The Guangba Highway Sections Rainstorm Damaged Mechanism And Stability Studies

The GuangBa highway K92sections affected by the torrential rain, the embankment collapse, retaining wall tilt, slip, bridge pier bit offset, cracking destroyed by disease, resulting in the complete interruption of the traffic.In this thesis, the full use of existing data were collected on the basis of, indicating the period of the damaged sections of the slope engineering geological conditions, the deformation characteristics of the water damage segment and its five districts, water damage section of a typical deformation mechanism, based on limit equilibrium analysis the district stability of the landslide, slope stability and deformation of the damaged section was numerically simulated plaxis finite element method,engineering control measures recommended.This paper studies the storm type landslide rainfall infiltration mechanism and the necessary and sufficient conditions for occurrence of heavy rain-induced landslide drop. Sufficient condition refers to a rainstorm weather conditions, the surface catchment conditions, fissures conditions and drainage facilities such as the failure. The necessary condition is to have the landslide slope structure refers to the geological conditions. On this basis, the focus of two landslide mode, relaxation creep-crack-landslide mode expansion and cracking characteristics-slip surface formed-saturation landslide mode, summed up the two modes. In addition, the mechanism of heavy rain-induced landslide hazard.