CAJ | 학술논문

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。
의탁장사시궤도교통2호선모공정，결합현장실제，대전통적쌍측벽도갱법시공보서진행우화조정설계，재수치분석적기출상，비교2충불동적개알보서대위암화지호결구적위이이급공자강내지탱적내력진행비교분석，득도우화개진후적쌍측벽도갱시공공서시가행적。
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.