Rheological mechanism and numerical simulation of stability analysis in a silty slope
Chengmenshan Cooper Mine is an open-pit mine mainly disposing copper-surfer minerals, in which 45％ of ore body is located in lake bed. At the lake bed, 15-30 m thick silty mud is filled, and the bearing capacity of the ground formation is extremely low. During the process of overburden mining and backfill, the alluvium turns into compact and thin under the burden of the backfill. However, due to high moisture content as well as strong rheological property of silt, it will result in failure in stability of the silty slope. The rheological mechanism and stability of silty slope are numerically simulated and analyzed with FLAC3D, and Mohr-Coulomb constitutive model is established and reasonable structure parameters of slope are obtained, which provide a governing law for optimization of open-pit excavation and reinforcement of the slope.
P.J. Yue Z.Y. Tan L. Wang
State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Ministry of Education, Beijing, China School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, China
国际会议
The 2nd ISRM International Young ScholarsSymposium on Rock Mechanics(第二届国际岩石力学青年学者研讨会)
北京
英文
401-404
2011-10-14（万方平台首次上网日期，不代表论文的发表时间）