复杂敏感环境条件下明暗挖结合地铁车站施工关键技术研究  

Research on Key Technologies for the Construction of Subway Stations Combining Open-cut and Mining under Complex and Sensitive Environmental Conditions

作　　者：吉帅科 JI Shuai-ke(China Railway Electrification Bureau Group Co.,Ltd.,Beijing 100036,China)

机构地区：[1]中铁电气化局集团有限公司,北京100036

出　　处：《价值工程》2025年第6期68-71,共4页Value Engineering

摘　　要：研究聚焦于长春桥地铁车站建设项目,该项目面临复杂结构、高度敏感的环境保护需求及多变的地质条件等多重挑战。针对这些难题,深入探索了PBA(洞桩法)工法在明暗挖结合施工策略中的创新应用。通过对比分析两种施工方案,结合有限元模拟技术,详细剖析了不同施工顺序下力学转换的动态过程,及其对工程稳定性、周边建筑保护及环境影响的具体效应。研究成果不仅有效控制了施工风险,还显著提升了施工效率与环保水平,为未来在类似复杂环境下的地铁车站建设提供了科学依据与实践范例。This study focuses on the construction project of the Changchunqiao Subway Station,which confronts multifaceted challenges including intricate structures,stringent environmental protection requirements,and variable geological conditions.To address these difficulties,we delved into the innovative application of the PBA(Pile-Beam-Arch)method within the combined open-cut and mining construction strategy.By contrasting and analyzing two construction schemes,coupled with finite element simulation technology,we meticulously dissected the dynamic processes of mechanical transformation under different construction sequences,and their specific impacts on engineering stability,adjacent building protection,and environmental effects.The research outcomes not only effectively mitigated construction risks but also notably enhanced construction efficiency and environmental protection standards,providing a scientific basis and practical model for future subway station construction in similarly complex environments.

关 键 词：明暗挖结合 地铁车站 PBA工法 明挖 暗挖 数值模型 

分 类 号：U231.4[交通运输工程—道路与铁道工程]