Tunnel full-life-cycle monitoring and early warning system and building method

Abstract

The invention discloses a tunnel full-life-cycle monitoring and early warning system and a building method, and the system comprises a plurality of vibrating wire sensors and fiber grating sensors, a data collection device, a data processing and transmission device, and a data storage and analysis device which is used for receiving monitoring data transmitted by the data processing and transmission device and processing themonitoring data. When the monitoring system automatically recognizes the dangerous monitoring data, an early warning is given out. Compared with the prior art, the tunnel structure internal stress and surface strain joint monitoring and early warning system adopted by the invention realizes the automatic monitoring of the structure safety of the whole life cycle from construction to operation of the tunnel, and realizes the automatic evaluation and early warning functions of the tunnel structure safety in combination with the evaluation and early warning system integrated with the server. The system and the construction method are efficient, convenient and fast, tunnel construction and later operation can be guided in time, and the system and the construction method have extremely high practical significance.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a monitoring and early warning system and a building method for the entire life cycle of a tunnel. Background technique [0002] At present, with the planning and construction of a number of highways in Tibetan areas and railways into Tibet, more and more super-deep tunnels need to be built. In the mountainous areas of western my country, due to the extremely special regional geological structure environment, these deep rock mass projects are often in a relatively complex geomechanical environment. Therefore, the tunnel structure is often under complex stress conditions, which brings great difficulties to the construction of the tunnel. [0003] After the tunnel construction is completed and put into operation, the durability of the tunnel structure cannot be ignored. Leakage, cracking and other diseases will seriously affect the safe operation of the tunnel. In sever...

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Problems solved by technology

[0006] 1. Tunnel construction monitoring is mainly based on deformation monitoring. When deformation is obvious, most of the structural force has exceeded the limit, and the structure may have entered a plastic state, which is difficult to meet subsequent normal use. Monitoring has obvious hysteresis

[0007] 2. The monitoring sensors installed during the tunnel construction period are greatly affected by the tunnel construction, and are prone to problems of inaccurate monitoring and low sensor survival rate

[0008] 3. It is difficult to fully reflect the stress state of the tunnel structure by installing a single monitoring sensor

[0009] 4. Tunnel monitoring mostly serves the tunnel construction, and the monitoring during the operation period is too little to serve the whole life cycle of the tunnel

[0010] 5. Since the vibrating wire sensor is installed inside the tunnel structure, when the sensor monitoring is inaccurate or fails, it cannot be corrected or replaced later, which is a huge difficulty in monitoring the health status of the tunnel structure throughout its life cycle

[0011] 6. After the sensor is installed, most of the monitoring data needs to be collected and processed manually. When there is a problem with the structure, it is difficult to reflect it in time

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