The Three-Dimension Saturated-Unsaturated Seepage Analysis Under Atomized Rain Of Hydropower Project With High Slope

Author(s):  
Huan-Ling Wang ◽  
Wei-Ya Xu
2012 ◽  
Vol 594-597 ◽  
pp. 387-390
Author(s):  
Yu Hu ◽  
Qiang Feng

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.


2011 ◽  
Vol 374-377 ◽  
pp. 2493-2496 ◽  
Author(s):  
Qiang Feng

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.


2012 ◽  
Vol 468-471 ◽  
pp. 2433-2436
Author(s):  
Wen Ting Zhan ◽  
Qing Xu

The study is conducted for the 3-D seepage field analysis and the seepage control measurements optimization of a hydropower project, which is located in Sichuan Province, China. The seepage control measurements are introduced in this paper. An equivalent method is adopted to simulate drainage holes and the approach of determining equivalent permeability coefficient is presented. The 3-D seepage field with seepage control system is analyzed comprehensively by the water head contours, uplift on the dam foundation, and so on. The necessities of setting the grouting curtain and the drainage holes are discussed respectively. Further the optimal design of the grouting curting and drainage holes of the dam foundation is studied. The results show that special attention should be paid to ensure the well-operation of the seepage control system and the optimization of decreasing the depth of the drainage curtains and grouting curtains properly can be considered.


2011 ◽  
Vol 94-96 ◽  
pp. 460-463
Author(s):  
Jian Jun Yuan ◽  
Chuan Liang

Taking the example of the high slope treatment of JINPIN Hydropower Station of YA LONG River, in this paper the basic requirement,construction feature and forcing characteristic of the fastener steel-pile scaffold were introduced in detail, the scaffold setting up method of the working platform in slope treatment are designed, and the loading analysis, checking computation of the strength, rigidity and stability of primary members were making. At last, this paper adopted corresponding construction measure as per the uncertain factors. This paper can provide the design basis and reference for the similar scaffold engineering by the practice of this project.


2011 ◽  
Vol 117-119 ◽  
pp. 443-446 ◽  
Author(s):  
Qiang Feng

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.


2008 ◽  
Vol 33-37 ◽  
pp. 1129-1134
Author(s):  
Zheng Hua Xiao ◽  
Bo Han ◽  
Akenjiang Tuohuti ◽  
Hong Jian Liao

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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