大面积深基坑施工对运营地铁结构影响分析

以武汉金地中核凤凰商业城项目的大面积深基坑施工近邻运营的武汉轨道交通蔡甸线地铁车站和区间隧道为背景,对其过程进行数值模拟分析,研究了深基坑开挖施工对运营的地铁车站和区间隧道结构可能产生的影响,并提出施工保护和控制措施建议,确保地铁车站及区间隧道的近接运营安全.研究结果表明:模拟计算结果与实际施工监测的沉降趋势较为吻合;...

Influence Analysis of Large-area Deep Foundation Pit Construction on Metro Structure in Operation

By taking the concurrent construction situation of Wuhan Jindi Central Core Phoenix City commercial project and Wuhan Metro Caidian Line as a research object, a numerical simulation on the whole construction process of large-area deep foundation pit nearby the metro station and tunnels was carried out to identify the influence of deep foundation pit excavation construction on structures of metro station and tunnels in operation. And appropriate protection and control measures were put forward to ensure operation safety of metro station and tunnels. The research results show that they are in good agreement with the settlement trend of actual construction monitoring; under the existing protection and control measures, large-area deep foundation pit construction has little influence on structural deformation of metro station and tunnels, and structure of the station and tunnels are safely controlled.