Research On Slope Stability And Anti-sliding Piles

The problem of slope stability has been one of the main engineering geology problems during the construction and circulation of hydraulic structures, and research on slope stability has kept on for a long time. Though there are a lot of irrational assumers in the rigid limited-equilibrium method, it has simple mechanical model and can evaluate the slope stability by a fixed quantity. It has been tested by long-term engineering practice and now accepted widely by engineers. Now it is used mostly to analyze the slope stability in the engineering design.FEM takes the stress-strain property of rock and soil into account. It can dynamicly imitate the failure procession of slope and silp surface. The stress value and deformation value of every point inside the rock and soil. FEM overcomes most of shortings of limited-equilibrium method. The slope stability safety factor is caculated by strength reduction FEM. At the same time the most dangerous slip surface is presented according to the plastic zone graph.Anti-sliding pile is used extensively in the measures of landslide treatment as a landslide treatment inengineering measure. Many assumptions that the traditional theories adopted all avoided the overall analysis of the pile-soil interaction in the different degree. They take the landslide body and the anti-slide pile into account respectively and have no problem that resolves the pile-soil interaction's mechanics mechanism thoroughly. In this paper a new internal forces analysis method of anti-sliding pile is put forward. It can take the landslide body and the anti-slide pile into account as a whole, also it can consider exactly the interaction between the landslide and the anti-sliding pile.To estimate the stability of slope in Nantong strand river, The rigid limited-equilibrium method and 2-D FEM are adopted endly in the thesis. The conclusion is that slope stands in the critical stable appearance. The anti-sliding pile measure is adopted to prevent slope's unstability. Through whole analysis between the anti-slide pile and the landslide body, the conclusion that the slope is safety in norm request can be put forward. The stress of anti-sliding pile is subjected and passed to the monitor data to confirm the calculating rationality. It will provide the basis for the next design.