粉细砂地层浅埋暗挖施工优化及控制措施  

Construction optimization and control measures of shallow buried underground excavation in silty fine sand stratum

作　　者：陈乐军 张林宏 冉德钦 CHEN Lejun;ZHANG Linhong;RAN Deqin(Weifang Transportation Service Guarantee Center,Shandong Weifang 261061 China;Shandong Transportation Institute,Shandong Jinan 250031 China)

机构地区：[1]潍坊市交通服务保障中心,山东潍坊261061 [2]山东省交通科学研究院,山东济南250031

出　　处：《山东交通科技》2023年第4期129-130,136,共3页

摘　　要：粉细砂地层的浅埋暗挖施工,一直是地铁施工的重点研究领域。由于粉细砂地层自稳性差,暗挖施工极易产生坍塌事故,因此保持开挖土体稳定、控制地面沉降成为粉细砂地层浅埋暗挖施工中最重要的课题。结合粉细砂地层浅埋暗挖工程实例,总结施工优化控制措施,为类似地层的暗挖施工提供一定参考。The shallow-buried underground excavation construction in silty fine sand stratum has always been the key research field of subway construction.Due to the poor self-stability of the silty fine sand stratum,the construction of underground excavation is very prone to collapse accidents,so maintaining the stability of the excavated soil and controlling the ground settlement become the most important issues in the construction of shallow buried underground excavation in the silty fine sand stratum.This paper summarizes the construction optimization control measures based on the example of shallow-buried underground excavation in silty fine sand stratum,and provides some reference for the construction of underground excavation in similar stratum.

关 键 词：粉细砂 浅埋暗挖 土体稳定 控制沉降 

分 类 号：U455.41[建筑科学—桥梁与隧道工程]