地铁浅埋暗挖车站洞桩法大跨扣拱施工技术探究

摘要

China's urban subway construction is developing rapidly, and the scale is more and more big, the restricting factors of the surrounding various construction increasingly harsh, causes the structure and form of the subway station is more diverse and complex, so to continuous improvement and innovation of construction technology. Among them, one of the methods is the most representative of the cavern pile method. It is flexible, less disturbance caused to the urban life, without construction of expensive equipment, and has a strong adaptability. Mainly on the subway shallow hole pile method excavation station buckle arch construction technology difficulty, steps and take the related technical measures of large span.%我国城市地铁修建正在快速发展，且规模越来越大，周边各种施工制约因素也越来越苛刻，导致地铁车站的结构、形式更加多样化、复杂化，所以，不得不持续改进并创新施工技术。其中，最具代表性的工法之一就是浅埋暗挖洞桩法。它灵活多变，对城市生活造成的干扰较小，不需要价格昂贵的施工设备，并且具有很强的适应性。主要探究了地铁浅埋暗挖车站洞桩法大跨扣拱施工的技术难点、步骤和所采取的相关技术措施。