdl.handle.net/10092/1193.

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River blockages formed by rock avalanches appear to pose a higher hazard potential than other landslide dams, given the extreme run-out distances and volumes of rock avalanche deposits. Recent research has identified rock avalanche deposits to have internal sedimentology consisting of a coarse surficial material (carapace) and a finer fragmented interior (body) potentially of critical importance to rock-avalanche dam stability. Physical scale modelling of overtopping failure and breach development in rock avalanche dams was used to quantify the influence of this sedimentology on critical breach parameters, and their prediction using existing embankment dam breach technologies. Results from this study indicate that the time to failure for rock avalanche dams is approximately twice that observed for homogeneous dams due to the armouring properties of the carapace; and that peak discharge is not significantly affected by sedimentology. While application of empirical, parametric, dimensional and physically based models indicated that uncertainty associated with predicted dam break discharges could range from ±19% to ±107%, no modelling technique was able to simulate the armouring phenomenon adequately. Comparison of actual and simulated breach evolution shows linear assumptions of breach depth and width development (as observed in homogeneous dams) to be incorrect. In the context of hazard management, the results suggest that empirical regression relationships should be used for rapid assessment of potential dam break flood magnitude.
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Boughoufalah, Mohamed. "Earthquake input mechanisms for dam-foundation interaction." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63932.

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Bag, Firat. "Numerical Simulation Of The Cinarcik Dam Failure On The Orhaneli River." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605843/index.pdf.

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This thesis analyzes the probable outcome of the fictitious failure of a dam under a set of pre-defined scenarios, within the framework of a case study, the case subject being the Cinarcik Dam located within Bursa Province of Turkey. The failure of the dam is not analyzed neither structural nor hydraulic-wise but is assumed to be triggered when certain critical criteria are exceeded. Hence, the analyses focus on the aftermath of the failure and strive to anticipate the level of inundation downstream of the dam itself. For the purpose of the analyses, the FLDWAV software developed by the National Weather Service of USA is used to spatially and temporally predict the flow profiles, water surface elevations and discharges occurring downstream of the Ç
inarcik Dam under the defined set of scenarios. Based on these analyses, indicative inundation maps and settlements under risk will be identified, and the thesis study will further address some available pre-event measures that may be taken in advance.
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Durieux, Johan Hendrik. "Development of a practical methodology for the analysis of gravity dams using the non-linear finite element method." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-06232009-152815/.

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Reynolds, Sonel. "Evaluating the decision criteria for the prioritisation of South African dams for rehabilitation in terms of risk to human lives." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80288.

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Thesis (MScEng)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: In South Africa a large number of dams owned by the Department of Water Affairs (DWA) need to be rehabilitated. This study investigated the decision process involved in the prioritisation of dams for rehabilitation. DWA developed a risk analysis methodology for defining the risks associated with dam safety, expressed as the combination of the probability and consequences of dam failure. These risks are evaluated usingmultiple acceptability criteria to assess risk to human life and the economic, social, socio-economic and environmental impacts of dam failure. In this study, the criteria used in the decision process to evaluate the acceptability of life safety risks were evaluated by comparing to international best practice methods, where the acceptability of risk to human life is commonly assessed as the expected number of fatalities against life safety criteria presented as FN-criteria on an FN-diagram. Damrehabilitation should reduce the probability of dam failure, thereby reducing the risk to society in terms of the expected lives lost. However, the rehabilitation works come at a cost and the level of these investments are usually large. In addition, the rehabilitation of South African government owned dams are financed by society and these financial resources are limited. Thus investments into dam rehabilitation works should be worthwhile for society. Society’s Willingness to Pay (SWTP) for safety was applied to South African dam safety to determine the acceptable level of expenditure into life safety that is required by society. Investments into improved safety levels are not always dictated by society, but could also be driven by the decision maker or owner requiring an economically optimal solution for the rehabilitation. Economic optimisation accounts for considerations additional to life safety, including economic motivations, damage costs of dam failure as well as compensation costs for lives lost. Often economic optimisation would govern the decision problem. Also, the DWA current evaluation does not take the cost of rehabilitation into account in any way. Thus, FN-criteria that primarily evaluates life safety, but also incorporates a measure of economic efficiency, were suggested in this study.
AFRIKAANSE OPSOMMING: In Suid-Afrika moet ’n groot aantal dammewat deur dieDepartement vanWaterwese (DWA) besit word gerehabiliteer word. Hierdie studie het die besluitnemingsproses ondersoekwat toegepasword om damme te prioritiseer vir rehabilitasiewerke. DWA het ’n bestaande metodologie wat gebaseer is op risiko-analise. Die risikos wat verband hou met damveiligheid word deur die metode bepaal en word uitgedruk as die kombinasie van waarskynlikheid en die beraamde gevolge van damfaling. Hierdie risikosword geëvalueer teenoor verskeie kriteriawat die aanvaarbaarheid van risikos teenoor menselewens en die ekonomiese, sosiale, sosio-ekonomiese en omgewingsimpakte van damfalings assesseer. In hierdie studie word die kriteria wat gebruik word in die besluitnemingsproses om die aanvaarbaarheid van risikos teenoor menselewens te bepaal geëvalueer deur die kriteria te vergelyk met metodes wat internasionaal as beste praktyk beskou word. Internasionaal word die aanvaarbaarheid van risikos teenoor menselewens oor die algemeen as die verwagte aantal sterftes teenoor lewensveiligheidskriteria FN-kriteria op ’n FN-diagram geassesseer. Dam rehabilitasiewerke behoort die waarskynlikheid van damfaling te verminder, sodoende verminder die risiko teenoor die samelewing in terme van verwagte sterftes. Die rehabilitasiewerke vereis finansiële beleggings, en hierdie beleggings is gewoonlik groot. Verder word die rehabilitasie van Suid-Afrikaanse damme wat deur DWA besit word deur samelewing gefinansier en hierdie finasiële hulpbronne is beperk. Dus moet hierdie beleggings die moeite werd wees vir die samelewing. Die samelewing se bereidwilligheidomte betaal ("SWTP") vir veiligheid word toegepas in Suid- Afrikaanse damveiligheidomdie aanvaarbare vlak van beleggings vir ’n verbeterde veiligheid teenoor menselewens wat deur die samelewing vereis word te bepaal. Beleggings in verbeterde damveiligheidsvlakke word egter nie altyd bepaal deur die samelewing nie,maar kan ook gedryf word deur die besluitnemer of eienaar wat ’n ekonomies optimale oplossing vir die rehabilitatiesewerke vereis. Ekonomiese optimering neem oorwegings addisioneel tot lewensveiligheid in ag, insluitend ekonomiese motiverings, skade kostes as die dam faal, sowel as vergoedingskostes vir die verwagte sterftes. Ekonomiese optimering beheer dikwels die besluitnemingsprobleem. Verder neem die huidige DWA besluitnemingssproses in geen manier die kostes van rehabilitasie in ag nie. Dus word FN-kriteria wat hoofsaaklik veiligheid teenoor menselewens evalueer,maar wat ook ’n mate van ekonomiese doeltreffendheid insluit, voorgestel in hierdie studie.
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Soliday, Stanley Jr. "Limits of limit equilibrium and finite element techniques applied to cracked debris dams on collapsing foundations." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4428.

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Limits of slope stability, limit equilibrium methods, and of the finite element code FEADAM are reached in the application of these methods to the problem of cracked dams constructed on collapsing soils.
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Books on the topic "Dam failures"

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Geological Survey (U.S.), ed. Floods from dam failures. Denver, Colo: U.S. Dept. of the Interior, Geological Survey, 1985.

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Žák, Ladislav. Jizerskohorské přehrady: Katastrofa na Bíle Desné - Protržená přehrada. Liberec: Knihy 555, 2006.

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International Commission on Large Dams. Subcommittee of Dam Incidents and Accidents., ed. Lessons from dam incidents. New York, NY: American Society of Civil Engineers, 1988.

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Dam Safety Seminar (1986 Edmonton, Alta.). Proceedings of Dam Safety Seminar, Edmonton, Alberta, September/86. Vancouver, B.C: BiTech, 1986.

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Clague, J. J. Formation and failure of natural dams in the Canadian Cordillera. Ottawa, Canada: Geological Survey of Canada, 1994.

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Lucchi, Graziano. Stava perchè?: La genesi, le cause, le responsabilità della catastrofe di Stava negli atti dell'inchiesta ministeriale e nelle sentenze del procedimento penale. 2nd ed. Trento: Curcu & Genovese, 2002.

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author, Chen Huayong, Xue Yang author, and Niu Zhipan author, eds. Ti ji ku qun de lian suo kui jue. Beijing: Zhongguo shui li shui dian chu ban she, 2013.

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Nombre, Adama. La sécurité des barrages au Burkina Faso. [Burkina Faso]: A. Nombre, 1995.

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United States. Bureau of Land Management. Anita Reservoir Dam failure. [Place of publication not identified]: U.S. Department of the Interior, Bureau of Land Management, 1997.

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Canadian Society of Civil Engineers., ed. Dam construction and failures during the last thirty years. [Montréal?: s.n., 1991.

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Book chapters on the topic "Dam failures"

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Oboni, Franco, and Cesar Oboni. "Dam Stability Failures." In Tailings Dam Management for the Twenty-First Century, 153–67. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19447-5_11.

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Hübl, Johannes, Jürgen Suda, Taro Uchida, and Georg Nagl. "Check Dam Failures." In Advances in Debris-flow Science and Practice, 565–88. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-48691-3_17.

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Alonso, Eduardo E., Núria M. Pinyol, and Alexander M. Puzrin. "Earth Dam Sliding Failure: Aznalcóllar Dam, Spain." In Geomechanics of Failures. Advanced Topics, 129–64. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3538-7_4.

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Alonso, Eduardo E., Núria M. Pinyol, and Alexander M. Puzrin. "Dynamics of Dam Sliding: Aznalcóllar Dam, Spain." In Geomechanics of Failures. Advanced Topics, 251–73. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3538-7_6.

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Li, Dandan, and Huiwen Wang. "Human factor failure pathways in dam failures." In Structural Seismic and Civil Engineering Research, 681–85. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003384342-87.

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Oboni, Franco, and Cesar Oboni. "Historic Failures “Statistics”." In Tailings Dam Management for the Twenty-First Century, 35–51. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19447-5_4.

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Sivapriya, S. V., and A. Anne Sherin. "Causes and Consequences of Dam Failures—Case Study." In Lecture Notes in Civil Engineering, 155–59. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5041-3_11.

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Van Tien, Pham, Tran Thanh Nhan, Le Hong Luong, and Tran Quoc Cuong. "Physical Mechanism and Numerical Simulation of Landslide Dam Formation." In Progress in Landslide Research and Technology, Volume 3 Issue 1, 2024, 399–408. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-55120-8_29.

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AbstractLandslide dam formation creates one of the most hazardous geomorphic phenomena, which often threaten the safety of upstream and downstream communities by causing various secondary hazards, such as backwater inundation, dam breaches, debris flows, and outburst floods. Understanding the conditions and processes of the landslide dam formation is useful for hazard assessment and its disaster countermeasures. This research presents the physical mechanism of landslide dams and their entire formation process through three typical cases, namely the large-scale Kuridaira and Akatani landslide dams in Nara prefecture, Japan and the massive Jure landslide dam in Sindhupalchok district, Nepal, by using ring shear tests and integrated simulation with LS-RAPID model. The results from ring shear tests show that the samples of the sliding surfaces underwent substantial grain crushing and sliding-surface liquefaction due to a rapid generation of pore water pressure and significant loss of shear strength. In the computer model, the formation processes of the three landslide dams consisted of four main stages from stable slopes to local failures through progressive failures to massive slope movement at high speeds and river damming at the end of the motion. The analysis indicates the high mobility behavior that governs the rapid motion of the landslides is a primary contributing factor to the dam formation.
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Felix, Olorunfemi, and Onwuemele Andrew. "Process and project failures in dam-building in Nigeria: The case of Zamfara Hydropower Dam." In Chinese Hydropower Development in Africa and Asia, 130–44. Abingdon, Oxon; New York, NY: Routledge, 2017. | Series: Routledge explorations in development studies: Routledge, 2017. http://dx.doi.org/10.4324/9781315440040-8.

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Charles, J. Andrew, Ljubomir Tančev, Reginald W. Herschy, Reginald W. Herschy, Klas Cederwall, Isaac Gertman, Reginald W. Herschy, et al. "Dam Failures: Impact on Reservoir Safety Legislation in Great Britain." In Encyclopedia of Lakes and Reservoirs, 177–86. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-1-4020-4410-6_207.

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Conference papers on the topic "Dam failures"

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Muhunthan, B., and A. N. Schofield. "Liquefaction and Dam Failures." In Geo-Denver 2000. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40512(289)20.

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Arunapriya, G. G. D. P. I., A. G. S. I. Liyanage, S. Kishanth, H. M. R. Premasiri, N. P. Ratnayake, and A. M. K. B. Abeysinghe. "Applicability of GPR technique for earthen dam failures." In International Symposium on Earth Resources Management & Environment - ISERME 2023. Department of Earth Resources Engineering, 2023. http://dx.doi.org/10.31705/iserme.2023.14.

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A dam is a structure constructed across a river or stream to store water upstream from the obstruction. Dams are susceptible to damage for various reasons, which can lead to many catastrophic disasters. Therefore, identifying the dam's structural failures prior to a disaster is crucial. Drilling can be used for dam failure identification. But it is costly and destructive. Integrated geophysical methods have always helped in identifying subsurface features. In the current investigation, the applicability of ground penetrating radar (GPR) to detect potential failures in earthen dams was assessed. The Uyanwatta Lake earthen dam was selected as the study area during this investigation, considering the reported water leakage in this dam. A GPR survey was conducted with 100 MHz and 300 MHz antennas along five survey paths. Those are the top of the dam, 1.5 m below the top of the dam, and three distinct paths for the lake's spill. During the interpretation process, clay layers, fractured zones, gravel layers, and water seepage areas were identified. Those water leakage areas indicate that there has been a leak in the dam. Those results were compared with exploratory drill hole data from the Uyanwatta Lake Dam. Drill hole data has only presented information about the rock types present in the dam. But GPR data was able to provide information on loose sediments in the shallow depths of the dam as well. That indicates GPR data has the potential to provide additional information related to earthen dams.
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Amirsayafi, Pouya. "Lessons from Dam Failures, and Dam Safety Emergency Management Measures in Australia." In Annual International Conference on Architecture and Civil Engineering. Global Science & Technology Forum (GSTF), 2015. http://dx.doi.org/10.5176/2301-394x_ace15.16.

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Fitton, Timothy. "Avoiding dam failures: is filtration the best solution?" In Paste 2024: 26th International Conference on Paste, Thickened and Filtered Tailings. Australian Centre for Geomechanics, Perth, 2024. http://dx.doi.org/10.36487/acg_repo/2455_03.

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Jorgeson, Jeff, Woodman W. Berry, Mark R. Jourdan, and Xinya Ying. "2-D Flood Modeling of Multiple Simultaneous Dam Failures." In World Environmental and Water Resources Congress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40976(316)459.

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Mojib, Duke M. "Mathematical Modeling of Earth Dam Failures due to Overtopping." In Waterpower Conference 1999. Reston, VA: American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/40440(1999)110.

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Nichols, Elliot, Joe Smith, J. David Frost, and Youssef Hashash. "Downstream Impacts on Geostructures of the Michigan Dam Failures." In Geo-Congress 2022. Reston, VA: American Society of Civil Engineers, 2022. http://dx.doi.org/10.1061/9780784484036.039.

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Graham, Wayne J. "Major U.S. Dam Failures: Their Cause, Resultant Losses, and Impact on Dam Safety Programs and Engineering Practice." In Great River History Symposium at World Environmental and Water Resources Congress 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41032(344)7.

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Sasanakul, Inthuorn, Sarah L. Gassman, Charles E. Pierce, William Ovalle, Ryan Starcher, Emad Gheibi, and Mostaqur Rahman. "Dam Failures from a 1000-Year Rainfall Event in South Carolina." In Geotechnical Frontiers 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480458.024.

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Xu, Yao, Limin Zhang, and Jinsheng Jia. "Lessons from Catastrophic Dam Failures in August 1975 in Zhumadian, China." In GeoCongress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40971(310)20.

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Reports on the topic "Dam failures"

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Koslow, K., and D. Van Haaften. Flood routing analysis for a failure of Mackay Dam. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5649434.

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Clague, J. J., and S. G. Evans. A self-arresting moraine dam failure, St. Elias Mountains, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/132803.

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Moss, Robb, Tristan Gebhart, David Frost, and Christian Ledezma. Flow-Failure Case History of the Las Palmas, Chile, Tailings Dam. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, January 2019. http://dx.doi.org/10.55461/gvif2980.

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This report documents the flow failure of the Las Palmas tailings dam that was induced by the 27 February 2010 Maule Chile M8.8 earthquake. The Las Palmas site is located in Central Chile in Region VII near the town of Talca. Construction of the tailings dam occurred between 1998 as part of a gold mining operation and was no longer in active use. The ground shaking from the earthquake induced liquefaction of the saturated tailings material and resulted in a flow failure that ran out upwards of 350 m, flowing downslope in two directions. This report is broken into three sections: A summary of the construction and flow failure of the Las Palmas tailings dam; Details on the field investigations at the site, including the 2010 GEER reconnaissance, 2011 litigation support [DICTUC 2012], and the recent PEER–NGL-funded 2017 investigation; and Back-analysis of the flow failure by Gebhart [2016] to estimate the residual strength. The goal of this work is to provide a “high-quality” flow-failure case history to augment the existing database. The existing database is composed of roughly thirty case histories of varying quality (e.g., Weber et al. [2015] and Kramer and Wang [2015]). Herein, the term “high-quality” means that the in situ measurements were made in a controlled and repeatable manner, and that the back-analysis of the residual strength was performed considering static and dynamic effects of the slide mass. The results from this research indicate that the median back-analyzed residual strength of the liquefied material is ~8.3 kPa (~173 psf) at a pre-earthquake vertical effective stress of 2 atm (~200 kpa or 4000 psf), which is correlated to a median SPT blow count of N1,60~2.5, a median CPT tip resistance of qc1~1.3 MPa, and a median shear-wave velocity of VS1~172 m/sec. The back analyzed residual strength has a nominal coefficient of variation of 5.5% determined using a sensitivity analysis.
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Montalvo-Bartolomei, Axel, Bryant Robbins, and Jamie López-Soto. Backward erosion progression rates from small-scale flume tests. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42135.

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Backward erosion piping (BEP) is an internal erosion mechanism by which erosion channels progress upstream, typically through cohesionless or highly erodible foundation materials of dams and levees. As one of the primary causes of embankment failures, usually during high pool events, the probability of BEP-induced failure is commonly evaluated by the U.S. Army Corps of Engineers for existing dams and levees. In current practice, BEP failure probability is quantitatively assessed assuming steady state conditions with qualitative adjustments for temporal aspects of the process. In cases with short-term hydraulic loads, the progression rate of the erosion pipe may control the failure probability such that more quantitative treatment of the temporal development of erosion is necessary to arrive at meaningful probabilities of failure. This report builds upon the current state of the practice by investigating BEP progression rates through a series of laboratory experiments. BEP progression rates were measured for nine uniform sands in a series of 55 small-scale flume tests. Results indicate that the pipe progression rates are proportional to the seepage velocity and can be predicted using equations recently proposed in the literature.
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Brown, Yolanda, Twonia Goyer, and Maragaret Harvey. Heart Failure 30-Day Readmission Frequency, Rates, and HF Classification. University of Tennessee Health Science Center, December 2020. http://dx.doi.org/10.21007/con.dnp.2020.0002.

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30 Day Hospital Readmission Rates, Frequencies, and Heart Failure Classification for Patients with Heart Failure Background Congestive heart failure (CHF) is the leading cause of mortality, morbidity, and disability worldwide among patients. Both the incidence and the prevalence of heart failure are age dependent and are relatively common in individuals 40 years of age and older. CHF is one of the leading causes of inpatient hospitalization readmission in the United States, with readmission rates remaining above the 20% goal within 30 days. The Center for Medicare and Medicaid Services imposes a 3% reimbursement penalty for excessive readmissions including those who are readmitted within 30 days from prior hospitalization for heart failure. Hospitals risk losing millions of dollars due to poor performance. A reduction in CHF readmission rates not only improves healthcare system expenditures, but also patients’ mortality, morbidity, and quality of life. Purpose The purpose of this DNP project is to determine the 30-day hospital readmission rates, frequencies, and heart failure classification for patients with heart failure. Specific aims include comparing computed annual re-admission rates with national average, determine the number of multiple 30-day re-admissions, provide descriptive data for demographic variables, and correlate age and heart failure classification with the number of multiple re-admissions. Methods A retrospective chart review was used to collect hospital admission and study data. The setting occurred in an urban hospital in Memphis, TN. The study was reviewed by the UTHSC Internal Review Board and deemed exempt. The electronic medical records were queried from July 1, 2019 through December 31, 2019 for heart failure ICD-10 codes beginning with the prefix 150 and a report was generated. Data was cleaned such that each patient admitted had only one heart failure ICD-10 code. The total number of heart failure admissions was computed and compared to national average. Using age ranges 40-80, the number of patients re-admitted withing 30 days was computed and descriptive and inferential statistics were computed using Microsoft Excel and R. Results A total of 3524 patients were admitted for heart failure within the six-month time frame. Of those, 297 were re-admitted within 30 days for heart failure exacerbation (8.39%). An annual estimate was computed (16.86%), well below the national average (21%). Of those re-admitted within 30 days, 50 were re-admitted on multiple occasions sequentially, ranging from 2-8 re-admissions. The median age was 60 and 60% male. Due to the skewed distribution (most re-admitted twice), nonparametric statistics were used for correlation. While graphic display of charts suggested a trend for most multiple re-admissions due to diastolic dysfunction and least number due to systolic heart failure, there was no statistically significant correlation between age and number or multiple re-admissions (Spearman rank, p = 0.6208) or number of multiple re-admissions and heart failure classification (Kruskal Wallis, p =0.2553).
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Wibowo, Johannes, and Jamie López-Soto. Field Jet Erosion Tests on Benbrook Dam, Texas. Engineer Research and Development Center (U.S.), December 2021. http://dx.doi.org/10.21079/11681/42545.

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This report summarizes the results of eight field Jet Erosion Tests (JETs) performed on Benbrook Dam, TX. The results from these tests will be used by the U.S. Army Corps of Engineers, Fort Worth District, in assessments of the erosion resistance of the Benbrook Dam with regards to possible overtopping by extreme flooding. The JETs were performed at four different locations, i.e., two locations at the lowest crest elevation and two locations at the mid-slope face of the downstream embankment. Variations in estimated critical hydraulic shear stress and erosion rate values may have been caused by differences in soil composition, i.e., when the material changed from silt/sand to clay. The resulting values of the Erodibility Coefficient, Kd, and Critical Stress, τc, are very useful information in assessing the stability of Benbrook Dam during an overtopping event. Because of the observed natural variability of the materials, combining the erosion parameters presented in this report with the drilling logs and local geology will be imperative for assessing erosion-related failure modes of Benbrook Dam.
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Clague, J. J., and S. G. Evans. Formation and failure of natural dams in the Canadian Cordillera. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/194028.

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Parrish, Woodrow. Comparison of Repair Cycle Item Failure Data (7WS Versus DAC). Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada371069.

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Simos, N., and M. Reich. Seismic analysis of the Par Pond Dam: Study of slope failure and liquefaction. Technical evaluation report. Office of Scientific and Technical Information (OSTI), July 1994. http://dx.doi.org/10.2172/10109856.

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Krieger, Israel. Do We Debrief Successful Wars the Same Way We Debrief Failures? The Six-Day War. Fort Belvoir, VA: Defense Technical Information Center, March 1989. http://dx.doi.org/10.21236/ada217871.

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