当单元破裂后，将破裂单元作为内部边界，利用有限元方法计算由于这个单元破裂对系统其他单元造成的应力调整。

After a cell is broken, the stress adjustments of the other cells in the system are obtained by finite element method using the broken cell as inner boundary.

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采用梁单元、有限元、边界元、无限边界元相结合的方法，建立了频域中结构-半无限地基系统的分析模型。

In this paper, a coupling model of Beam element finite element boundary element Infinite boundary element for the analysis of structure foundation system in frequency domain is established.

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应用有限棱柱单元法对群桩与土相互作用系统进行了三维弹塑性分析，并以无限棱柱元模拟半无限空间地基土的边界条件。

In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.

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