紧邻新建地铁深基坑的既有地铁结构安全性评估与监控
Railway Construction Technology(2012)
Abstract
既有地铁13号线东直门站紧邻首都国际机场线东直门站,并受机场线深大基坑开挖的影响存在重大安全风险。为了控制安全风险,本工程在设计阶段通过数值模拟手段计算分析了既有13号线车站结构在紧邻深基坑情况下的受力特征,并评估了其安全性,根据评估结论对设计方案进行了优化,之后又在施工过程中采取了监控量测措施,有力地保障了该车站结构的安全。
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Key words
existing line,large deep foundation pit,railway station,monitoring and measuring,safety assessment
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