以二滩工程为背景的洞群开挖系统分析  

Systematic Analysis of Underground Cavern Groups in Background for Ertan Project

作　　者：朱维申[1] 孙爱花[1] 隋斌[1] 

机构地区：[1]山东大学岩土与结构工程研究中心,济南250061

出　　处：《地下空间与工程学报》2005年第1期15-18,共4页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金(59939109;40272120;50229901)重点资助项目

摘　　要：采用三维有限差分FLAC3D程序,以二滩工程地下洞群的结构形式为背景,考虑了几种主要不同因素的影响对围岩稳定性进行了大量计算工况的准三维数值模拟。对毛洞开挖时主厂房边墙关键点的最大水平位移和主厂房的塑性区进行了系统分析,得到若干规律性结果,可供大型地下洞室群稳定分析时作为参考。运用本文提供的方法对八个大型工程的位移做了预测分析,表明此方法的有效性。In this paper the authors use FLAC3D to carry out simulation analysis in underground power house of Ertan Project. FLAC3D is a three dimensional explicit finite-difference program. The authors considered different main factors which influence the stability of wall rocks and have done lots of numerical simulation analysis with approximate three dimension. The systematic analysis on the horizontal displacements of the key point of side wall on the plastic zone of the main cavern is carried out. The authors draw some conclusions from the systematic analysis . These conclusions will provide some useful reference for the study of large-scale underground cavern groups. The authors use the method which is mentioned in this paper to forecast the displacements of eight engineering projects. The results prove that the method is feasible.

关 键 词：二滩水电站工程 洞群开挖系统 地下洞群 结构形式 塑性区 无量纲分祈 

分 类 号：TU941[建筑科学—建筑技术科学] TV745[水利工程—水利水电工程]