摘要
以徐州轨道交通1号线工程车辆段基坑开挖施工为工程背景,在基坑开挖过程中对下卧地铁隧道的卸荷回弹变形进行动态再评估;对实测数据进行分析,提出了基坑施工对下卧地铁隧道的工程风险控制措施;有效控制了地铁隧道的上浮变形,确保了基坑及下卧地铁隧道结构安全。
Taking the depot foundation pit excavation project of Xuzhou Metro Line 1 as the background,the rebound deformation of underlying metro tunnel after unloading is re-evaluated dynamically in the process of foundation pit excavation.The field measured data is analyzed and risk control countermeasures for underlying metro tunnel in foundation pit excavation is proposed.The uplift displacement of metro tunnel is effectively controlled,ensuring structural safety of foundation pit and underlying metro tunnel.
作者
李鹏
赵伟
韩理想
LI Peng;ZHAO Wei;HAN Lixiang(Xuzhou Metro Group Co.,Ltd.,221007,Xuzhou,China;不详)
出处
《城市轨道交通研究》
北大核心
2021年第5期92-96,共5页
Urban Mass Transit
关键词
明挖基坑
地铁隧道
风险评估
上浮变形
工程实测
foundation pit open excavation
metro tunnel
risk assessment
uplift displacement
field measurement
