路基工程Issue(2)：156-162,7.DOI:10.13379/j.issn.1003-8825.202405030
双导洞三台阶法超大断面暗挖车站施工稳定性分析
Analysis on Stability of Extra-large Section Underground Station Construction Using Double-arch Three-step Method
摘要
Abstract
To thoroughly investigate the mechanical behavior and engineering characteristics of the double-arch three-step method during construction,this study took an extra-large section underground station from a certain subway as the analysis object.A combined approach of field monitoring and numerical simulation was employed to analyze and calculate structural stability under different working conditions,compare the advantages and disadvantages of various support schemes,and propose optimization design recommendations.By analyzing the application of the double-arch three-step method in extra-large section underground stations,the study identified key factors affecting structural stability,optimized support schemes,and enhanced construction safety and efficiency.The results show that,during the construction of extra-large section underground stations,station depth,pre-reinforcement range of surrounding rock,and step length have the most significant impact on arch settlement,requiring special attention to changes in surrounding rock at the station arch.By comparing different support schemes,construction safety and efficiency can be significantly improved.关键词
砂岩/超大断面/暗挖车站/临时支撑/现场监测/位移/稳定性Key words
sandstone/extra-large section/underground station/temporary support/on-site monitoring/displacement/stability分类
交通工程引用本文复制引用
杨彬,肖华,华宏燕,刘家顺,郑智勇,贾宝新..双导洞三台阶法超大断面暗挖车站施工稳定性分析[J].路基工程,2026,(2):156-162,7.基金项目
国家自然科学基金项目(52104088,52374091) （52104088,52374091）
