Study on deformation law of normal fault and slope stability under the action of mining-seepage
WEI Yonghao
WANG Zhenwei
LI Bin
WANG Zhitao
LI Yuanhao
GONG Qixiang
Abstract：In order to study the fault deformation law under the combined action of mining disturbance and groundwater,this article uses FLAC3D to establish a numerical model of slope with faults.By setting different excavation depths and groundwater extraction depths,the article explores the change characteristics of fault and slope displacement field and seepage field under the coupling action of mining and seepage flow.The results show that with the increase of mining depth,the maximum displacement of fault in X direction gradually increases.The main failure mode of the fault is tension fracture.With the development of mining and extraction,the distribution form of stress concentration changes from scattered point to linear distribution.The fault develops from discontinuous failure to through failure.With the deepening of mining,the range of plastic zone increases gradually.Affected by mining and groundwater seepage,the stability of the slope gradually decreases.Under the condition of groundwater,the overall stability coefficient of the slope decreases by 1.34%.
Keywords：slope stabilityfaultseepage fieldslipping modenumerical simulation
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 21-25 )