A comparative study of strength reduction and gravity increase methods considering random fields in slope stability analysis

Cecílio, Diogo L.; Garcia, Gian F. N.

doi:10.1007/s40430-022-03859-3

Cited by 1 publication

(1 citation statement)

References 28 publications

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“…Among them, the gravity increase method is to keep the microscopic parameters between the particles unchanged and to destabilise the slope by increasing the gravitational acceleration so that the soil particles are subjected to a force greater than their shear strength (Cecílio, D. L, et al, 2020) [12]. Its slope damage under different freeze-thaw cycle conditions is shown in Fig.…”

Section: Figure 15 Vertical Jointed Slope Modelmentioning

confidence: 99%

Study on the stability of sandy soil slopes under freeze-thaw cycle - A case study of slopes in Zengsheng Township, Fuyu City

Wu,

Lang,

Zhang

et al. 2024

Preprint

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In order to study the damage law of sandy soil slopes in Zengsheng Town, Fuyu City under freeze-thaw cycle conditions, this paper analyses the strength characteristics of sandy soil in the study area under different freeze-thaw cycle conditions by both indoor tests and numerical simulations, and analyses the effects of different water content and different clay content on the stability of sandy soil slopes. The soil samples in the study area were subjected to straight shear test under different freeze-thaw cycle conditions to obtain the strength change rule and calibration of the microscopic parameters according to the experimental results; the discrete element particle flow software was used to simulate the damage characteristics of the slopes under different freeze-thaw cycle conditions and the evolution of the slope damage by artificially removing the soil at the foot of the slope after the landslide. The research results show that:(1) The cohesion of soil samples decreases with the increase of water content;(2) The cohesion of soil samples increases with the increase of clay content, and the cohesion of soil samples gradually decreases with the increase of the number of freeze-thaw cycles, and the higher the clay content, the greater the decrease of cohesion;(3) Failure firstly appeared plastic point near the end point of the fissure at the bottom of the slope, and then tensile fracture occurred and gradually developed upward, and ultimately, the fall-type failure occurred.

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Section: Figure 15 Vertical Jointed Slope Modelmentioning

confidence: 99%