有限元法是把连续体理想化为有限多个有限大小单元组成的离散体,因此,可以对不同的单元根据具体情况给定不同的力学性质;可以对节理裂隙等弱面设置适当的弱面单元;可以十分方便的处理层状岩体的正交各向异性;较精确的估算地下渗流、爆破震动等对岩体应力场、位移场以及稳定性的影响;更可方便地处理各种不规则的几何边界以及各种复杂的位移边界条件;亦可考察构造应力场以及模拟各种开挖高度对边坡稳定性的影响。但是,在边坡稳定性有限元分析中,长时期以来由于滑动面的确定和总安全度的计 Finite element method is to idealize the continuum into a finite number of discrete elements of finite size units, so different units can be given different mechanical properties according to the specific situation; can be set to the joints and other vulnerable weak face weaknesses Unit; Orthogonal anisotropy of layered rock mass can be handled very conveniently; The influence of underground seepage and blasting vibration on stress field, displacement field and stability of rock mass is more accurately estimated; The geometric boundaries of the rules and various complicated displacement boundary conditions. The effects of tectonic stress field and simulation of various excavation heights on slope stability can also be examined. However, in the finite element analysis of slope stability, due to the determination of the sliding surface and the total safety factor