摘要
依托沈阳地铁工程项目,以青年大街—怀远门区间段的地铁隧道施工为背景,应用FLAC软件进行数值模拟分析。针对沈阳的地质情况以及各种开挖方式的适用范围和特点,主要采用全断面法、双侧壁导坑法、保留核心土台阶法三种方案进行模拟分析,并根据监测点位移、围岩的弹塑性状态、锚杆轴力及衬砌内力等对开挖方式的合理性进行研究。
This paper based on shenyang subway project. Conceiving the weekend interval period metro tunnel construction as the background and the application of FLAC numerical simulation analysis software. According to the geological conditions, various of shenyang excavation method applicable range and characteristics of main adopts full section method, double meshshotereting firstly method, retain earth steps method are simulated and analyzed in three ways. and also according to the monitoring displacement, the surrounding elastic-plastic state, anchor axial force and lining of internal rationality of such excavation methods.
出处
《岩土工程技术》
2012年第3期120-124,共5页
Geotechnical Engineering Technique
关键词
数值模拟
开挖方式
优化分析
numerical simulation
excavation way
optimization analysis
