基坑开挖引起下卧地铁隧道上浮变形的控制研究

李鹏1,2赵伟1,3韩理想1

Control Study on Uplift Behavior of Underlying Metro Tunnel Caused by Pit Excavation

LI PengZHAO WeiHAN Lixiang
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。
Abstracts:
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.
引文 / Ref:
李鹏,赵伟,韩理想.基坑开挖引起下卧地铁隧道上浮变形的控制研究[J].城市轨道交通研究,2021,24(5):92.
LI Peng,ZHAO Wei,HAN Lixiang.Control Study on Uplift Behavior of Underlying Metro Tunnel Caused by Pit Excavation[J].Urban mass transit,2021,24(5):92.
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