Research on deformation law of open-pit mine slopes under the influence of excavation disturbance
FEI Xiaoou
MIAO Haibin
Abstract：In order to explore the deformation and change law of open-pit slope affected by fault fracture zone under excavation dis-turbance,a physical model of open-pit slope excavation was established based on the similarity theory,and physical model simula-tion experiments were carried out under different excavation conditions,considering the influence of formation lithology,fault,ex-cavation and unloading.The results show that the rock mass excavation will lead to the redistribution of rock mass stress,and the near-slope stress changes greatly.The rock mass in the fault tectonic zone shows non-integral movement under the action of excava-tion,and the vertical displacement of the lower wall rock mass is larger than that of the upper wall rock mass,which indicates that the rock mass in this area has a tendency to produce relative dislocation along the fault fracture zone under the action of excavation disturbance and self-gravity of the upper wall rock mass.
Keywords：slope stabilityexcavation unloadingslope deformationlandslideanalogy simulation
Publication Date：2024-08-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 153-158 )