The influence of time unit and element size with the numerical result of soil-water-air coupled unsaturated seepage analysis

2014 ◽  
pp. 605-611
Author(s):  
T Mori ◽  
M Kazama ◽  
J Kim ◽  
R Uzuoka
Keyword(s):  
Soil Water ◽  
Seepage Analysis ◽  
Numerical Result ◽  
Element Size ◽  
Unsaturated Seepage

Soil Water Characteristic Curve for a Granite Residual Soil: Experimental and Numerical Results

2011 ◽  
Vol 312-315 ◽  
pp. 1172-1177 ◽  
Author(s):  
A. Topa Gomes ◽  
A. Viana Da Fonseca ◽  
A. Silva Cardoso
Keyword(s):  
Experimental Data ◽  
Soil Water ◽  
Characteristic Curve ◽  
Residual Soil ◽  
Seepage Analysis ◽  
Soil Water Characteristic Curve ◽  
Granite Residual Soil ◽  
Definition Of ◽  
Paper Method ◽  
Geotechnical Problems

The seepage analysis in geotechnical problems, namely in excavations, was typically performed assuming saturated conditions in the ground. It is now know that the flow in the non saturated part of the ground assumes also relevant importance and hence it is vital to characterize its behaviour. The Soil Water Characteristic Curve (SWCC) of the soil is probably the most important parameter in defining this behaviour and particularly for estimating the permeability of the soil. This paper presents the definition of the SWCC for a granite residual soil using pressure plates and the filter paper method. Based on experimental data some equations are adjusted and the results obtained are discussed. At the end of the paper some predictions of the non saturated permeability of the ground are also performed.

The Saturated - Unsaturated Seepage Analysis of Hualianshu Landslide on the Condition of Rainfall

2012 ◽  
Vol 594-597 ◽  
pp. 387-390
Author(s):  
Yu Hu ◽  
Qiang Feng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
The Finite Element Method ◽  
Seepage Field ◽  
Landslide Prediction ◽  
Reservoir Water ◽  
Seepage Analysis ◽  
Seepage Theory ◽  
The Impact ◽  
Unsaturated Seepage

With the saturated - unsaturated seepage theory, Hualianshu landslide is seepage numerical simulated by the finite element method .The changes of Hualianshu landslide seepage are subject to the impact of rainfall and reservoir water level's changes.The formation and variation of the slope seepage field under rainfall infiltration have been come to, providing a basis for analysis of slope stability and landslide prediction.

Seepage Analysis for Dashiban Landslide Applied Multi-Day Rainstorm once in Fifty Years

2011 ◽  
Vol 374-377 ◽  
pp. 2493-2496 ◽  
Author(s):  
Qiang Feng
Keyword(s):  
Seepage Analysis ◽  
The Stability ◽  
Unsaturated Seepage

Saturated and unsaturated seepage analysises are given for Dashiban Landslide applied multi-day rainstorm once in fifty years including three day and five day and seven day rainstorm. The impaction of rainstorm on the stability of landslide is discussed.

Seepage Analysis for Dashiban Landslide Applied Multi-Day Rainstorm once in Hundred Years

2011 ◽  
Vol 117-119 ◽  
pp. 443-446 ◽  
Author(s):  
Qiang Feng
Keyword(s):  
Seepage Analysis ◽  
The Stability ◽  
Unsaturated Seepage

Saturated and unsaturated seepage analysises are given for Dashiban Landslide applied multi-day rainstorm once in hundred years including three day and five day and seven day rainstorm. The impaction of rainstorm on the stability of landslide is discussed.

Stability Analysis of Earth Dam under Unsaturated Seepage

2008 ◽  
Vol 33-37 ◽  
pp. 1129-1134
Author(s):  
Zheng Hua Xiao ◽  
Bo Han ◽  
Akenjiang Tuohuti ◽  
Hong Jian Liao
Keyword(s):  
Stability Analysis ◽  
Unsaturated Soil ◽  
Limit Equilibrium ◽  
Earth Dam ◽  
Hydraulic Pressure ◽  
Earth Dams ◽  
Seepage Analysis ◽  
Unknown Quantity ◽  
The Stability ◽  
Unsaturated Seepage

This paper is mainly concerned with the saturated-unsaturated seepage analysis of earth dams based on unsaturated soil theory and the stability analysis of earth dams based on conception of slices. At first, beginning basic seepage theory, thesis introduce the saturated-unsaturated and steady-unsteady seepage differential equation of porous media and the FEM regarding hydraulic pressure head as basic unknown quantity. Then considering the shear strength of unsaturated soil, the method of analysis of general limit equilibrium has been approved and it can be used in the analysis of the stability of saturated-unsaturated slopes. Through an example it is respectively discussed effects of seepage flow when water head is changed in earth dam and the effects of percolation in the stability of the earth dam slope. Some helpful conclusions are gained. This can be making the best of the tow methods and the results can be used in engineering for reference.

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