Stability analysis of an unsaturated clay slope based on the coupled effect of temperature and saturation

Liu, Zizhen; Wang, Xiaogang; Yin, Yueping; Li, Jiwei; Shao, Guotao

doi:10.1144/qjegh2021-009

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…By analyzing the physical quantities individually at each point in time, a comprehensive understanding of variations in slope stability can be obtained, thereby improving the predictions of potential geological hazard risks. There are previous studies in the literature on clay slopes subjected to thermal effects [59]. In this study, similar trends as well as results were obtained for different studied soils.…”

Section: Coupled Hydro-mechanical Framework-transient Simulation Resultssupporting

confidence: 89%

Environmental Temperature Effect on Hydraulic Behavior and Stability of Shallow Slopes

et al. 2023

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This study established a study framework to quantify the safety factors of unsaturated shallow slopes at different temperatures. This study is based on a non-isothermal soil water characteristic curve model quantifying the temperature-dependent hydraulic properties of soils. The hydraulic coupling analysis models HYDRUS 2D and The Slope Cube Module were used for finite element modeling. A slope stability analysis was performed based on the local factor of safety (LFS) theory. An increased temperature decreased the soil matric suction, suction stress, effective stress, and LFS, weakening the soil strength. Slope modeling analysis showed that soils were dominated by different water retention mechanisms before and after rainfall infiltration, and the trends caused by temperature changes also changed accordingly. This study provides insights into the relationship between soil mechanical properties and temperature, which is valuable for maintaining soil stability and preventing geological hazards.

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Section: Coupled Hydro-mechanical Framework-transient Simulation Resultssupporting

confidence: 89%

Environmental Temperature Effect on Hydraulic Behavior and Stability of Shallow Slopes

et al. 2023

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“…In some circumstances, the existence of an underground aquifer supplied by an upstream hydraulic recharge area may be a risk issue for such activity, as it is responsible for deep piezometric heads that can fluctuate seasonally [17]. Many researches have examined the mechanism of the influence of temperature and saturation on unsaturated clay slope stability in light of clay slope instability induced by ambient temperature and rainfall infiltration in summer and autumn [18,19]. The slope's factor of safety may be calculated by gradually diminishing the soil shear strength until the slope fails.…”

Section: Slope Stabilitymentioning

confidence: 99%

Slope Reinforcement Model Scale Test With X-Block

et al. 2022

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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 with a FC of 25 MPa. The X-block was divided into two types: X-block type 1 and X-block type 2. Tensile strength testing is performed on the X-block. The slopes are made of clay soil and have a slope angle of 70 degrees. The loading test was conducted in three stages: without block, with X-block type 1, and with X-block type 2. The loading test uses a hydraulic pump equipped with a load cell and LVDT. The tensile strength of X-block type 1 is 2.56 MPa, whereas X-block type 2 has a tensile strength of 4.35 MPa. The development of the type X-block design, which is used as a retaining wall material, has shown that it can effectively withstand landslides on the slopes under consideration. The slope safety factor rose dramatically after being reinforced with type X-blocks, reaching 2.73 for both X-block type 1 and X-block type 2. Doi: 10.28991/CEJ-2022-08-03-014 Full Text: PDF

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Seismic Stability Analysis of Partially Saturated Slope Reinforced with Pervious Anti-slide Piles Subjected to Repeated Shaking Using Shaking Table Tests

Kumar¹,

Jeeva²,

P³

et al. 2023

Lecture Notes in Civil Engineering

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Stability analysis of an unsaturated clay slope based on the coupled effect of temperature and saturation

Cited by 3 publications

References 29 publications

Environmental Temperature Effect on Hydraulic Behavior and Stability of Shallow Slopes

Environmental Temperature Effect on Hydraulic Behavior and Stability of Shallow Slopes

Slope Reinforcement Model Scale Test With X-Block

Seismic Stability Analysis of Partially Saturated Slope Reinforced with Pervious Anti-slide Piles Subjected to Repeated Shaking Using Shaking Table Tests

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