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本文应用三维边界元静(动)力分析程序包 BESDAP 对小浪底工程地下洞群的围岩变形与稳定进行了整体计算分析。简述该程序包在用于大型工程时,对若干重要的计算技术问题作的有效处理。计算成果给出各洞室之间的相互影响,各洞室的孔边位移、应力以及洞周的剪切破坏区。整个计算过程与最终成果均表明边界元法的各种优点在地下洞群围岩分析中表现得特别显著。
In this paper, three-dimensional boundary element static (dynamic) force analysis package BESDAP of the Xiaolangdi engineering underground caverns surrounding rock deformation and stability of the overall calculation and analysis. Brief Description This package handles a number of important computing issues effectively when applied to large projects. The calculation results show the mutual influence among the caverns, the displacement of holes in each cavern, the stress and the shear failure zone of the cave. The whole calculation process and the final results show that the various advantages of the BEM are particularly significant in the analysis of surrounding rock mass of underground caverns.