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Journal articles on the topic 'Slopes (Soil mechanics)'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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1

Zhang, Hong, Bang Zhang, Can Wu, and Kun Chen. "Macro and micro analysis on coal-bearing soil slopes instability based on CFD-DEM coupling method." PLOS ONE 16, no. 9 (September 17, 2021): e0257362. http://dx.doi.org/10.1371/journal.pone.0257362.

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By combining the discrete element method (DEM) with computational fluid dynamics (CFD), this study proposes a three-dimensional CFD–DEM fluid–solid coupling microscopic computational model for analyzing the micromechanisms of instability and failure in a coal-bearing soil slope during rainfall. The CFD–DEM fluid–solid coupling model indicated that the main failure mode of the coal-bearing soil slopes was rainwater washing, and the slope sliding surface was predicted as an approximately linear segment. The adaptability of this numerical method was verified by comparing its results with those of

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2

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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3

Chen, Bozhou, Wei Shui, Yuanmeng Liu, and Ruyue Deng. "Analysis of Slope Stability with Different Vegetation Types under the Influence of Rainfall." Forests 14, no. 9 (September 13, 2023): 1865. http://dx.doi.org/10.3390/f14091865.

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Rainfall-prone shallow landslides account for one-fifth of the global land area, and rainfall is critical to the mechanics and hydrology of shallow slopes. In typical geological disaster-prone areas, the hydrodynamic responses of slopes with different vegetation types under rainfall conditions require further study. The purpose of this study was to analyze the hydraulic stability of soils with different vegetation types under rainfall conditions and their effects on slope stability. Thus, the soil–water characteristic curves and water-stable aggregate characteristics of soils with three vegeta

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4

Ma, Kuo-Chen, Yong-Jun Lin, Shyh-Yuan Maa, and Yih-Chi Tan. "Evaluation of the effect of hysteretic flow and root system on shallow landslide." Soil Research 50, no. 7 (2012): 616. http://dx.doi.org/10.1071/sr12104.

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This paper analyses the mechanics of slope stability with regard to the hysteretic flow of unsaturated soil and the root system of the covering vegetation. The hysteresis of the soil water retention curves and root strength are important factors in the evaluation of unsaturated shear strength. Engineers should consider how the transportation of the soil water content and the plant root strength influence evaluation of surficial slope stability analysis. The integrated slope stability analysis considering the hysteretic flow and root strength were calculated on variations of the safety factor (

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5

Darban, Reza, Emilia Damiano, Aldo Minardo, Lucio Olivares, Luciano Picarelli, and Luigi Zeni. "An Experimental Investigation on the Progressive Failure of Unsaturated Granular Slopes." Geosciences 9, no. 2 (January 29, 2019): 63. http://dx.doi.org/10.3390/geosciences9020063.

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Slope failure is a complex process which depends on several factors concerning nature and properties of soil, slope morphology and structure, past stress history, groundwater regime, boundary conditions, and their changes. As a consequence, the mechanism of slope failure is typically characterized by the development of a highly non-uniform strain field, which does not allow an easy prediction of the failure conditions. Usually, the process which will bring the slope to final collapse starts with local soil failure, which then leads to formation and propagation of a shear zone, and finally to g

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Hunter, Gavan, and Robin Fell. "Travel distance angle for "rapid" landslides in constructed and natural soil slopes." Canadian Geotechnical Journal 40, no. 6 (December 1, 2003): 1123–41. http://dx.doi.org/10.1139/t03-061.

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"Rapid" landslides in constructed and natural soil slopes have the potential to cause loss of life, destruction of property, and damage to the natural environment because the velocity of the slide mass is such that persons in the travel path do not have time to evacuate and the kinetic energy is such that even small landslides can severely damage buildings and other structures. This paper presents methods for prediction of the post-failure travel distance for "rapid" landslides from constructed cut and fill slopes and natural soil slopes derived from a database of some 350 "rapid" landslides i

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7

Mburu, Joram Wachira, An-Jui Li, Horn-Da Lin, and Chih-Wei Lu. "Investigations of Unsaturated Slopes Subjected to Rainfall Infiltration Using Numerical Approaches—A Parametric Study and Comparative Review." Sustainability 14, no. 21 (November 3, 2022): 14465. http://dx.doi.org/10.3390/su142114465.

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In the past 30 years, research on rainfall-induced landslides has grown remarkably. The contribution of matric suction to soil strength and the physics of water flow in unsaturated soils are widely accepted phenomena among researchers. However, the adoption of unsaturated soil mechanics in geotechnical engineering practice has been relatively slow, in part due to the practicality of design solutions available to the engineer. This paper conducts a parametric study on unsaturated silty slopes under a vertical steady flow rate to identify the suitable slope and hydrologic conditions to incorpora

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Wang, Lei, Yongsheng Yao, Jue Li, Kefei Liu, and Fei Wu. "A State-of-the-Art Review of Organic Polymer Modifiers for Slope Eco-Engineering." Polymers 15, no. 13 (June 29, 2023): 2878. http://dx.doi.org/10.3390/polym15132878.

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In slope ecological restoration projects, reinforcing soil and promoting vegetation growth are essential measures. Guest soil spraying technology can be used to backfill modified soil and vegetation seeds onto the slope surface, resulting in successful ecological restoration. The use of organic polymer modifiers to reinforce soil has several benefits, such as high strength, effective results, and low pollution levels. Organic polymer soil modifiers can be divided into two categories: synthetic polymer modifiers and biopolymer modifiers. This paper provides a thorough review of the properties a

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9

A. N. Pluhin, L. V. Trikoz, O. S. Herasimenko, A. A. Pluhin, D. A. Pluhin, and Al. A. Pluhin. "The development of some aspects of colloid chemistry and physicochemistry mechanics of disperse systems and materials are used in stability slopes." Science and Transport Progress, no. 39 (December 25, 2011): 150–56. http://dx.doi.org/10.15802/stp2011/6904.

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In the article the motive force of the movement the particles in dispersed systems, which include soils, when load is just sole weight of the array was investigated. It is shown that the shearing force of the weight of the soil and the specific cohesion which taken into account in calculating the stability of slopes of embankments and landslides on the slopes, much less than real. The calculations showed that the electrophoretic mechanism is a very real explanation of the observed sliding the upper part of the slope.

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10

Lade, Poul V. "The mechanics of surficial failure in soil slopes." Engineering Geology 114, no. 1-2 (June 2010): 57–64. http://dx.doi.org/10.1016/j.enggeo.2010.04.003.

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11

Putra, Irza Tri, Guskarnali Guskarnali, and Irvani Irvani. "APLIKASI SOFTWARE GEOSTUDIO 2007 SLOPE/WUNTUK ANALISIS KESTABILAN LERENG DI TAMBANG MUARA TIGA BESAR UTARA PT BUKIT ASAM (PERSERO) Tbk SUMATERA SELATAN." MINERAL 2, no. 2 (January 30, 2020): 78–89. http://dx.doi.org/10.33019/mineral.v2i2.1562.

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PT Bukit Asam (Persero) Tbk is one of the State Owned Enterprises engaged in coal mining. Presente of Mine Muara slopes at Muara Tiga Besar Utara would be harmful to workers and the mechanical vehicle, because the soil/ rock is likely to experience landslides or falling. This study was conducted to determine the value of slope safety factor RKAP 2017 and redesign the slopes with a safe condition. The data used in this study include the value of cohesion (c’) the angle of friction (ϕ’) and density (γ). Retrieval of research data obtained from the test results did not drainage unconsolidated tri

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12

Ghosh, Debayan, Aritra Banerjee, Anand J. Puppala, and Prince Kumar. "Exploring the Influence of Climate Change on Earthen Embankments with Expansive Soil." Geosciences 14, no. 2 (January 30, 2024): 37. http://dx.doi.org/10.3390/geosciences14020037.

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Climate change is known to cause alterations in weather patterns and disturb the natural equilibrium. Changes in climatic conditions lead to increased environmental stress on embankments, which can result in slope failures. Due to wetting–drying cycles, expansive clayey soil often swells and shrinks, and matric suction is a major factor that controls the behavior. Increased temperature accelerates soil evaporation and drying, which can cause desiccation cracks, while precipitation can rapidly reduce soil shear strength. Desiccated slopes on embankments built with such soils can cause surficial

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13

Guo, Yanglin, and Chao Ma. "Elucidating the role of soil hydraulic properties on aspect-dependent landslide initiation." Hydrology and Earth System Sciences 27, no. 8 (April 20, 2023): 1667–82. http://dx.doi.org/10.5194/hess-27-1667-2023.

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Abstract. Aspect-dependent landslide initiation is an interesting finding, and previous studies have attributed this to the mechanical effects of plant roots. In the present study, an overwhelming landslide probability on a south-facing slope over a north-facing slope was found in a localized area with only granite underneath and high cover of Larix kaempferi. These observations cannot be attributed to plant roots but may result from factors related to hillslope hydrology. Differential weathering associated with hillslope hydrology behaviors such as rainfall water storage and leakage, pore wat

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14

Liao, Hong Jian, Cheng Lin Tian, and Hang Zhou Li. "Analysis of Slope Failure Mechanisms Considering Micropile-Soil Interaction." Key Engineering Materials 535-536 (January 2013): 565–68. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.565.

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A large scale model test was carried out in loess slope, in which the stress and deformation characteristics of slopes reinforced with different arrangements of micropiles were studied. The mechanism of the micropile-soil interaction and the reinforcement effect of micropiles in loess slope were analysed. Based on the scale of in-situ loess slope and the physical mechanics parameters of loess soil, a numerical model was established by using finite difference method. For a reasonable arrangement of micropiles in step-shaped slope, the critical slip surfaces were determined considering the influ

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15

Hrushetskiy, Hrushetskiy, Yuriy Pavelchuk, Ihor Babyn, and Oleg Lyashuk. "MODELING OF TECHNOLOGICAL PROCESS OF SOWING GRAIN CROPS BY OPENERS FOR DIRECT SOWING ON SLOPE." ENGINEERING, ENERGY, TRANSPORT AIC, no. 2(117) (August 30, 2022): 34–46. http://dx.doi.org/10.37128/2520-6168-2022-2-4.

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To date, sowing is one of the most urgent tasks, therefore, universal sowing equipment is widely in demand, which should ensure a uniform distribution of the number of plants per unit area to create the same conditions for development. Theoretical studies were carried out using the methods of theoretical mechanics, strength of materials, probability theory, mathematical analysis and modeling. Research is carried out on the basis of numerous implementations of the equations of continuum dynamics in applied engineering calculation programs - CAE systems. The article provides a theoretical analys

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16

Ladanyi, Branko. "Creep of frozen slopes and ice-filled rock joints under temperature variation." Canadian Journal of Civil Engineering 33, no. 6 (June 1, 2006): 719–25. http://dx.doi.org/10.1139/l05-112.

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Owing to climate warming trends, there has been an increasing interest in recent years in the accelerating creep of rock glaciers and frozen slopes. In the field of glaciology, the creep of glaciers has been extensively studied, observed, and analyzed for more than 100 years. Many valuable and detailed theoretical models have been proposed through the years for simulating the creep behavior of glaciers. This synthesis paper has no intention of proposing another one. Its purpose is only to supply to these models a potential geotechnical background, borrowed from the connected fields of frozen g

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17

Hou, Hengjun, Zhengwei Zhu, Bo Wang, and Wenhao Zhou. "A Practical Model Study on the Mechanism of Clay Landslide under Static Loads: From the Perspective of Major Crack–Stress–Displacement." Applied Sciences 12, no. 7 (March 22, 2022): 3224. http://dx.doi.org/10.3390/app12073224.

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Stability assessment of cracked clay slopes has been a research hotspot in geotechnical engineering in recent years. The assessment work should include crack initiation/development and stability evaluation. However, there has been no universal method for predicting crack evolution until now. In addition, scholars have paid little attention to the coupling relationship between the evolution of cracks and the progressive failure process of macroscopic clay slopes and have seldom studied the ubiquitous diagonal cracks in clay slopes. In this work, the stress mechanism for initiation and developme

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18

Karapa, Enos, Tri Harianto, A. B. Muhiddin, and Rita Irmawaty. "Slope Reinforcement Model Scale Test With X-Block." Civil Engineering Journal 8, no. 3 (March 1, 2022): 612–21. http://dx.doi.org/10.28991/cej-2022-08-03-014.

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This study aims to determine the material composition and dimensions of X-block, develop a slope reinforcement model using X-block, evaluate the mechanical behavior of slopes that are reinforced with rock-bound by X-block, and analyze the performance of slope reinforcement using X-block. This research was conducted at Hasanuddin University's soil mechanics and civil engineering structure laboratory. The model scale test was employed in this study. The geometrical speciation of the test box is 150 cm in length, 60 cm in width, and 100 cm in height. The X-block model was produced using concrete

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19

Smith, John Victor. "Interaction of Strength and Stress in High, Steep Rock Slopes." Journal of Geography and Geology 8, no. 1 (January 6, 2016): 14. http://dx.doi.org/10.5539/jgg.v8n1p14.

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The strength of rock mass and the stress in a slope are each complex fields of investigation. They are also intimately related as increasing confining stress makes a rock mass stronger and the strength of a rock mass can limit the magnitude of stress. Whereas these interactions are comparatively well understood for soils, principally through the advances of laboratory soil mechanics, the scale of rock masses, principally the presence of discontinuity surfaces, limits the capacity for laboratory investigation. The interaction of strength and stress in rock slopes is most evident in high, steep

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20

Xiaolei, JI, XU Lanlan, and YANG Guoping. "Influence of Root Morphology on Ecological Slope Protection." E3S Web of Conferences 198 (2020): 04036. http://dx.doi.org/10.1051/e3sconf/202019804036.

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Ecological slope protection is of great importance for preventing the water and soil loss on bare slopes, improving the ecological environment, and realizing the sustainable ecosystem development. The root-soil composite slope consisting of homogenous soil mass and oleander root system was taken as the study object. Based on the mechanics principle of soil reinforcement by roots in ecological slope protection, the influences of the lateral root quantity of plants and included angle between main root and lateral root on the slope protection were investigated via the finite element (FE) software

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21

Francis, S. C. "The Limitations and Interpretation of the “Angle of Repose” in Terms of Soil Mechanics: a Useful Parameter?" Geological Society, London, Engineering Geology Special Publications 2, no. 1 (1986): 235–40. http://dx.doi.org/10.1144/gsl.1986.002.01.43.

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AbstractPrevious workers including Terzaghi (1943), Skempton (1945) and Lambe & Whitman (1979) have suggested that an “angle of repose” of a granular soil is approximately equal to ϕ′cv. Unfortunately a variety of definitions of different angles of repose exist, with up to six different angles having been identified. To minimise further confusion, it is recommended that the term should either be avoided or standardised.Following an evaluation of the variability of repose slopes, the findings of a detailed study of the relationship between this parameter and ϕ′cv for a variety of artificial

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22

Nasiri, Mehran, and Mojtaba Mohamadzade. "Cut slope stability assessment along forest roads using the limit equilibrium approaches and Slide software." Journal of Forest Science 68, No. 5 (May 26, 2022): 182–89. http://dx.doi.org/10.17221/21/2022-jfs.

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Calculating the factor of safety (FS) as slope stability factor is necessary to prevent environmental damage. Therefore, this paper aims to (i) calculate FS using the limit equilibrium approaches and Slide software and (ii) investigate the stability of slopes according to calculated FS (Janbu and Bishop methods) and status of different sites in the study area (Hyrcanian forest of Iran). Six landslides were selected along the forest road by a field survey. Landslide dimensions including length, width, and height were measured using meters. Slope gradients were measured using the Suunto clinomet

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23

Satyanaga, Alfrendo, Martin Wijaya, Qian Zhai, Sung-Woo Moon, Jaan Pu, and Jong R. Kim. "Stability and Consolidation of Sediment Tailings Incorporating Unsaturated Soil Mechanics." Fluids 6, no. 12 (November 24, 2021): 423. http://dx.doi.org/10.3390/fluids6120423.

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Tailing dams are commonly used to safely store tailings without damaging the environment. Sand tailings (also called Sediment tailings) usually have a high water content and hence undergo consolidation during their placement. As the sediment tailings are usually placed above the ground water level, the degree of saturation and permeability of the sediment tailing is associated with the unsaturated condition due to the presence of negative pore-water pressure or suction. Current practices normally focus on the analyses saturated conditions. However, this consolidation process requires the flow

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Al-Badran, Yasir, and Tom Schanz. "Volume change behavior of bentonite-sand mixture under constant suction condition." MATEC Web of Conferences 162 (2018): 01028. http://dx.doi.org/10.1051/matecconf/201816201028.

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The unsaturated state of soil can raise many geotechnical problems upon wetting-drying cycles such as volume change resulting in collapse or swell, change in the shear strength, and change in the hydraulic conductivity. The classical principles of soil mechanics for saturated soil are often not suitable for explaining these phenomena. An experimental work was carried out to study the volume change behavior of Bentonite-Sand mixture under constant suction condition. A mixture of 30% Calcigel bentonite and 70 % Haider sand (30B) were tested in this study. The applied suction was kept constant th

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Theocharis, Alexandros, Ioannis Zevgolis, and Nikolaos Koukouzas. "Numerical analysis of rainfall effects on the slope stability of open pit coal mines." E3S Web of Conferences 382 (2023): 13006. http://dx.doi.org/10.1051/e3sconf/202338213006.

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As the world transitions away from coal, vast areas of closed coal mines and waste dumps must be appropriately reclaimed. One critical element for these areas’ safety is slope stability, given the massive slopes of these mines and dumps. This work examines the effect of extreme rainfall on coal mines’ slopestability by incorporating unsaturated soil mechanics principles in a practical way. Past extreme rainfall events recorded for a Greek lignite mining area were used, and climate projections concluded that this intensity is not expected to change. Then, rainfall infiltration was simulated usi

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M, Sampath Kumar, and Dr Sreedhar M.V.S. "Application of Geo Textiles in Erosion Control – A Review Paper." International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE) 9, no. 8 (August 1, 2022): 28–33. http://dx.doi.org/10.36647/ijermce/09.08.a006.

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Geo textiles are a possible great alternative before vegetation establishes itself, and provides immediate control on soil erosion on different types of slopes. In this study, different geo textiles have been used for better erosion control over different soils. Different structurally modified geomeshes are tested for runoff erosion control, culmination discharge over different types of soils at different slope angles and at different rainfall intensities. Though these geo textile products are in use since a long time, the selection of product is mostly based on the manufacturer’s recommendati

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Chen, Guan-yi, Peng He, Gang Wang, Shang-qu Sun, and Jie Xiao. "Shallow Layer Destruction Law of Expansive Soil Slope under Rainfall and the Application of Geogrid Reinforcement." Geofluids 2021 (July 8, 2021): 1–14. http://dx.doi.org/10.1155/2021/6636894.

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A large number of instability cases and laboratory tests of expansive soil slopes show that its shallow layer destruction happens because of the insufficient shear strength under the usual action of low stress and repeated dry-wet cycles. We can obtain the strength nonlinear distribution law fitted by generalized power function based on a series of shear strength tests of expansive soil considering low stress and can construct the numerical model considering the nonlinear strength distribution by FISH, to realize the shear strength dynamic distribution with the vertical stress. Based on the nu

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Li, Shaoling, Chi Qiu, Jiankun Huang, Xiaoping Guo, Yucun Hu, Al-Shami Qahtan Mugahed, and Jin Tan. "Stability Analysis of a High-Steep Dump Slope under Different Rainfall Conditions." Sustainability 14, no. 18 (September 6, 2022): 11148. http://dx.doi.org/10.3390/su141811148.

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The existing slope stability research, which is based on the fluid–solid coupling theory, is mainly focused on the slopes of central and eastern China. The impact of rainfall on the stability of the dump slope has often been ignored. It is worthwhile to reveal the mechanism of the fluid–solid coupling mechanics of dump slopes in the arid desertification area of northwest China under the maximum precipitation. The method of combining the seepage mechanics theory with the geomechanics theory was adopted. Darcy’s law and the mass conservation law were introduced to derive and establish the fluid–

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Michalowski, Radoslaw L., and Dowon Park. "Three‐dimensional ridge collapse mechanism for narrow soil slopes." International Journal for Numerical and Analytical Methods in Geomechanics 45, no. 13 (June 18, 2021): 1972–87. http://dx.doi.org/10.1002/nag.3251.

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Xiao, Shiguo, Tingju Chen, and Wei Dong Guo. "Bearing capacity of rigid strip footings near soil slopes." Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics 173, no. 4 (December 2020): 173–87. http://dx.doi.org/10.1680/jencm.18.00045.

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McGreal, W. S., and D. Craig. "Mass-movement activity: an illustration of differing responses to groundwater conditions from two sites in Northern Ireland." Irish Geography 10, no. 1 (December 26, 2016): 28–35. http://dx.doi.org/10.55650/igj.1977.851.

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Field investigation of slope failure in north-eastern Ireland, at Kilkeel, Co. Down, and Minnis North, Co. Antrim, suggests that groundwater level is an important factor influencing the incidence of failure. However, the pattern of mass-movement in slopes of glacial origin at Kilkeel compared to the Lias clays of Minnis North implies that different types of mass-movement demonstrate different responses to general groundwater conditions. These observations indicate that the traditional formulas used by geomorphologists for soil mechanics problems may need to be modified with respect to the obse

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Stille, Håkan, Bruce Ashcroft, Conrad Boley, Vincent Labiouse, and Paulo Pinto. "Felsmechanische Planung in der geotechnischen Werkzeugkiste von morgen: Eurocode 7 – Geotechnische Bauwerke: Böschungen, Flachgründungen und Stützkonstruktionen (EN 1997‐3:2024)." Geomechanics and Tunnelling 16, no. 5 (October 2023): 524–35. http://dx.doi.org/10.1002/geot.202300025.

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AbstractThe second generation of Eurocode 7 includes both soil and rock. In addition to the current practice of ground engineering, this document aims at incorporating rock engineering, improving the ease of use, the harmonization of regulations and covering new developments. This paper provides an overview of some of the significant changes to Eurocode 7 in rock engineering design, taking into consideration limit state design, robustness, durability, and reliability. It focuses on the design of slopes, spread foundations, and retaining structures.The clauses focus on soil mechanics, but also

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Operstein, V., and S. Frydman. "The stability of soil slopes stabilised with vegetation." Proceedings of the Institution of Civil Engineers - Ground Improvement 6, no. 4 (January 2002): 163–68. http://dx.doi.org/10.1680/grim.2002.6.4.163.

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Operstein, V., and S. Frydman. "The stability of soil slopes stabilised with vegetation." Ground Improvement 6, no. 4 (December 2002): 163–68. http://dx.doi.org/10.1680/grim.6.4.163.40918.

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Kacimov, A. R., and Yu V. Obnosov. "Analytical Determination of Seeping Soil Slopes of a Constant Exit Gradient." ZAMM 82, no. 6 (June 2002): 363. http://dx.doi.org/10.1002/1521-4001(200206)82:6<363::aid-zamm363>3.0.co;2-5.

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Gan, JianJun, and Y. X. Zhang. "Analysis of Model Tests of Rainfall-Induced Soil Deposit Landslide." Advances in Civil Engineering 2020 (July 22, 2020): 1–13. http://dx.doi.org/10.1155/2020/6431247.

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A large number of deposit landslides are induced by rainfall, and those with different weak layers may be subject to catastrophic failure. This research investigates the rainfall infiltration effect on the stability of deposit landslides with a weak layer at different slope angles. Four rainfall physical model tests were conducted with fixed double penetration artificial rainfall technique and dynamic sensor technologies by using the rainfall test methods as modified in the paper. Deformation and mechanics parameters, as well as water content parameters in the key position in the deposit lands

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Picarelli, L., G. Urciuoli, A. Mandolini, and M. Ramondini. "Softening and instability of natural slopes in highly fissured plastic clay shales." Natural Hazards and Earth System Sciences 6, no. 4 (June 14, 2006): 529–39. http://dx.doi.org/10.5194/nhess-6-529-2006.

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Abstract. Softening is often considered to be the main cause of first-time slides in OC clay, but so far the mechanics of softening has not been satisfactorily explained. Bearing on laboratory data and field observations about landslides in tectonized highly plastic clay shales of Italian Apennines, the paper describes a process of soil weakening that could explain some failures of natural slopes.

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Sabhahit, N., P. K. Basudhar, and Madhira R. Madhav. "A generalized procedure for the optimum design of nailed soil slopes." International Journal for Numerical and Analytical Methods in Geomechanics 19, no. 6 (June 1995): 437–52. http://dx.doi.org/10.1002/nag.1610190605.

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Quinn, P. E., M. S. Diederichs, R. K. Rowe, and D. J. Hutchinson. "Development of progressive failure in sensitive clay slopes." Canadian Geotechnical Journal 49, no. 7 (July 2012): 782–95. http://dx.doi.org/10.1139/t2012-034.

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The development of progressive failure in sensitive clay slopes is analysed using principles from fracture mechanics, where failure stress depends on a material property (toughness) and length of an existing weakness, unlike traditional soil mechanics where failure stress is generally assumed to be only a function of material strength. An existing weakness, or partially developed failure surface, can propagate due to sudden loads, as might be induced by seasonal erosion cycles, small local landslides at a river bank or earthquake shaking. The paper examines the growth of the failure surface ov

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Bulolo, Sam, and Eng Choon Leong. "Modelling shear strength of compacted soils." E3S Web of Conferences 92 (2019): 15007. http://dx.doi.org/10.1051/e3sconf/20199215007.

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Compacted soils constitute most engineering projects such as earth dams, embankments, pavements, and engineered slopes because of their high shear strength and low compressibility. The shear strength of compacted soils is a key soil parameter in the design of earth structures but it is seldom determined correctly due to their unsaturated state. The shear strength of compacted soils can be better evaluated under the framework of unsaturated soil mechanics. Saturated and unsaturated tests were conducted on compacted specimens using conventional direct shear apparatus under constant water content

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Scotto di Santolo, A., A. M. Pellegrino, and A. Evangelista. "Experimental study on the rheological behaviour of debris flow." Natural Hazards and Earth System Sciences 10, no. 12 (December 7, 2010): 2507–14. http://dx.doi.org/10.5194/nhess-10-2507-2010.

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Abstract. A model able to describe all the processes involved in a debris flow can be very complex owing to the sudden changing of the material that turns from solid into liquid state. The two phases of the phenomenon are analysed separately referring to soil mechanics procedures with regard to the trigger phase, and to an equivalent fluid for the post-failure phase. The present paper is devoted to show the experimental results carried out to evaluate the behaviour assumed by a pyroclastic-derived soil during the flow. A traditional fluid tool has been utilized: a standard rotational rheometer

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Kang, Xing-Pei, Ya-Fei Wang, Zhan-Rong Zhang, Hao Xie, and Yun Yang. "3D Limit Equilibrium Stability Analysis of Concave and Convex Slopes Considering Kinematic Constraints." Shock and Vibration 2022 (August 18, 2022): 1–15. http://dx.doi.org/10.1155/2022/1625765.

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In the previous limit equilibrium stability analyses of concave and convex slopes, the kinematic constraints are not considered in the generation of slip surfaces. To tackle this problem, this technical note proposes a method to compute safety factors of concave and convex slopes, combining the simplified Bishop method with an adaptive “point-by-point” technique. Through the adaptive “point-by-point” technique, the failure surfaces of slopes are linked by numerous lines that connect two neighboring discretized points, at which the velocity compatibilities are strictly satisfied. Stress analyse

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Schwarz, M., F. Giadrossich, and D. Cohen. "Modeling root reinforcement using a root-failure Weibull survival function." Hydrology and Earth System Sciences 17, no. 11 (November 6, 2013): 4367–77. http://dx.doi.org/10.5194/hess-17-4367-2013.

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Abstract. Root networks contribute to slope stability through complex interactions with soil that include mechanical compression and tension. Due to the spatial heterogeneity of root distribution and the dynamics of root turnover, the quantification of root reinforcement on steep slopes is challenging and consequently the calculation of slope stability also. Although considerable progress has been made, some important aspects of root mechanics remain neglected. In this study we address specifically the role of root-strength variability on the mechanical behavior of a root bundle. Many factors

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Wang, Long, Wei Hu, De'an Sun, and Lin Li. "3D stability of unsaturated soil slopes with tension cracks under steady infiltrations." International Journal for Numerical and Analytical Methods in Geomechanics 43, no. 6 (January 20, 2019): 1184–206. http://dx.doi.org/10.1002/nag.2889.

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Σφέικος, A., Θ. Στιμάρατζης, A. Κίλιας, and Β. Χρηστάρας. "BEHAVIOR OF PINDOS LIMESTONE DURING HIGH SLOPE EXCAVATION. AN APPROACH TO INTERPRETE AND SIMULATE THE BEHAVIOR OF THE FORMATION USING SLOPE STABILTY ANALYSIS METHODS." Bulletin of the Geological Society of Greece 36, no. 4 (January 1, 2004): 1853. http://dx.doi.org/10.12681/bgsg.16659.

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The Acheloos river diversion project includes also works which improve the condition of the infrastructure network in the area. One of them was the improvement of a section at the Mouzaki - Arta national road. The road is developed through geological formations of the Pindos Zone. In the Argithea area, Karditsa County, it cuts through Cretaceous limestone bearing Calpionella. This formation develops high and steep slopes, over 50 m high. It consists of thin to medium bedded limestone, showing locally chert intercalations, and gradational transition to siliceous limestone. Thin silt or clay lay

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Deepa, V., and B. V. S. Viswanadham. "Centrifuge model tests on soil-nailed slopes subjected to seepage." Proceedings of the Institution of Civil Engineers - Ground Improvement 162, no. 3 (August 2009): 133–44. http://dx.doi.org/10.1680/grim.2009.162.3.133.

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Rahardjo, H., V. A. Santoso, E. C. Leong, Y. S. Ng, C. P. H. Tam, and A. Satyanaga. "Use of recycled crushed concrete and Secudrain in capillary barriers for slope stabilization." Canadian Geotechnical Journal 50, no. 6 (June 2013): 662–73. http://dx.doi.org/10.1139/cgj-2012-0035.

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A capillary barrier is a two-layer cover system having distinct hydraulic properties to minimize water infiltration into the underlying soil by utilizing unsaturated soil mechanics principles. In this study, a capillary barrier system was designed as a cover system for a residual soil slope to maintain stability of the slope by minimizing infiltration during heavy rainfalls in the tropics. The capillary barrier system (CBS) was constructed using fine sand as the fine-grained layer and recycled crushed concrete aggregates as the coarse-grained layer. The coarse-grained layer is commonly constru

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D.N. Sharma, Ziaullah Shareef, and K.K. Sharma. "Soil and Rock Mechanics Investigations for the Assessment of Strata Behaviour of an Opencast Coal Mine." Global Journal of Earth Science and Engineering 2, no. 1 (June 30, 2015): 7–13. http://dx.doi.org/10.15377/2409-5710.2015.02.01.2.

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Abstract: The Singareni Collieries Company Limited (SCCL) planned for deepening the Opencast projects from the present depth of 250m to 400m. For successful operation and forecasting of strata behaviour in pre-mining was recognized. In this direction, SCCL had tie-up with CSIRO, Australia to work jointly, with a lead research provider. As part of these studies, to meet the requirement of generating needy data to conduct Numerical Modelling, extensive program was organized to take up different Physico Mechanical Properties (PMP) tests. In light of this, different tests suggested were taken up i

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Poulos, Harry G. "Design of reinforcing piles to increase slope stability." Canadian Geotechnical Journal 32, no. 5 (October 1, 1995): 808–18. http://dx.doi.org/10.1139/t95-078.

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This paper describes an approach for the design of piles to reinforce slopes, involving three main steps: (1) evaluating the shear force needed to increase the safety factor to the desired value; (2) evaluating the maximum shear force that each pile can provide to resist sliding of the potentially unstable portion of the slope; and (3) selection of the type and number of piles, and the most suitable location of these piles within the slope. For step 1, stability analyses can be used to assess the required additional shear force for stability. Step 2 involves the use of a computer analysis for

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Chen, Jian, Jian-Hua Yin, and C. F. Lee. "Rigid Finite Element Method for Upper Bound Limit Analysis of Soil Slopes Subjected to Pore Water Pressure." Journal of Engineering Mechanics 130, no. 8 (August 2004): 886–93. http://dx.doi.org/10.1061/(asce)0733-9399(2004)130:8(886).

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