DEVELOPMENT AND STUDY OF STABILITY ANALYSIS SYSTEM OF SLOPE BLOCKS

Some new theory and methods for development of slope rock block stability analysis system are presented in this paper. Being different from others, in the theory a cutting method is used to set up a block model by which the problem of complicated geometry shapes, such as hexahedron blocks can be solved. Theoretically, this method can be generally used for evaluating the stability of wedge-blocks with arbitrary geometric shapes. A software package based on above theory has been developed in the environment of Windows 3.x and Windows 95. As a typical example, the new theory and software have been applied to stability analysis of wedge slope at shiplock high slopes in Three-Gorges Project, the far hydropower station project in the world. It provides an efficient tool for quick judgment of unstable blocks, and ensure the safety of construction.