近距离与轨道交通并行的超大型基坑“分块化”快速施工方案研究  

Study on Blocking Rapid Construction Scheme of Super-Large Foundation Pit in Close Parallel with Rail Transit

作　　者：林咏梅 刘方明 LIN Yong-mei;LIU Fang-ming(Shanghai Urban Construction Design&Research InstituteCo.,Ltd.,Shanghai 200125,China)

机构地区：[1]上海市城市建设设计研究总院(集团)有限公司,上海200125

出　　处：《中国市政工程》2021年第4期77-79,111,112,共5页China Municipal Engineering

摘　　要：以临近苏州轨道交通L1、L3狮子山站的苏州狮山广场地下空间基坑为例,研究近距离与轨道交通并行的超大型基坑快速施工方案。结合超大型基坑特点、工程范围和水文地质情况、基坑周边环境等因素,利用条形基坑进行隔断,同时对剩余基坑区域分区分段开挖,为节约投资和缩短工期,提出“间隔法”“分块化”快速化施工方法。为近距离与轨道交通并行的超大型基坑快速化施工提供借鉴。Taking the underground space foundation pit of Suzhou Shishan Square near Suzhou Rail Transit L1&L3 Lion Mountain Station as an example,the rapid construction plan of super-large foundation pit parallel to rail transit is studied.Combined with the characteristics of super-large foundation pit,project scope,hydrogeological conditions,surrounding environment of foundation pit and other factors,strip foundation pit is used for isolation,and the remaining foundation pit area is excavated in sections.To save investment&shorten construction period,the rapid construction methods of interval method and blocking are proposed,which may provide a reference for the rapid construction of super-large foundation pit in close parallel with rail transit.

关 键 词：近距离与轨道交通并行 超大型基坑 分块化施工 

分 类 号：TU473.2[建筑科学—结构工程]