Tunnel lining water pressure monitoring system testing device and testing method

Abstract

The invention discloses a tunnel lining water pressure monitoring system testing device. The device comprises a box body and a tunnel model fixed in the box body. Two ends of the tunnel body are communicated with the outside world. An outer wall of the tunnel model and an inner wall of the box body form an enclosed space. The enclosed space is filled with a surrounding rock model. The box body isintercommunicated with a water tank through utilization of water inlet pipes. Drainage valves are set on the box body. Displacement meters are set on the outer wall of the tunnel model. Piezometric tubes are buried in the surrounding rock model. The piezometric tubes extend outside of the box body and are connected with pressure gages. The tunnel model comprises permeable and waterproof tunnel models. The invention also discloses a testing method based on the tunnel lining water pressure monitoring system testing device. The invention aims at providing the tunnel lining water pressure monitoring system testing device and the testing method, for the problem that according to an existing water pressure monitoring system, effectiveness of the device and accuracy of monitoring data are not tested in advance. The effectiveness and accuracy of a tunnel lining water pressure monitoring system can be ensured.

Description

technical field [0001] The invention belongs to the technical field of tunnel lining water pressure monitoring system. Specifically, it relates to a test device and a test method for a tunnel lining water pressure monitoring system. Background technique [0002] Under special geological conditions such as karst, although the tunnel is designed with a drainage system, there may still be a dangerous situation where the tunnel lining is subjected to high water pressure in a short period of time under extreme weather conditions. For example, after long-term rainfall on the surface, the water pressure behind the tunnel lining in karst tunnels and groundwater horizontal circulation zones may rise rapidly. In recent years, on the newly opened Guizhou-Guangzhou Railway and Yuli Railway in the mountainous areas of Southwest China, the water pressure behind the lining of many karst tunnels suddenly increased during the rainy season, causing the lining to deform, the inverted arch to ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tunnel lining water pressure monitoring system test device and test method to solve the problem that the current water pressure monitoring system does not test the effectiveness of the device and the accuracy of the monitoring data in advance, which can ensure that the tunnel lining Effectiveness and Accuracy of Water Pressure Monitoring Systems

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