Study on Failure Mechanism of Soil–Rock Slope with FDM-DEM Method

A discrete-continuous coupling analysis method based on FLAC2D/PFC2D is established with the help of program’s own FISH language and Socket O/I data transfer interface. According to statistical characteristics mesostructure slope site, computer stochastic simulation used construct model soil–rock mixture in discrete domain. The deformation failure mechanism SRM studied by using coupled method. results show that distribution mesoscopic contact (such as direction force) between soil rock particles inside changes adjusts significantly. Among them, main adjusted most significantly, finally being basically same sliding slope. change internal driving factor for macroscopic adjustment stress state.