摘要
依托长沙市轨道交通2号线某工程,结合现场实际,对传统的双侧壁导坑法施工步序进行优化调整设计,在数值分析的基础上,比较2种不同的开挖步序对围岩和支护结构的位移以及工字钢内支撑的内力进行比较分析,得到优化改进后的双侧壁导坑施工工序是可行的。
Based on some project of Changsha Rail Transit Line 2, combined with the actual conditions, the traditional existing double side slope method construction step sequence was optimized and adjusted. Based on the numerical analysis, this paper compared the displacement of surrounding rock and support structure with two different excavation step sequence, analyzed the internal force of I-shaped section steel support. Results show that the improved double side wall pilot tunnel construction process is feasible.
出处
《施工技术》
CAS
北大核心
2015年第19期113-116,共4页
Construction Technology
关键词
隧道工程
地铁
双侧壁导坑法
优化
数值分析
tunnels
subways
double side slope method
optimization
numerical analysis
