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基于地铁车站深基坑开挖监测结果,通过将基坑开挖过程中水平支护结构轴力,围护桩水平位移,桩项冠梁位移及基坑周边地表沉降实测结果与数值模拟结果相对比,分析了基坑开挖过程中支护结构及周边环境变化的影响因素,为基坑信息化施工提供了依据。对比分析表明:在基坑施工过程中将理论计算与实际测量结果相结合,有利于对施工中一些不利因素进行及时准确的预警和对施工方案进行动态调整,达到基坑信息化施工的目的。
Based on the monitoring results of excavation of deep foundation pit of subway station, the measured results of horizontal support structure horizontal displacement, displacement of crown beam and surface settlement around foundation pit are compared with numerical simulation results The influential factors of the support structure and the surrounding environment during the excavation of the foundation pit are analyzed, which provides the basis for the information-based construction of the foundation pit. The comparative analysis shows that the combination of theoretical calculation and actual measurement results in the process of foundation pit construction is conducive to early warning of some unfavorable factors in construction and the dynamic adjustment of construction plans to achieve the purpose of information construction of foundation pit.