泥岩地层地铁车站底板下方密贴暗挖方案研究  

STUDY ON UNDERGROUND EXCAVATION SCHEME CLOSELY UNDER SUBWAY STATION FLOOR IN MUDSTONE STRATUM

作　　者：田海波 李勇志 杨潇 TIAN Hai-bo;LI Yong-zhi;YANG Xiao(Power China Huadong Engineering Corporation Limited,310014,Hangzhou,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,杭州310014

出　　处：《建筑技术》2021年第11期1338-1341,共4页Architecture Technology

摘　　要：某新建地铁车站密贴暗挖下穿既有车站工程设计中,针对既有车站条件,结合地层条件,通过计算得出新建车站开挖对既有车站结构内力的影响,据此复核既有车站结构设计。通过计算分析得出车站开挖对既有车站结构抗浮稳定性的影响,并提出针对性措施。综合考虑地下车站开挖对上部结构的卸载等影响,对地下车站开挖提出针对性要求。In the design of a new subway station underground excavation project closely passthrough under an existing subway station,conditions of existing subway station and stratum conditions were considered to calculate the influence of excavation of the new subway station on the internal force of existing subway structure and then to verify the structure design of existing subway station.After calculation and analysis,the influence of excavation construction on the anti-floating stability of existing subway station structure was obtained and relevant measures were proposed.Based on the influence of underground excavation on the unloading of upper structure,this paper put forward the requirements for underground subway station excavation.

关 键 词：地铁车站 泥岩地层 大断面 下穿 导洞条基法 

分 类 号：TU74[建筑科学—建筑技术科学]