Deformation and Failure Characteristics and Stability of Open-Pit Slopes with Fault Structure
As for the open-pit slope with fault structure,studies on its deformation and failure characteristics were carried out by means of remote sensing images,field investigation and numerical simulation,and its safety factor was also calculated,so as to explore the influence of fault structure on slope stability.Then,based on the analysis of deformation and failure process of slope,the failure rule for open-pit slope with fault structure was discussed.It is found that the landslide hazard occurring on the north slope of the open-pit mine is attributed to an internal factor of fault structure combined with an external factor of unloading by underground mining.Under the combined action of disturbance by underground mining and cutting by F15 fault,a landslide is prone to occur along the fault structure,and then the failure zone will be gradually expanded.The deformation and displacement of upper slope above the F15 fault structure becomes relatively larger,and proceeds towards the eastern bottom along the F15 fault structure.The F15 fault structure changes the deformation and failure trend of the upper part of the northern slope.It is shown that when the safety factor of open-pit slope is 1.45,F15 fault zone is the potential sliding plane,and no larger deformation has occurred along the fault zone of the northern slope.
open-pit slopefault structuredeformation and failure characteristics of slopesafety factornumerical simulationslope stability
万方数据
维普
