Studies On Slope Stability Analysis Methods And Their Application

There are many landslides happened every year in China. Landslides cause a heavy loss in the process of construction of water conservancy and power project, railway and highway project, mining engineering etc. So, the main goal of the slope engineering is to reduce the landslide disaster. Appraising the stability of slopes correctly is the key issue to reduce landslide disaster and the correct appraisal depends on the correct method used in slope stability analysis.Up until now, several kinds of methods have been developed to analyze the slope stability, including limit equilibrium method, limit analysis, strength reduction method, etc. The limit equilibrium method is used widely in slope stability analysis both in domestic and international. The strength reduction method, which is based on numerical calculation, has a rapid development with the development of the computer science. Based on the other researchers'achievements, I did some research on slope stability analysis methods. The main contents are as follows:1. Modifying the Spencer method and using Newton-Raphson iteration formula to obtain the factor of safety F and the intercolumn force parameterλ. Adopting a new algorithm to improve the efficiency of locating the critical slip surface. Programming the method in FORTRAN and applying it in the stability analysis of the sea embankment in the chemistry zone in Shanghai.2. Proposing a limit equilibrium method for three-dimensional slope stability analysis and programming it in FORTRAN. This method considers the vertical shear forces on the intercolumn faces and the transverse...