盾构下穿机场的变形控制研究及监督管理

Research on Deformation Control and Supervision of UnderppassAirport of Shield

以杭州地铁1号线三期工程SG1-3-3标区间向阳路站—萧山机场站区间为例,针对引起地表变形的5个因素,对盾构穿越机场的施工、监测方法及监督管理要点展开研究。通过对监测结果进行分析,表明盾构下穿机场施工达到了预期效果,并得出结论:采用盾构法施工时不可避免会引起地表沉降,需采取具有针对性的措施,保证施工安全。

This paper takes Xiangyang Road Station to Xiaoshan Airport station in SG1-3 section ofHangzhou Metro Line 1 Phase II project as an example to study the construction,monitoring methods and key points of supervision and management of shield crossing airport in view of five factors causing surface deformation.Through the analysis ofmonitoring results,it is shown that the construction of shield tunneling through the airport has achieved the expected effect,and the conclusion is drawn:the shield construction method will inevitably cause the surface settlement,it is necessary to take specific measures to ensure the construction safety.