三维土质边坡稳定性分析方法研究现状与展望

回顾土质边坡稳定性分析3种主要方法(极限平衡法、极限分析法、数值分析法)的国内外研究现状,总结发现:(a)传统的极限平衡法和极限分析法在20世纪得到了快速发展;(b)21世纪以来随着计算机技术与数值方法的进步,数值分析法的优势越发显著,受到大家的认可与推崇;(c)尽管已有的三维分析方法被不断地改进与完善,但是依旧存在一些问题需要深入研究。在总结国内外研究进展的基础上,对已有的三维土质边坡分析方法研究存在的困难进行了分析。最后,针对三维土质边坡稳定性分析方法存在的问题和近些年的发展趋势,展望了未来的研究方向。

Current research and prospects of 3D earth slope stability analysis methods

Three methods currently used in earth slope stability analysis, including the limit equilibrium method, limit analysis method, and numerical analysis method, are reviewed in this paper. Analyses show that(a)the traditional limit equilibrium and limit analysis methods were developed rapidly in the 20th century; (b)with the development of computer techniques and numerical methods in the 21st century, three-dimensional(3D)numerical analysis methods(e. g. , the finite element method and finite difference method)have been developed and widely accepted because of their significant advantages; and(c)although these 3D slope stability analysis methods have been improved, there are still some problems. Based on analysis of the existing problems and development trends of the 3D slope stability analysis methods, some ideas are presented for the future development of these analysis methods.