Research on the Influence of Shallow Buried Face Mining on Slope Stability
In response to the problem of slope instability caused by underground mining,the characteristics of slope sliding and collapse at different mining positions were studied through numerical simulation,and the distribution patterns of goaf and slope plastic zone were analyzed.The results show that the position of the working face significantly affects the characteristics of slope sliding and collapse.After the mining of the working face,the roof rock layer becomes the main bearing structure of the slope soil.If the working face is located on the sliding side of the slope,it will further increase the sliding space of the slope soil.When the working face is located at the bottom of the slope,the stability of the slope after mining is the highest.When the working face is located at the bottom of the slope,the stability of the slope after mining is the worst.The upper rock layer in the goaf is mainly subjected to mixed tensile and shear failure,while the slope soil is mainly subjected to shear failure.
shallow buried working faceslope stabilitycharacteristics of plastic zoneFLAC3D
NETL
NSTL
万方数据
