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Artykuły w czasopismach na temat „Slope modelling”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 4 lutego 2022

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1

Harabinová, Slávka, and Eva Panulinová. "Modelling of ensuring slope stability." MATEC Web of Conferences 313 (2020): 00030. http://dx.doi.org/10.1051/matecconf/202031300030.

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Analysis and assessment of the slopes stability are an important in geotechnical engineering for all the times. The first and foremost requirement for the modelling and design of slope is to guarantee their safety and reliability during their service life. In analysing the overall stability of the ground, of soil or rock, all relevant modes of failure shall be taken into account. When modelling a slope stability processes, it should be considered: soil layering, occurrence and inclination of discontinuities, seepage and pore-water pressure distribution, shortand long-term stability, type of fa

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ITOH, Kazuya, Sumine KUSAKABE, Takuma KOITABASHI, Yasuo TOYOSAWA, and Naoaki SUEMASA. "PHYSICAL MODELLING OF SLOPE FAILURE DURING SLOPE CUTTING WORK." Doboku Gakkai Ronbunshuu C 66, no. 2 (2010): 250–63. http://dx.doi.org/10.2208/jscejc.66.250.

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Frankovská, Jana, Miloslav Kopecký, Jakub Panuška, and Juraj Chalmovský. "Numerical Modelling of Slope Instability." Procedia Earth and Planetary Science 15 (2015): 309–14. http://dx.doi.org/10.1016/j.proeps.2015.08.076.

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Yang, Guoxiang, Anthony K. Leung, Nengxiong Xu, Kunxiang Zhang, and Kunpeng Gao. "Three-Dimensional Physical and Numerical Modelling of Fracturing and Deformation Behaviour of Mining-Induced Rock Slopes." Applied Sciences 9, no. 7 (March 31, 2019): 1360. http://dx.doi.org/10.3390/app9071360.

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Fracturing behaviour of jointed rock mass subjected to mining can significantly affect the stability of the rock structures and rock slopes. Ore mining within an open-pit final slope would lead to large-scale strata and surface movement of the rock slope. Rock mass structure, or more specifically, the strength, spacing and distribution of rock joints, are the controlling factors that govern the failure and deformation mechanisms of the final slope. Two-dimensional (2-D) physical modelling tests have been conducted in the literature, but in general, most of them have simplified the geological c

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5

Fawaz, Ali. "Slope Stability Analysis Using Numerical Modelling." American Journal of Civil Engineering 2, no. 3 (2014): 60. http://dx.doi.org/10.11648/j.ajce.20140203.11.

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Skartveit, Arvid, and Jan Asle Olseth. "Modelling slope irradiance at high latitudes." Solar Energy 36, no. 4 (1986): 333–44. http://dx.doi.org/10.1016/0038-092x(86)90151-9.

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Ran, Qihua, Feng Wang, and Jihui Gao. "Modelling Effects of Rainfall Patterns on Runoff Generation and Soil Erosion Processes on Slopes." Water 11, no. 11 (October 25, 2019): 2221. http://dx.doi.org/10.3390/w11112221.

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Rainfall patterns and landform characteristics are controlling factors in runoff and soil erosion processes. At a hillslope scale, there is still a lack of understanding of how rainfall temporal patterns affect these processes, especially on slopes with a wide range of gradients and length scales. Using a physically-based distributed hydrological model (InHM), these processes under different rainfall temporal patterns were simulated to illustrate this issue. Five rainfall patterns (constant, increasing, decreasing, rising-falling and falling-rising) were applied to slopes, whose gradients rang

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Sonnenberg, R., M. F. Bransby, P. D. Hallett, A. G. Bengough, S. B. Mickovski, and M. C. R. Davies. "Centrifuge modelling of soil slopes reinforced with vegetation." Canadian Geotechnical Journal 47, no. 12 (December 2010): 1415–30. http://dx.doi.org/10.1139/t10-037.

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This paper reports a series of geotechnical centrifuge model tests conducted to investigate the mechanical reinforcement of slopes by vegetation. Some of the model slopes contained young willow trees, which were grown in controlled conditions to provide different root distributions and mechanical properties. Slopes were brought to failure in the centrifuge by increasing water pressures. The failure mechanisms were investigated photographically and using post-test excavation. By measuring the soil properties and pore pressures in each test when failure occurred, slope stability calculations cou

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9

Wang, Shun, Gregor Idinger, and Wei Wu. "Centrifuge modelling of rainfall-induced slope failure in variably saturated soil." Acta Geotechnica 16, no. 9 (March 11, 2021): 2899–916. http://dx.doi.org/10.1007/s11440-021-01169-x.

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AbstractThis paper presents the results of centrifuge tests on rainfall-induced instabilities in variably saturated slopes. The roles of rainfall intensity and initial conditions, such as slope angle, porosity and degree of saturation of the soil, in the failure initiation and postfailure kinematics are considered. The failure patterns, infiltration profile and deformation at prefailure and postfailure stages are characterized. The results indicate that rainfall-induced slope failures usually follow one of the following two failure modes, i.e. slide-to-flow and flowslide failure modes. The for

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10

Hardy, Sarah M., Craig R. Smith, and Andreas M. Thurnherr. "Can the source–sink hypothesis explain macrofaunal abundance patterns in the abyss? A modelling test." Proceedings of the Royal Society B: Biological Sciences 282, no. 1808 (June 7, 2015): 20150193. http://dx.doi.org/10.1098/rspb.2015.0193.

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Low food availability is a major structuring force in deep-sea benthic communities, sustaining only very low densities of organisms in parts of the abyss. These low population densities may result in an Allee effect, whereby local reproductive success is inhibited, and populations are maintained by larval dispersal from bathyal slopes. This slope–abyss source–sink (SASS) hypothesis suggests that the abyssal seafloor constitutes a vast sink habitat with macrofaunal populations sustained only by an influx of larval ‘refugees' from source areas on continental slopes, where higher productivity sus

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Almeida, Susana, Elizabeth Ann Holcombe, Francesca Pianosi, and Thorsten Wagener. "Dealing with deep uncertainties in landslide modelling for disaster risk reduction under climate change." Natural Hazards and Earth System Sciences 17, no. 2 (February 21, 2017): 225–41. http://dx.doi.org/10.5194/nhess-17-225-2017.

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Abstract. Landslides have large negative economic and societal impacts, including loss of life and damage to infrastructure. Slope stability assessment is a vital tool for landslide risk management, but high levels of uncertainty often challenge its usefulness. Uncertainties are associated with the numerical model used to assess slope stability and its parameters, with the data characterizing the geometric, geotechnic and hydrologic properties of the slope, and with hazard triggers (e.g. rainfall). Uncertainties associated with many of these factors are also likely to be exacerbated further by

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12

Fu, Bin, Yingchun Li, Chun’an Tang, and Zhibin Lin. "Failure of Rock Slope with Heterogeneous Locked Patches: Insights from Numerical Modelling." Applied Sciences 11, no. 18 (September 15, 2021): 8585. http://dx.doi.org/10.3390/app11188585.

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Rock slope stability is commonly dominated by locked patches along a potential slip surface. How naturally heterogeneous locked patches of different properties affect the rock slope stability remains enigmatic. Here, we simulate a rock slope with two locked patches subjected to shear loading through a self-developed software, rock failure process analysis (RFPA). In the finite element method (FEM)-based code, the inherent heterogeneity of rock is quantified by the classic Weibull distribution, and the constitutive relationship of the meso-scale element is formulated by the statistical damage t

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13

Shen, Nan, Zhanli Wang, Qingwei Zhang, Hao Chen, and Bing Wu. "Modelling soil detachment capacity by rill flow with hydraulic variables on a simulated steep loessial hillslope." Hydrology Research 50, no. 1 (August 23, 2018): 85–98. http://dx.doi.org/10.2166/nh.2018.037.

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Abstract Modelling soil detachment capacity by rill flow with hydraulic variables is essential to understanding the rill erosion process and developing physically based rill erosion models. A rill flume experiment with non-erodible flume bed and small soil samples was conducted. Seven flow discharges and six steep slope gradients were combined to produce various flow hydraulics. The soil detachment capacity increases with the increase in slope gradient and flow discharge. The critical slope gradients of 21.26 and 26.79% cause the detachment capacity to increase at a slow pace. The soil detachm

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14

Santoni, P. A., J. H. Balbi, and J. L. Dupuy. "Dynamic modelling of upslope fire growth." International Journal of Wildland Fire 9, no. 4 (1999): 285. http://dx.doi.org/10.1071/wf00004.

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A two-dimensional non-stationary model of fire spread including slope effects is proposed. The numerical study of this model allows us to predict the rate of spread, the fire front perimeter and the temperature distribution for a fire spreading across a fuel bed under slope conditions. The numerical results are compared with success to experimental data generated from two laboratory point-ignition fire experiments which were conducted on dehydrated Pinus pinaster litter with slopes of 20 and 30°. Résumé Nous proposons un modèle bidimensionnel évolutif de propagation de feu prenant en compte le

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15

Buscarnera, Giuseppe, and Andrew J. Whittle. "Constitutive modelling approach for evaluating the triggering of flow slides." Canadian Geotechnical Journal 49, no. 5 (May 2012): 499–511. http://dx.doi.org/10.1139/t2012-010.

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The paper presents a methodology to evaluate flow slide susceptibility in potentially liquefiable sandy slopes. The proposed approach accounts for both contractive and dilative volumetric behaviour during shearing using the MIT-S1 constitutive model. As a result, it is possible to distinguish among different types of undrained response induced by a rapid shear perturbation. The first part of the paper describes the general methodology for infinite slopes, providing an index of stability for incipient static liquefaction in shallow deposits. The methodology accounts for the anisotropy due to th

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16

Terhorst, Birgit, and Bodo Damm. "Slope Stability and Slope Formation in the Flysch Zone of the Vienna Forest (Austria)." Journal of Geological Research 2009 (May 27, 2009): 1–10. http://dx.doi.org/10.1155/2009/589037.

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The Rhenodanubian Flysch of the northern Vienna Forest is composed of various layers of sandstones, marly shales, calcareous marls, and clay shists, which are covered by Quaternary periglacial cover beds and loess deposits. This area at the margin of the eastern Alps represents an undulating landscape of the Austrian low-mountain regions. The Vienna Forest Flysch region is considered to be susceptible to landslides. Both petrography of the bedrock and soil mechanical properties of the Quaternary sediments control the current slope dynamics in the study area. In a temporal context it is evident

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17

Scarfone, Riccardo, Simon J. Wheeler, and Colin C. Smith. "Numerical study of the application of capillary barrier systems for prevention of rainfall-induced slope instabilities." E3S Web of Conferences 195 (2020): 01027. http://dx.doi.org/10.1051/e3sconf/202019501027.

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Slope instability is often caused by decreases in suction due to heavy and prolonged rainfall. In this study, the application of capillary barrier systems (CBSs) for suction control and slope stabilization purposes (i.e. reducing the risk of rainfall-induced slope instabilities) is analysed, due to their capacity to limit the percolation of water into the underlying soil. The behaviour of two slopes was studied numerically: a bare slope made of fine-grained soil and the same slope covered by a capillary barrier system. The time evolution of suction in the slopes subjected to realistic atmosphe

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18

Lemaire, Emilie, Anne-Sophie Mreyen, Anja Dufresne, and Hans-Balder Havenith. "Analysis of the Influence of Structural Geology on the Massive Seismic Slope Failure Potential Supported by Numerical Modelling." Geosciences 10, no. 8 (August 18, 2020): 323. http://dx.doi.org/10.3390/geosciences10080323.

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The stability of rock slopes is often guided significantly by the structural geology of the rocks composing the slope. In this work, we analysed the influences of structural characteristics, and of their seismic responses, on large and deep-seated rock slope failure development. The study was focused on the Tamins and Fernpass rockslides in the European Alps and on the Balta and Eagle’s Lake rockslides in the southeastern Carpathians. These case studies were compared with catastrophic rock slope failures with ascertained or very likely seismic origin in the Tien Shan Mountains. The main goals

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19

Hidayat, Rokhmat. "Analisis Stabilitas Lereng pada Longsor Desa Caok, Purworejo, Jawa Tengah." JURNAL SUMBER DAYA AIR 14, no. 1 (July 10, 2018): 63–74. http://dx.doi.org/10.32679/jsda.v14i1.195.

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Landslide occurred on June, 19th 2016 in Caok Village, Purworejo,Central Java. Caok Village is part of Menoreh hills area. Most of Slope in the landslide location has more than 20o. Before the landslide, rain occurred with maximum intensity 325mm/day. This is an indication that landslide was triggered by groundwater infiltration process, caused by high rainfall intensity and steep slopes. In this research, slope stability analyzed using Plaxis and Geo-slope software. Data that are soil engineering properties, steep slope, and groundwater table modelling with Plaxis and Geo-slope software to ob

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20

Acharya, Kiran Prasad, Netra Prakash Bhandary, Ranjan Kumar Dahal, and Ryuichi Yatabe. "Seepage and slope stability modelling of rainfall-induced slope failures in topographic hollows." Geomatics, Natural Hazards and Risk 7, no. 2 (September 2, 2014): 721–46. http://dx.doi.org/10.1080/19475705.2014.954150.

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Yin, Xiangjie, Hang Lin, Yifan Chen, Yixian Wang, and Yanlin Zhao. "Precise evaluation method for the stability analysis of multi-scale slopes." SIMULATION 96, no. 10 (August 3, 2020): 841–48. http://dx.doi.org/10.1177/0037549720943274.

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Slope stability analysis is a multi-scale problem. Typically, owing to the distinctions of slope scales (e.g., slope height or slope angle) in practical engineering, the stability calculation results of slopes with various scales from numerical methods inevitably exhibit different computational precision levels in the case of identical computational grids, and therefore the stability results of different slopes cannot be compared. To achieve equal accuracy stability analysis for multi-scale slopes, this study establishes numerical models of slopes with various scales as well as different grid

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22

Wongchana, Pongsakorn, and Peerapong Jitsangiam. "Experimental Investigation and Modelling of Claystone from Mae Moh Coal Mine, Thailand." Key Engineering Materials 841 (May 2020): 155–60. http://dx.doi.org/10.4028/www.scientific.net/kem.841.155.

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The open pit mine is excavation soil from the Earth's surface, leading to presence of cut steep slopes with stability-concerned manners. Mae Moh open pit mine has the main component of claystone with ambiguous properties under stress condition changes from mine operations. Therefore, the strength of the claystone must be studied to be used for the slope stability analysis. Shear strength parameters for slope stability analysis were derived from the Triaxial Compression tests. Claystone is a type of sedimentary rock. Therefore, it is necessary to improve the equipment of the triaxial compressio

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Urlaub, Morelia, and Heinrich Villinger. "Combining in situ monitoring using seabed instruments and numerical modelling to assess the transient stability of underwater slopes." Geological Society, London, Special Publications 477, no. 1 (March 6, 2018): 511–21. http://dx.doi.org/10.1144/sp477.8.

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AbstractThe stability of submarine slopes is often characterized using campaign-based geophysical and geotechnical measurements in combination with numerical modelling. However, such one-off measurements do not reflect transient changes in slope stability. In situ monitoring of physical parameters critical for slope stability over periods of months to years can provide crucial information on slope stability and can also be used in an early-warning system for submarine landslides and the possibly resulting tsunamis. We review existing techniques that are capable of monitoring seafloor deformati

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McFall, Brian C., and Hermann M. Fritz. "Physical modelling of tsunamis generated by three-dimensional deformable granular landslides on planar and conical island slopes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2188 (April 2016): 20160052. http://dx.doi.org/10.1098/rspa.2016.0052.

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Tsunamis generated by landslides and volcanic island collapses account for some of the most catastrophic events recorded, yet critically important field data related to the landslide motion and tsunami evolution remain lacking. Landslide-generated tsunami source and propagation scenarios are physically modelled in a three-dimensional tsunami wave basin. A unique pneumatic landslide tsunami generator was deployed to simulate landslides with varying geometry and kinematics. The landslides were generated on a planar hill slope and divergent convex conical hill slope to study lateral hill slope ef

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Faug, Thierry, Mohamed Naaim, and Florence Naaim-Bouvet. "Experimental and numerical study of granular flow and fence interaction." Annals of Glaciology 38 (2004): 135–38. http://dx.doi.org/10.3189/172756404781814870.

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AbstractDense snow avalanches are regarded as dry granular flows. This paper presents experimental and numerical modelling of deposition processes occurring when a gravity-driven granular flow meets a fence. A specific experimental device was set up, and a numerical model based on shallow-water theory and including a deposition model was used. Both tools were used to quantify how the retained volume upstream of the fence is influenced by the channel inclination and the obstacle height. We identified two regimes depending on the slope angle. In the slope-angle range where a steady flow is possi

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Mathiot, P., H. Goosse, T. Fichefet, B. Barnier, and H. Gallée. "Modelling the variability of the Antarctic Slope Current." Ocean Science Discussions 8, no. 1 (January 11, 2011): 1–38. http://dx.doi.org/10.5194/osd-8-1-2011.

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Abstract. One of the main features of the oceanic circulation along Antarctica is the Antarctic Slope Current (ASC). This circumpolar current flows westward and allows communication between the three major basins around Antarctica. The ASC is not very well known due to difficult access and the presence of sea ice during several months, allowing in situ study only during summertime. Moreover, only few numerical studies of this current have been carried out. Here, we investigate the sensitivity of this current to two different atmospheric forcing sets and to four different resolutions in a coupl

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Rouainia, M., O. Davies, T. O'Brien, and S. Glendinning. "Numerical modelling of climate effects on slope stability." Proceedings of the Institution of Civil Engineers - Engineering Sustainability 162, no. 2 (June 2009): 81–89. http://dx.doi.org/10.1680/ensu.2009.162.2.81.

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Zhao, Xiaoyan, Rodrigo Salgado, and Monica Prezzi. "Centrifuge modelling of combined anchors for slope stability." Proceedings of the Institution of Civil Engineers - Geotechnical Engineering 167, no. 4 (August 2014): 357–70. http://dx.doi.org/10.1680/geng.12.00076.

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Keim, Richard F., and Arne E. Skaugset. "Modelling effects of forest canopies on slope stability." Hydrological Processes 17, no. 7 (2003): 1457–67. http://dx.doi.org/10.1002/hyp.5121.

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Hales, Tristram C. "Modelling biome-scale root reinforcement and slope stability." Earth Surface Processes and Landforms 43, no. 10 (April 20, 2018): 2157–66. http://dx.doi.org/10.1002/esp.4381.

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Bhandari, Tushar, Fursan Hamad, Christian Moormann, K. G. Sharma, and Bernhard Westrich. "Numerical modelling of seismic slope failure using MPM." Computers and Geotechnics 75 (May 2016): 126–34. http://dx.doi.org/10.1016/j.compgeo.2016.01.017.

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Teme, S. Clifford. "A kinematic modelling machine for rock slope studies." International Journal of Mining and Geological Engineering 5, no. 1 (March 1987): 75–81. http://dx.doi.org/10.1007/bf01553533.

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Tan, Mengxi, and Sai K. Vanapalli. "Performance estimation of a shallow foundation on an unsaturated expansive soil slope subjected to rainfall infiltration." MATEC Web of Conferences 337 (2021): 03009. http://dx.doi.org/10.1051/matecconf/202133703009.

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In the last two decades, there has been a significant increase in infrastructure development on slopes of hilly regions of the world, due to population growth. There are many infrastructures on unsaturated expansive slopes, especially in semi-arid and arid regions. Rainfall infiltration is one of the major factors that contributes to the slope and infrastructure foundations failures on hilly slopes with unsaturated expansive soils. In the current study, a rational approach is proposed considering the combined influence of the foundation-slope behavior based on the principles of unsaturated soi

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Sonnenberg, R., M. F. Bransby, A. G. Bengough, P. D. Hallett, and M. C. R. Davies. "Centrifuge modelling of soil slopes containing model plant roots." Canadian Geotechnical Journal 49, no. 1 (January 2012): 1–17. http://dx.doi.org/10.1139/t11-081.

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A series of centrifuge model tests were conducted to investigate the contribution of root reinforcement to slope stability. A compacted sandy clay slope, inclined at 45°, was reinforced with model roots. The model roots were varied in material, architecture, and numbers. They had stiffness values corresponding to upper and lower values found for plant roots. The architecture included taproots and branched roots. Slope collapse was triggered by raising the water table while soil displacements, pore-water pressures, and root strains were measured. The mode of failure was changed by the presence

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Pritchard, M. A., and K. W. Savigny. "Numerical modelling of toppling." Canadian Geotechnical Journal 27, no. 6 (December 1, 1990): 823–34. http://dx.doi.org/10.1139/t90-095.

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Evidence of large-scale toppling deformation has been reported in association with deep-seated landslides affecting mountain slopes along the Beaver River valley, Glacier National Park, British Columbia, Canada. A study has been undertaken to quantitatively investigate the relationship between the toppling mass movement process and the deep-seated landslides; specifically, whether the landslides represent a limiting condition of the toppling process. This is the first of two papers that describe the study. Methods of toppling analysis, including limit-equilibrium, finite-element, and distinct-

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Conceição, Murilo Pereira da Silva, Camilla Maria Torres Pinto, Fernando Antonio Leite Vieira Lima, and Sandro Lemos Machado. "Influence of soil-atmosphere interactions and unsaturated soil properties on slope stability." MATEC Web of Conferences 337 (2021): 03019. http://dx.doi.org/10.1051/matecconf/202133703019.

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Results of coupled slope stability analysis performed on two urban slopes in Salvador-BA, considering suction variations due to soil-atmosphere interactions over the years of 2016 and 2018 are presented. Boundary conditions, unsaturated soil shear strength and hydraulic parameters were determined by surveying the local topography, analysing climatic and hydrological data, and gathering undisturbed soil samples from the slopes. Soil characterization, saturated and suction controlled triaxial tests and permeability, evaporation and soil water retention curve tests were performed. The simulation

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Neugirg, F., A. Kaiser, J. Schmidt, M. Becht, and F. Haas. "Quantification, analysis and modelling of soil erosion on steep slopes using LiDAR and UAV photographs." Proceedings of the International Association of Hydrological Sciences 367 (March 3, 2015): 51–58. http://dx.doi.org/10.5194/piahs-367-51-2015.

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Abstract. Steep hill slopes in the Bavarian Alps and at an artificial waste dump on the Island of Elba are subject to soil erosion through geomorphological processes. Long-term high-resolution terrestrial LiDAR data are available and have been analysed for both areas. The analysis indicated different erosion patterns on the slopes that could be the result of different geomorphological processes. Additionally, both study sites show a good agreement between the annual erosion rates and the size of the hydrological catchment as a proxy for the sediment contributing area. The results presented in

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Maugeri, M., E. Motta, and E. Raciti. "Mathematical modelling of the landslide occurred at Gagliano Castelferrato (Italy)." Natural Hazards and Earth System Sciences 6, no. 1 (February 7, 2006): 133–43. http://dx.doi.org/10.5194/nhess-6-133-2006.

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Abstract. Shallow slopes in clayey colluvial covers are often involved in progressive downhill motion with discontinuous rate of movements, depending on fluctuations in pore-water pressure. In geotechnical engineering research on natural slopes, the main efforts have been concentrated on stability analysis, always with a rigid perfectly plastic body assumption. In case of slow slope movements, however, the notion of stability losses its sense, so the main question is not to evaluate a stability factor, but to model a velocity field and to define the kinematic and dynamic features of the moveme

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Magnin, Florence, Bernd Etzelmüller, Sebastian Westermann, Ketil Isaksen, Paula Hilger, and Reginald L. Hermanns. "Permafrost distribution in steep rock slopes in Norway: measurements, statistical modelling and implications for geomorphological processes." Earth Surface Dynamics 7, no. 4 (October 30, 2019): 1019–40. http://dx.doi.org/10.5194/esurf-7-1019-2019.

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Abstract. Permafrost in steep rock slopes has been increasingly studied since the early 2000s in conjunction with a growing number of rock slope failures, which likely resulted from permafrost degradation. In Norway, rock slope destabilization is a widespread phenomenon and a major source of risk for the population and infrastructure. However, a lack of precise knowledge of the permafrost distribution in steep slopes hinders the assessment of its role in these destabilizations. This study proposes the first nationwide permafrost probability map for the steep slopes of Norway (CryoWall map). It

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Cuomo, Sabatino, and Angela Di Perna. "Coupled hydro-mechanical modelling of a 1995 Hong Kong landslide." E3S Web of Conferences 195 (2020): 01028. http://dx.doi.org/10.1051/e3sconf/202019501028.

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The paper deals with the modelling of the instability mechanism induced by rainfall in an unsaturated cut-slope. A large-sized landslide occurred in 1995 in Hong Kong (the so-called “Fei Tsui Road landslide”). It was here analysed because it was characterized by unusual dimensions and very large runout distance for the study area. The slope failure was attributed to a decrease in soil shear strength due to the rise of a perched water table above a weak kaolin-rich layer, together with the loss of suction caused by water infiltration during a heavy rainfall event. The hydro-mechanical coupled a

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Wicky, Jonas, and Christian Hauck. "Numerical modelling of convective heat transport by air flow in permafrost talus slopes." Cryosphere 11, no. 3 (June 6, 2017): 1311–25. http://dx.doi.org/10.5194/tc-11-1311-2017.

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Abstract. Talus slopes are a widespread geomorphic feature in the Alps. Due to their high porosity a gravity-driven internal air circulation can be established which is forced by the gradient between external (air) and internal (talus) temperature. The thermal regime is different from the surrounding environment, leading to the occurrence of permafrost below the typical permafrost zone. This phenomenon has mainly been analysed by field studies and only few explicit numerical modelling studies exist. Numerical simulations of permafrost sometimes use parameterisations for the effects of convecti

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Boyd, Jimmy, Jonathan Chambers, Paul Wilkinson, Maria Peppa, Arnaud Watlet, Matt Kirkham, Lee Jones, et al. "A linked geomorphological and geophysical modelling methodology applied to an active landslide." Landslides 18, no. 8 (May 5, 2021): 2689–704. http://dx.doi.org/10.1007/s10346-021-01666-w.

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AbstractMoisture-induced landslides are a global geohazard; mitigating the risk posed by landslides requires an understanding of the hydrological and geological conditions present within a given slope. Recently, numerous geophysical studies have been attempted to characterise slow-moving landslides, with an emphasis on developing geoelectrical methods as a hydrological monitoring tool. However, landslides pose specific challenges for processing geoelectrical data in long-term monitoring contexts as the sensor arrays can move with slope movements. Here we present an approach for processing long

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Liu, Naian, Jinmo Wu, Haixiang Chen, Xiaodong Xie, Linhe Zhang, Bin Yao, Jiping Zhu, and Yanlong Shan. "Effect of slope on spread of a linear flame front over a pine needle fuel bed: experiments and modelling." International Journal of Wildland Fire 23, no. 8 (2014): 1087. http://dx.doi.org/10.1071/wf12189.

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This paper experimentally evaluates the effect of slope on spread of a linear flame front over a pine needle fuel bed in still air. The slope angle of the fuel bed varied from 0 to 32°. The fuel mass consumption in flaming fire spread, temperature over the fuel bed, velocities of the flow around the flame front and heat fluxes (total and radiant) near the end of the fuel bed were measured. The mass loss rate and rate of fire spread both increased with increasing slope, whereas the fuel consumption efficiency varied in the opposite way. It was shown that a weak reverse inflow and an upslope win

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Görög, P., and Á. Török. "Slope stability assessment of weathered clay by using field data and computer modelling: a case study from Budapest." Natural Hazards and Earth System Sciences 7, no. 3 (June 15, 2007): 417–22. http://dx.doi.org/10.5194/nhess-7-417-2007.

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Abstract. A future development site of a housing estate, an abandoned-brick yard with clayey slopes was studied in details to assess slope stability and to calculate the factor of safety. The Oligocene clay, the former raw material, is divided into two different geotechnical units in the clay pit. The lower one consists of grey impermeable clays while the upper unit is characterised by yellowish weathered clay having a limited permeability. At some localities the topmost weathered clay layers are covered by loess, and slope debris. Parts of the former pit were also used as a landfill site. The

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Prokurov, Maxim, Alexander Indykin, and Anatoly Alekseytsev. "Increasing the reliability of the soil slopes design using evolutionary modelling." MATEC Web of Conferences 251 (2018): 04017. http://dx.doi.org/10.1051/matecconf/201825104017.

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An issue has been discussed on determining the best value of quadrangular trench slopes, grade considering the provision of reliability for soil steady position in minimizing the quantity of the necessary earthworks. The calculation algorithm has been described including the determination of stability coefficient for a soil slope being in the ultimate rock equilibrium condition. The task is completed via the method of circular-cylindrical revolving surfaces using the genetic algorithm.

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Kogut, Janusz P. "Landslide formation modelling and surveying of the slope in unsaturated and saturated ground conditions." E3S Web of Conferences 133 (2019): 01010. http://dx.doi.org/10.1051/e3sconf/201913301010.

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The terrestrial laser scanner enables site remote sensing of the slopes in a simple and automated manner. Regular measurements with multiple scanner positioning might be applied in long term landslide monitoring. A detailed geological structural model allows for hazard assessment, and then for a slope stability assessment. Numerical model, along with the subsoil parameters, introduced into the Finite Element Method (FEM) software enables an estimation of landslide susceptibility and the possible displacements of the terrain in longer period of time, as well as, due to different loading cases.

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Shameem, B. M., and V. Anantha Subramanian. "Sea wave modelling for motion control applications." Journal of Naval Architecture and Marine Engineering 11, no. 1 (June 22, 2014): 29–38. http://dx.doi.org/10.3329/jname.v11i1.17768.

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The modelling of sea environment is important in designing an effective motion control system for any marine vehicle. Inadequate representation of the components of a typical random sea might lead to poor performance of the control system. A multiple output system such as the one having components of wave elevation and slope, facilitates designing the control system taking into account the different degrees of freedom. The method of modelling the sea environment presented here, provides the basis for the design of motion control systems for multiple degree of freedom cases, which give rise to

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Bermes, Andrii. "Morphometric relief features of Kremenets Mountains." Visnyk of the Lviv University. Series Geography, no. 49 (December 30, 2015): 3–13. http://dx.doi.org/10.30970/vgg.2015.49.8509.

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Geomorphological structure and morphometric features of Kremenets Mountains are determined. The differences in geomorphic structure, morphometric parameters of individual sections of the study area are highlighted. The opportunity of the modelling of morphometric parameters using GIS technologies is considered. Certain regularities in the distribution of morphometric parameters on investigated area are revealed. Morphometric data processing and the construction of a series of morphometric maps using GIS-analysis and spatial modelling for Kremenets Mountains are done. A number of basic morphome

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Naaim-Bouvet, F., M. Naaim, and J. L. Michaux. "Snow fences on slopes at high wind speed: physical modelling in the CSTB cold wind tunnel." Natural Hazards and Earth System Sciences 2, no. 3/4 (December 31, 2002): 137–45. http://dx.doi.org/10.5194/nhess-2-137-2002.

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Abstract. In order to determine the effect of steep slopes on snowdrift generated by snow fences, we have conducted physical modeling experiments in the CSTB (Centre Scientifique et Technique du Bâtiment) cold wind tunnel as part of the European project "Access to Large Facilities". After an overview of previous studies and an accurate description of the drifting snow process inside the experimental chamber, we present the main results obtained. (1) On flat areas, even for high wind speed, the acknowledged results for moderate wind are still valid: the porous snow fence (50%) is the most effic

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Mathiot, P., H. Goosse, T. Fichefet, B. Barnier, and H. Gallée. "Modelling the seasonal variability of the Antarctic Slope Current." Ocean Science 7, no. 4 (July 6, 2011): 455–70. http://dx.doi.org/10.5194/os-7-455-2011.

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Abstract. One of the main features of the oceanic circulation along Antarctica is the Antarctic Slope Current (ASC). This circumpolar current flows westwards and contributes to communication between the three major oceanic basins around Antarctica. The ASC is not very well known due to remote location and the presence of sea ice during several months, allowing in situ studies only during summertime. Moreover, only few modelling studies of this current have been carried out. Here, we investigate the sensitivity of this simulated current to four different resolutions in a coupled ocean-sea ice m

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