湖南大学学报（自然科学版）2017，Vol.44Issue(3)：134-142,9.DOI:10.16339/j.cnki.hdxbzkb.2017.03.017
基于单元重构与节点分离的大型地下洞室软弱结构面模拟方法
Simulation Methodology of Weak Structural Planes in Large Underground Chamber Based on Element Reconstruction and Node Separation
摘要
Abstract
As weak structural planes are difficult to be simulated reasonably in large underground chamber,"element reconstruction and node separation" was introduced,and the new simulation methodology of discontinuous weak structural planes was proposed in this study.The proposed methodology was used in the actual numerical model of underground powerhouse to simulate the discontinuous weak structural planes.The reconstructed model was then imported into calculation program,and the result was compared with the prediction by conventional continuous finite element model.The comparison shows that the reconstructed model can be used in the numerical calculation,and the discontinuity feature is presented near the discontinuous structural planes.Moreover,the rules in the calculation results are consistent with the general rules,which can describe the actual occurrence mode of the structural planes.Therefore,the simulation methodology of discontinuous weak structural planes achieves the transformation into the discontinuity of the structural planes,and it provides a new way for the simulation of complex geological discontinuous weak structural planes in large underground chamber.关键词
单元重构/节点分离/结构面/非连续/建模方法Key words
element reconstruction/node separation/structural planes/discontinuity/modelling分类
建筑与水利引用本文复制引用
赵健,肖明,陈俊涛,李冬冬..基于单元重构与节点分离的大型地下洞室软弱结构面模拟方法[J].湖南大学学报（自然科学版）,2017,44(3):134-142,9.基金项目
国家重点基础研究发展计划(973计划)项目(2015CB057904),National Key Basic Research and Development Program(973 Program)(2015CB057904) （973计划）
国家自然科学基金重大研究计划项目(90715042),Major Research Plan of the National Natural Science Foundation of China(90715042) （90715042）
国家自然科学基金资助项 目(51579191),National Natural Science Foundation of China(51579191) （51579191）
