Along with global selleck products climate change and the influence of rainfall and tectonic movements, the mountain is also eroded by river water. In this process, the glacier melts and ice water are generated, and the amounts of rock and soil particles at the slope surface are carried by the movement of ice water; they migrate to the lower part of the slope, and the depth of the rock-soil aggregate increases gradually. In the geological evolution process, the rock-soil aggregate generated by the ice water gradually increased at various stages, resulting in a layered effect. The melting of glaciers and the weathering of rock masses in shallow slopes are two key factors for the rock-soil aggregate.For the plate rock masses in the long geological evolution history, first, the deformation and strength parameters of the rock masses are decreased by the weathering and unloading effects.

Second, the water flow will also impact the plate rock masses. The failure of the rock masses will occur, but these effects are not the main reasons for the toppling failure of the plate rock masses. The key reasons for the toppling failure of plate rock masses are the increasing weight of the upper rock-soil aggregate and the mountain erosion by river water. Also, the stress in the shallow plate rock masses is increased. Combined with the increasing stress and decreasing rock mass mechanics parameters, toppling failure occurs. The fracture of rock block and the dislocation of rock layers are also influenced by several geological stages.

Because the weight of the upper rock-soil aggregate increases, GSK-3 the mountain is eroded by river water, and the weathering and unloading of rock masses are gradual processes. The result is several distinct stages in the toppling failure trace.For the slope stability problem and its impact on the Gushui Hydropower Station, the likelihood of landslide in the rock-soil aggregate is greater than in the toppling failure plate rock masses, and the shallow landslide risk of the rock-soil aggregate is greater than the deep landslide along the joint surface. Table 2 shows an example of shear strength test results for plate basalt and joint surface (triaxial compression experiments are carried out for basalt, and direct shear tests are carried out for joint surface).Table 2An example of shear strength test results for plate basalt and joint surface. As shown in Table 2, the shear strength parameters of basalt and joints are higher, and the landslide probability along the toppling plate rock masses is very low.