据此，建立基于最大主剪应变的岩土材料延性剪切破坏应变准则；
The strain criterion for ductile shear failure based on the maximum principal shear strain is established.
对有限元的计算结果进行了分析，对运用最大剪应变等值线、大主应变等值线确定可能滑动面，运用应力水平分析单元的受力状态进行了研究。
The results of FEM are analyzed , and the action of the strain isoline , stress level isoline, energy isoline and safety factor isoline is applied.
面应变、主压应变、剪应变和趋势累积率同时较高的地区，强震危险性较大。
The area with the simultaneous higher surface strain, principal compressive strain, shear strain and tendency accumulation might be the place with higher risk of strong earthquakes.
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