某地铁区间盾构法施工监测分析

Monitoring analysis of subway interval shield method construction

地铁区间盾构法施工监测是确保地铁区间施工安全的重要保障。在分析盾构隧道施工地表建(构)筑物沉降监测、建(构)筑物倾斜监测、裂缝监测、隧道管片隆沉监测、隧道管片水平收敛监测等监测内容、监测方法、监测频率及控制标准的基础上,结合某地铁区间盾构法施工监测工程实践,分析所获得的横向地表沉降、隧道管片沉降或隆起、净空水平收敛监测的结果,得到相应横向地表沉降、纵向地表沉降和沉降过程的规律,以及隧道管片沉降或隆起、净空水平收敛监测变形规律。

Metro shield method construction monitoring is the importance of safety guarantee to ensure the metro construction. Analysis is made on the shield tunnel construction on the surface of building （structure） settling monitoring, building （structure） tilt, crack monitoring, tunnel segment lung sink monitoring, tunnel segment level convergence monitoring based on monitoring content, monitoring methods,monitoring frequency and control standard. Combined with monitoring engineering practice of a metro shield method construction, analysis is made on the obtained lateral surface subsidence, and tunnel segment settlement or uplift, clearance level convergence monitoring results. The corresponding transverse, longitudinal surface subsidence of the ground surface settlement and settlement process rules and tunnel segment settlement or uplift, clearance level convergence monitoring deformation are obtained.