Full-tunnel safety monitoring system and implementation method

Abstract

The invention relates to a full-tunnel safety monitoring system. The system comprises a GPS system and an optical fiber strain monitoring system which are electrically connected with a data acquisition center, and a strain monitoring optical cable which is electrically connected with the optical fiber strain monitoring system and is buried below a tunnel monitoring area. The optical fiber strain monitoring system is an optical fiber analyzer, and the GPS system is used for monitoring the overall settlement of a tunnel. The optical fiber strain monitoring system realizes tunnel omnibearing strain monitoring through continuous optical cables and provides accurate positioning, the measured deformation is relative deformation, and deformation quantities can be accumulated. The system has highmonitoring precision, the early warning of large accident deformation of the tunnel can be achieved, the tunnel deformation direction can be judged, the intelligent degree is high, an abnormal condition can be accurately positioned, various means for alarming can be realized, the monitoring service life is long, the monitoring in the whole life cycle of the tunnel can be realized, the maintenancecost is low, and the later maintenance is nearly zero.

Description

technical field [0001] The invention belongs to the technical field of tunnel safety, and in particular relates to a full tunnel safety monitoring system and an implementation method. Background technique [0002] The tunnel settlement and structure monitoring technology in the prior art is mainly realized by geological radar, seismic wave method, CT, etc. These methods can ascertain the condition of the tunnel lining and the surrounding rock conditions at a certain time, but cannot determine the conditions of the tunnel lining and surrounding rock conditions. Real-time monitoring and alarming of changes in the tunnel. Traditional monitoring requires a large number of personnel and equipment to enter the tunnel for monitoring, which will inevitably affect or even interrupt the tunnel traffic. Therefore, there is an urgent need for a real-time online tunnel lining structure monitoring method, which can provide uninterrupted monitoring data for 24 hours, and provide alarm and ...

AI Technical Summary

Problems solved by technology

[0002] The tunnel settlement and structure monitoring technology in the prior art is mainly realized by geological radar, seismic wave method, CT, etc. These methods can ascertain the condition of the tunnel lining and the surrounding rock conditions at a certain time, but cannot determine the conditions of the tunnel lining and surrounding rock conditions. Real-time monitoring and alarming of changes in the tunnel. Traditional monitoring requires a large number of personnel and equipment to enter the tunnel for monitoring, which will inevitably affect or even interrupt the tunnel traffic.

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