摘要
针对各种不连续面围岩稳定性的数值模拟方法存在的缺陷,指出接触力学问题有限元法模拟不连续面的精确性,阐述了求解大规模接触问题的有限元法理论及程序实施,并应用于有不连续面地下洞室开挖模拟。结果表明,接触问题有限元法模拟不连续面围岩稳定性较精确、有效,可供借鉴。
Aiming at the defects of numerical simulation method for stability of surrounding rock with various discontinuity surfaces,the accuracy of FEM for contact problem to simulate discontinuities are pointed out.The theory of FEM for solving large-scale contact problem and its program implementation are represented and applied to simulate underground chamber excavation with discontinuity surfaces.The results show that the proposed method is precise and effective for simulating the stability of surrounding rock w...
出处
《水电能源科学》
北大核心
2010年第6期50-52,38,共4页
Water Resources and Power
关键词
不连续面
围岩
稳定性
数值模拟
接触问题有限元法
discontinuity surface
surrounding rock
stability
numerical simulation
FEM for contact problem
