地铁盾构近距离上跨既有地铁线路自动化监测技术研究

Research on Automatic Monitoring Technology of Metro Shield Crossing Existing Metro Line in Short Distance

在建地铁隧道近距离穿越既有地铁隧道存在着施工安全风险的问题,而自动化监测技术具有能够全天候、实时监测既有线路的优势,可以及时为施工提供依据,从而提高既有隧道运行的安全与稳定性。郑州市在建地铁3号线盾构区间上跨2号线既有线路的施工中,对既有地铁线路进行自动化监测,实时反馈数据,及时调整和优化盾构掘进参数,保证了施工安全。

The construction safety risk exist in the metro tunnel under construction passing through the existing metro tunnel in short distance. The automatic monitoring technology has the advantages of all-weather and real-time monitoring of the existing line, which can provide the basis for the construction in time, so as to improve the safety and stability of the existing tunnel operation. In the engineering of shield interval of Zhengzhou Metro Line 3 crossing the existing Line 2, the automatic monitoring of the existing metro line can feedback data in real time, timely adjust and optimize the shield tunneling parameters, ensure the construction safety.