Stability analysis of unsaturated soil slopes considering water-air flow caused by rainfall infiltration

2016 ◽  
Vol 211 ◽  
pp. 184-197 ◽  
Author(s):  
Sung Eun Cho
Keyword(s):  
Stability Analysis ◽  
Unsaturated Soil ◽  
Air Flow ◽  
Rainfall Infiltration ◽  
Soil Slopes

scholarly journals Numerical Analysis of Unsaturated Soil Slopes under Rainfall Infiltration Based on the Modified Glasgow Coupled Model

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Guoqing Cai ◽  
Mengzi Li ◽  
Bowen Han ◽  
Kenan Di ◽  
Qianqian Liu ◽  
...  
Keyword(s):  
Unsaturated Soil ◽  
Fluid Velocity ◽  
Coupled Model ◽  
Rainfall Infiltration ◽  
Secondary Development ◽  
Infiltration Process ◽  
Integration Algorithm ◽  
Soil Slopes ◽  
Implicit Integration Algorithm ◽  
Numerical Program

An ABAQUS UMAT subroutine was used for the secondary development of the established coupled hydromechanical constitutive model of unsaturated soil considering the effect of the microscopic pore structure. Combined with Euler’s backward implicit integration algorithm, a numerical program was established for simulating the proposed model. The developed numerical program was used to simulate the rainfall infiltration process of an actual slope engineering example, and the effects of rainfall intensity and rainfall duration on the pore pressure, fluid velocity, and displacement of the unsaturated soil slope were analyzed. The results show that the developed numerical program can reasonably analyze the changes in the seepage field and displacement field of unsaturated soil slopes under rainfall infiltration.

Stability analysis of an unsaturated soil slope considering rainfall infiltration based on the Green-Ampt model

2020 ◽  
Vol 17 (10) ◽  
pp. 2577-2590
Author(s):  
Zi-zhen Liu ◽  
Zhi-xin Yan ◽  
Zhan-hong Qiu ◽  
Xiao-gang Wang ◽  
Ji-wei Li
Keyword(s):  
Stability Analysis ◽  
Unsaturated Soil ◽  
Rainfall Infiltration ◽  
Soil Slope
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