电水平尺沉降自动化监测系统在隧道施工中的应用

Application of Automatic Monitoring System of Electric Horizontal Ruler Settlement in Tunnel Construction

为降低新建隧道施工对在运营地铁的影响,确保地铁的正常运营,结合地铁新建隧道对运营地铁隧道监测实例,从电水平尺沉降监测的原理、校准、布设原则及具体实例方面阐述了上海北横通道穿越轨交7号线影响监测。具体在隧道内布置沉降监测点,组建自动化监测系统,确定监测基准点及预警系统,采用电水平尺实时自动监测和分析沉降曲线。实践证明,电水平尺自动化沉降监测系统能及时、准确反应地铁隧道实时沉降变化情况,节约大量的人力、物力和财力,并能保证人员的安全。

In order to reduce the influence of the new tunnel construction on the operation of the subway and ensure the normal operation of the subway,combined with the monitoring example of the new subway tunnel,this paper expounds the influence monitoring of the Shanghai North Cross through Rail Line 7 from the aspects of the principle,calibration,layout principle and concrete examples.The settlement monitoring points are arranged in the tunnel,the automatic monitoring system is set up,and the monitoring datum and early warning system are determined,and the settlement curve is monitored and analyzed automatically by the electric horizontal ruler in real time.Practice has proved that the automatic settlement monitoring system of electric horizontal ruler can reflect the real-time settlement change of subway tunnel in time and accurately,save manpower,material and financial resources,and ensure the safety.