›› 2015, Vol. 36 ›› Issue (8): 2352-2360.doi: 10.16285/j.rsm.2015.08.031

• Geotechnical Engineering • Previous Articles     Next Articles

Seepage-stress coupling model of anisotropic rock mass of stratified slope and its engineering application

SHI Wen-hao1, 2, YANG Tian-hong1, 2, YU Qing-lei1, 2, ZHU Xin-ping3, XIAO Ping4   

  1. 1. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, Liaoning 110819, China; 2. College of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning 110819, China; 3. China Coal Technology and Engineering Group Shenyang Institute, Fushun, Liaoning 113122, China; 4. West Open-pit Mine of Fushun Mining Group, Fushun, Liaoning 113001, China
  • Received:2014-10-20 Online:2015-08-11 Published:2018-06-13

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Abstract: Seepage-stress coupling behavior is a hot issue in the field of rock mass seepage in China, which is particularly common in the stratified slope engineering where the groundwater seepage is involved. Considering the anisotropic properties and seepage-stress coupling behaviors of the stratified rock slope, a seepage-stress coupling model of anisotropic rock mass is established on the basis of the equivalent continuum model and Louis empirical equation. Then the model is implemented into COMSOL software. Numerical results show that the model is competent in reflecting the anisotropic deformation properties of stratified rock mass and the heterogeneous and anisotropic behaviours of groundwater seepage. Moreover, this model is applied for the seepage analysis of the cross-section E800 of the south of Fushun west open-pit mine. To compare and analyze the influence of seepage-stress coupling in stratified rock mass, two different models are employed. The results indicate that the water table calculated by the proposed model is in good agreement with the in-situ measurement, and the model has a good prospect in such stratified rock slope engineering.

Key words: stratified slope, anisotropy, seepage-stress coupling, Fushun west open-pit mine, numerical simulation

CLC Number: 

  • TU 42
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