Search Of The Most Dangerous Sliding Surface And Finite Element Analysis Of The High-steep Slope

The stability analysis of slope is an important research area in geotechnical engineering all the time. With the fast development of domestic investment in capital construction and the western China exploitation in these years, the rock slope stability analysis is more and more in supports of high-steep slope. In slope's construction process, that the slope become invalid usually bring about. If the slope slides, the results will be disastrous, so the stability analysis of slope is significant.This paper studied the quarry slope of the second construction of Shenzhen Polytechnic, following the research route as field investigation-information collection-parameter disposal-establishment of calculation model-stability analysis. On the basis of the simply BISHOP theory, the paper searched the most dangerous sliding surface and gained the minimum safety factor and coordinates of the center of the sliding surface by adopted the program RREAME.When using finite element method, the paper established the calculation model of high-steep slope with eight-noded elements, and compiled the program GEOEPL2D. It is obtained that the element displacement and stress from analysis of the calculation results.Four bore sections were selected as the calculation cases when using the limit equilibrium method and the third when using the finite element method, and analysis of the calculation results were made. The results showed that the slope is of stability at present. But thinking of importance of the slope stability and instability of the slope's parts, reasonable design and supports of the slope was necessary.