大型地下洞室围岩稳定性数值模拟分析  

Numerical Analysis on the Stability of Large Scale Underground Caverns

作　　者：鹿庆蕊[1] Andrea Perino 赵凯[3] 陈士军[1] 刘慧群[4] 

机构地区：[1]东华理工大学建筑工程学院,江西南昌330013 [2]都灵理工大学结构岩土学院 [3]南京工业大学交通学院,江苏南京211816 [4]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《水利与建筑工程学报》2015年第4期137-140,共4页Journal of Water Resources and Architectural Engineering

基　　金：江西省自然科学基金项目(20142BAB216005);江西省科技支撑计划(20151BBG70004);东华理工博士启动金项目(DHBK2013203);国家自然科学基金项目(51468001)

摘　　要：国内外水能资源的开发及大型地下古建筑群的保护往往需要布置地下厂房洞室群,而大型洞室的稳定性研究逐渐成为岩土工程学术界的研究热点。基于此,分别采用有限元软件Midas及离散元软件DEM对两大典型地下洞室的稳定性进行三维数值模拟分析:其一为位于意大利都灵省苏萨谷的Pont Ventoux水力发电站的Venaus洞室;其二为位于以色列的Tel Beer Sheva洞室。计算结果表明,根据围岩性状不同选取不同的计算工具均可较可靠的评价地下洞室的稳定性,且三维模型可更精确的描述洞室几何尺寸及围岩性状。With the development of water resources utilization and the protection of ancient underground architecture, it is necessary to construct relevant large scale underground projects. Recently great attention has been paid to the stability of large underground caverns in the research area of rock mechanics and rock engineering. In view of this, the numerical simulation on the stability of two typical large underground caverns was carried out. Following a brief introduction of the main modeling approaches, the analysis of the stability of cave Venaus by a continuous FEM model was firstly performed. The stability of cave Tel Beer Sheva was analyzed by constructing a discontinuous DEM model. The comparison of the re- sults obtained by numerical analysis with the values measured in-situ validated the reliability of these two different model- ing approaches of large scale underground structures excavated in rock mass, and it also proves that 3D model is able to better capture the features of complex projects.

关 键 词：大型地下洞室 连续性 非连续性 数值方法 

分 类 号：TU457[建筑科学—岩土工程]