复杂外部条件下地铁车站结构方案探讨
Study on subway station structure constrained by complex external conditions

摘要 日益复杂的地铁建设外部条件使得常规的地铁车站结构型式在工程应用中遇到挑战，结合近年来参与的地铁车站结构方案设计研究成果，介绍了复杂外部条件下的地铁车站结构方案及工程应用.主要包括：基于双线盾构隧道扩挖建造的地铁车站、基于大直径盾构隧道扩挖建造的地铁车站、穿越桥区分离式车站、穿越铁路站场和城市重要交通干道道口的组合式车站，以及预制装配式车站.适用于存在车站与区间隧道协调困难、车站赋存的外部条件复杂等问题的地铁车站结构型式设计中.
Abstract：The complex external conditions of subway construction challenge the engineering application of conventional structures of subway station. Combined with the research results of the subway station structure schemes in recent years, the structure schemes and engineering applications of subway station under complex external conditions are introduced. The main contents in this paper include subway station structure based on double-line shield tunneling, subway station based on large diameter shield tunnel excavation,separated station structure across the bridge area, combined station crossing railway station and major urban road crossings, and prefabricated subway station etc. It is suitable for the structural design of subway stations where there are problems such as difficulty in coordination between stations and interval tunnels， and complcated external conditions around the station.