The Stability Study On Slope Under The Impact Of Seismic Forces And Groundwater

Our country is the country been, especially in western region there are a large amount of slope, along with the development of society, only in plain area is far from meeting the building boom of human needs, especially the implementation of the western development strategy, which means must deal with good use a lot of slope engineering problems, to the stability of the slope in geotechnical engineering is an important topic of their place, the side slope of the earth environment, geological structure, geotechnical liquid, earthquake force and groundwater with various factors such as the stability of the slope, which is the most significant influence on earthquake force and groundwater these two factors, and most areas in western China strong earthquake zone, seismic activity intensity and frequency high, some mountains and amount of rain or groundwater exist, such environment condition inevitably there are lots of groundwater and seismic force, the role of slope engineering problems related. In view of this, taking a new county han source slope to rely on, using the method of numerical simulation of the slope in the earthquake, and the groundwater seepage field force under the action of stability is analyzed and evaluation.FLAC (Fast Lagrangian Analysis of continua) is in recent years gradually mature and improve up a new numerical analysis method, it absorbed the finite element method suitable for various kinds of material model and the boundary conditions of the rules of the solution are regional continuity with discrete yuan similar advantage, and to overcome the defects of the discrete element, it takes less convenient computer memory on microcomputer solving large-scale engineering problems, because its application condition of the node displacement continuous, suitable for continuous media are large deformation analysis, relative to other confined to small deformation hypothesis analysis method is more suitable for the destruction of the geotechnical engineering. This paper is the main use of slope stability FLAC to simulated and analyzed. Specific research content as follows:(1) analyzes the factors influencing slope stability, the seismic load, geological tectonic background, stratigraphic lithology, slope internal structure, human factors on the stability of the slope influenced, thereby processing, for slope reinforcement design and provide guidance.(2) analysis of slope instability mechanism of destruction, studied in different slope under seismic load, its failure modes and damage in different areas, and, under the situation of underground water level, the stability of the slope in devastated for slope reinforcement and designed to provide some theoretical and technical help.