Parameters such as cohesion of soil, angle of internal friction, and unit weight of soil on which slope stability analysis depends are determined in the laboratory. Slope stability analysis using GEO5 software deals with various techniques such as Bishop’s changed technique, Spencer’s method, Morgenstern-Price method, Janbu’s simplified method, and so on. Design analysis completed on GEO5 software that requires geotechnical properties. The following study focuses on slope failure analysis which is primarily based on site investigations and lab testing. In order to prevent the change in the level required by the terrain, generally, embankments are formed using compacted soil (i.e., generally clay or rock based) are used to sustain roads, railways or even canals built over it. The experimental results show that compared with the traditional method, the stability coefficient calculated by this method is closer to the actual data, with lower analysis error and higher analysis efficiency, and the maximum analysis time is only 2.5 s. Secondly, the strength reduction method is used to analyze the advantages of geotechnical slope stability, and the established finite element model is solved by using the strength reduction method to obtain accurate geotechnical slope stability coefficient and complete the accurate analysis of geotechnical slope stability. On the basis of the finite element analysis method, the finite element model is established, including the establishment of geometric model, preparatory work, and the fast triangle algorithm is used to optimize the mesh constructed by the finite element optimization method, and the mesh quality is tested. In order to overcome the problems of large analysis error and low analysis efficiency in the current analysis method of rock and soil slope stability, a new research method based on strength reduction method is proposed in this paper.
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