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提出了将深基坑支护结构的垂直围护结构和水平支撑结构作为一个整体空间有限元的分析方法，并据此研制开发了ＤＰＳＡ深基坑整体空间分析计算和辅助设计软件，以解决将垂直围护结构和水平支撑结构分开单独计算时两者变形不协调的问题，以及水平支撑计算时边界条件难于假定，整体结构的位移、内力分析不够完整、确切等缺陷。
The analysis method of the vertical envelope and horizontal support structure of the deep foundation pit support structure as a whole space finite element method is proposed. Based on this, the whole space analysis and calculation software for the deep foundation pit of DPSA is developed and assisted to solve the problem. When the vertical envelope structure and the horizontal support structure are separated and calculated separately, the problem of inconsistent deformation between them and the boundary conditions of the horizontal support are difficult to be assumed, and the displacement and internal force analysis of the overall structure are not complete or exact.