摘要
地下复杂洞室群的分析与计算是一个三维问题,但受计算机容量、三维网格剖分的复杂性、软件的计算能力等因素制约,实际计算时常常采用平面应变模型代替复杂的三维模型。两种模型计算得到的塑性区范围是不同的。从理论上通过Drucker-Prager屈服准则比较证明了这两种模型的差异,得到平面应变模型塑性区比三维模型塑性区大的结论。
The analysis and calculation on underground caves is absolutely a 3D problem, but a 2D model is usually applied to substitute for the 3D model. This paper discusses the difference of the two models on the basis of Drucker-Prager Rule and a conclu sion is achieved that the plastic region of 2D model is bigger than 3D model.
出处
《岩土工程技术》
2006年第1期33-35,共3页
Geotechnical Engineering Technique
