Two-phase Seepage Analysis in Unsaturated Rock and Soil Slope during Rainfall

2010 ◽  
Author(s):  
X. L. Huang ◽  
J. Xiong ◽  
J. J. Liu ◽  
Liejin Guo ◽  
D. D. Joseph ◽  
...  
Keyword(s):  
Soil Slope ◽  
Two Phase ◽  
Seepage Analysis ◽  
Rock And Soil

Stability Analysis of Soil Slope and the Design of Anti-Slide Piles during Unsteady Seepage

2012 ◽  
Vol 204-208 ◽  
pp. 689-693
Author(s):  
Yong Quan Li ◽  
Hang Jing ◽  
Qing Huan Wang ◽  
Jun Fu Chen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Engineering Practice ◽  
Soil Slope ◽  
Safety Factors ◽  
Seepage Analysis ◽  
Slip Surfaces ◽  
Earth Pressures

Principle of calculation of water and earth pressures together by Limit Equilibrium Method (LEM) is introduced, and coupled deformation and seepage analysis is conducted by Finite Element Method (FEM ).The response of one soil slope is simulated during rapid drawdown of water level by LEM and FEM. The results calculated show that seepage upraises the critical slip surfaces, and critical slip surfaces and safety factors by two ways are pretty close. To assure the safety of the slope, the design of anti-slide piles is carried out. Those ways used may provide reference to engineering practice.

scholarly journals A Study on Soil Slope Stability Design Considering Seepage Analysis

2013 ◽  
Vol 29 (1) ◽  
pp. 135-147 ◽  
Author(s):  
You-Seong Kim ◽  
Jae-Hong Kim ◽  
Jin-Kwang Lee ◽  
Seong-Soo Kim
Keyword(s):  
Slope Stability ◽  
Soil Slope ◽  
Seepage Analysis

scholarly journals Rock-soil slope stability analysis by two-phase random media and finite elements

2018 ◽  
Vol 9 (6) ◽  
pp. 1649-1655 ◽  
Author(s):  
Yong Liu ◽  
Huawen Xiao ◽  
Kai Yao ◽  
Jun Hu ◽  
Hong Wei
Keyword(s):  
Stability Analysis ◽  
Finite Elements ◽  
Slope Stability ◽  
Random Media ◽  
Slope Stability Analysis ◽  
Soil Slope ◽  
Two Phase

Isolation Mechanism and Method for Buried Segmental Pipeline under Earhquake-Induced Large Displacement

2011 ◽  
Vol 99-100 ◽  
pp. 410-413
Author(s):  
Ai Ping Tang ◽  
Ai Hua Wen ◽  
Li Hua Gai ◽  
Ru Hong Zhong
Keyword(s):  
Slope Failure ◽  
Soil Types ◽  
Response Analysis ◽  
Buried Pipeline ◽  
Soil Slope ◽  
Seismic Response Analysis ◽  
Ground Displacement ◽  
Isolation System ◽  
Reliable Isolation ◽  
Rock And Soil

This paper deals with an isolation design methods of buried segment pipeline for large ground displacement in earthquake. The buried pipeline is always damaged due to the strong shaking and earthquake-induced large or permant ground displacement and deformation (PGD), including liquefaction, rock and soil slope failure, fault and fissure. Based on the seismic response analysis for buried segment pipeline, the isolation mechanism and an equipment for resisting ground displacement trigged by liquefaction and fault is presented in this paper. Some related parameters to isolation system like stiffness and damp of isolator, soil types and its displacement, depth of pipeline, are discussed for developing a reliable isolation system fitting the buried segment pipeline.

Research on the Mechanism of Progressive Slope Evolution and its Failure Criterion

2013 ◽  
Vol 864-867 ◽  
pp. 765-770 ◽  
Author(s):  
Wei Shui Fei ◽  
Cong Ling Zhang ◽  
Zhi Qiang Wu
Keyword(s):  
Stress State ◽  
Failure Criterion ◽  
Slope Failure ◽  
Failure Process ◽  
Soil Slope ◽  
Unstable Failure ◽  
Total Failure ◽  
Slice Method ◽  
Rock And Soil ◽  
Sliding Zone

The unstable failure of rock and soil slope was a progressive evolution process from local failure to total failure. The no-uniformity of rock and soil materials and differences of boundary conditions caused the discrepancy of stress field, together with the elastic-plastic characteristics of the sliding zone which controls the progressive unstable failure process. In this paper, any point of slop sliding zone was taken for the research object. On basis of limit slice method, the mechanical condition of slice was considered as a plane strain problem. According to Mohr-Coulomb linear failure criterion the stress state of a point is obtained with selecting stress function to establish the mechanical criterion of progressive slope failure. The analysis of engineering example shows that the mechanical criterion is reasonable to estimate the state of progressive slope evolution.

Numerical Calculation of Micro-Plie in Slope Engineering

2014 ◽  
Vol 644-650 ◽  
pp. 5113-5120
Author(s):  
Xiao Song Tang ◽  
Jian Ping Xin ◽  
Ying Ren Zheng
Keyword(s):  
Shear Failure ◽  
Bending Moment ◽  
Soil Mass ◽  
Calculation Model ◽  
Plastic State ◽  
Soil Slope ◽  
Structural Element ◽  
Deformation And Failure ◽  
Pile Deformation ◽  
Rock And Soil

In order to conduct the numerical simulation of rock and soil slope strengthened by the micro-pile with reinforced bar, FEM strength reduction is combined with the program of FLAC which possesses the function of analyzing tensile and shear failure. The micro-pile is under plastic state due to its mechanic features. Solid element and ideal elastic-plastic constitutive model of Mohr-Coulomb are applied as the rock and soil mass and pile. The calculation model can work out the safety factor of slope, the dynamic changing process of pile deformation and failure, the failure mode of slope after strengthened by micro-pile. Then the structural element of pile is used to simulate piles, which can obtain the bending moment and shear force. The beam element is used to simulate the coupling beam. So the layout principle of inner force before the failure can be calculated.

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