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Stability Study of an Expensive Channel Slopewith Fissures due to Rainfall Infiltration
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[1]CEN Weijun,WANG Meng,SHI Conghao,et al.Stability Study of an Expensive Channel Slopewith Fissures due to Rainfall Infiltration[J].Journal of Zhengzhou University (Engineering Science),2014,35(02):10-14.[doi:10.3969/j.issn.1671-6833.2014.02.003]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 35 Number of periods: 2014 02 Page number: 10-14 Column: Public date: 2014-04-30
Title:
Stability Study of an Expensive Channel Slopewith Fissures due to Rainfall Infiltration
Author(s):
CEN Weijun;  WANG Meng;  SHI Conghao;  etc;
1. College of Water Conservaney & Hydrpower Engineering, Hohai University, Nanjing 210098, China; 2. HydroChina Guiy.ang Engineering Corporaion Co.,Ltd., Guiyang 550081, China; 3. Guizhou Survey & Design Reseanh Institute for Water Resources and Hydropower, Guiyang 550002, China; 4. Cchangjiang Survey, Planning, Design and Research Co., lad. , Wuhan430010，China
Keywords:
fissure;  expensive roek channel;  rainfall infiltration;  strength reduetion method with FEM;  channel slope stability
CLC:
-
DOI:
10.3969/j.issn.1671-6833.2014.02.003
Abstract:
The stability of sliding resistanee ealeulation of an expensive rock channel slope due to rainfall infil.tration was eondueted in the middle route of the South.North Water Transfer Projeet. The plane element with.out thickness was proposed to simulate the subtle fissures. The influenee of fissures, rainfall intensity, dura-tion of rainfall and initial matrie suetion on the channel slope seepage field and stability were studied. The re.sults show that the infiltration inereases by the surfaee fissure, which causes worsening of the slope stability.The safety factor will deerease with the inereasing of rainfall duration and intensity. The stability is better forthe initial lower water content of the channel slope.
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