龙滩水电站地下洞室群施工顺序及稳定性分析  

CONSTRUCTION SEQUENCES AND STABILITY ANALYSIS OF LONGTAN UNDERGROUND HOUSES

作　　者：杨典森[1] 李术才[1] 陈卫忠[1] 杨为民[2] 李廷春[1] 朱维申[2] 

机构地区：[1]中国科学院武汉岩土力学研究所岩土力学重点实验室,武汉430071 [2]山东大学岩土与结构工程研究中心,济南250061

出　　处：《岩石力学与工程学报》2003年第z1期2254-2258,共5页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金(5993190)重点资助项目

摘　　要：地下洞室群的合理开挖方案对于围岩的稳定性和减少支护成本有着极其重要的意义。结合龙滩水电站地下洞室群,应用快速拉格朗日法 FLAC^(3D)。对设计院方案、施工方方案以及根据时空变载原理确定的3种不同开挖方案进行了稳定性分析,提出了较优的可变更的施工顺序,为施工设计和现场施工提供了参考依据。Reasonable construction sequences are very important for stability of hydropower station and cost of support.5 construction schemes are obtained from designer and contractor and numerical simulations are executed on according to the 5 schemes with the numerical code of FLAC^(3D).The optimal construction sequences are obtained by comparing the numerical results and 3 construction schemes are suggested by the authors and based on construction mechanics.The presented study results are of reference values for both designers and contractor.

关 键 词：数值分析 施工顺序 优化 稳定性 FLAC3D 

分 类 号：TU457[建筑科学—岩土工程]