摘要
描述了适用于岩土工程中模拟多步开挖过程的自适应有限元方法。针对模拟开挖的计算特点，着重介绍了网格加密及退化、数据结构、以及荷载移置的处理措施，并通过算例说明自适应有限元用于开挖施工过程模拟分析的有效性和优越性。
Adaptive finite element method for the simulation of excavation process is described in this paper. In accordance with the feature of simulation calculation of excavation process, the means of refining and de refining mesh, organizing and managing data, and transplanting load are introduced in detail. Numerical experiments performed by the stress analysis of underground cavern excavation have shown the effectiveness and the advantages of adaptive FEM in the simulation of excavation process.
出处
《矿冶工程》
CAS
CSCD
北大核心
1999年第4期1-5, ,共5页
Mining and Metallurgical Engineering
基金
国家自然科学基金!59879012
关键词
开挖过程
地下工程
模拟分析
自适应有限元
adaptive mesh refinement
finite element method
simulation of excavation process
underground engineering
