下沉广场基坑施工邻近地铁车站结构安全评估与监测实例分析

Case Analysis of Safety Evaluation and Monitoring of Sunken Square Foundation Pit Construction Adjacent to Subway Station

以南宁市某下沉广场基坑工程邻近5号线地铁车站结构施工为例,研究了专项监测方案,重点分析了基坑开挖施工影响既有地铁车站结构安全评估预测与实测的监测变形。研究表明,实测的监测变形与安全评估预测的变形相吻合,通过评估预测加强施工措施可以有效控制变形。

The paper takes the construction of a sinking square foundation pit project near the subway station on Line 5 in Nanning City as an example,and studies a special monitoring plan.The focus is on analyzing the impact of excavation construction on the safety assessment prediction and actual monitoring deformation of the existing subway station structure.The research shows that the actual monitoring deformation is consistent with the deformation predicted by the safety assessment.Strengthening construction measures through evaluation prediction can effectively control deformation.