The influence of base inclination on slope deformation of inner dump under rainfall infiltration
WANG Zhenwei
LI Yuanhao
WEI Yonghao
HUANG Kewei
JIANG Haitao
CHENG Yao
Abstract：In order to study the influence of basement inclination on the stability of the dump slope under rainfall conditions,accord-ing to the actual situation of Antaibao Open-pit Coal Mine,FLAC3D software was used to simulate the slope of the dump under the same rain intensity and different base inclination angles.The results show that in the early stage of rainfall,the saturation of the sur-face layer of the dump slope first grows rapidly and tends to the stable value of unsaturation,and when the rainfall infiltrates to the junction of the weak layer and bedrock,the rainwater accumulates at the slope angle under the action of gravity and leads to shear failure at the slope angle.With the increase of the basement inclination,the time lag effect occurred in each monitoring point when it reached saturation or steady state,and the displacement and strain increment were positively correlated with the substrate inclination.
Keywords：inner dumpslope deformationslope stabilityFLAC3Dfluid-solid couplingrainfall infiltration effect
Publication Date：2024-06-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 169-175 )