Tunnel water leakage detection method and device based on conductivity

Abstract

The invention relates to a tunnel water leakage detection method and device based on conductivity. By distributing electrode arrays on the inner wall of a tunnel and sequentially applying voltage to every two adjacent electrodes, the wall of a tunnel lining wall and the electrodes can form a power supply loop, whether leakage exists between the electrodes or not is judged according to the current condition in the loop, the detection results of all the electrodes are synthesized, and the shape of the leakage area of the wall of the tunnel can be estimated. Through the method and device, positioning can be performed and an alarm can be given in time when water leakage occurs so that tunnel management staff can find and govern the water leakage damage of the tunnel in the first time. Besides, the development of the existing water leakage damage can be traced for a long time, and observation on the evolution tendency of structural performance of the tunnel can be facilitated.

Description

technical field [0001] The invention relates to the technical field of tunnel water leakage detection, in particular to a method and device for detecting tunnel water leakage based on electrical conductivity. Background technique [0002] With the improvement of the modernization level of our country's cities and the acceleration of people's life rhythm, the subway is gradually becoming an important part of the public transportation system in big cities due to its convenient and fast advantages. A large number of provincial capital cities and some second-tier cities are investing huge sums of money to build new subways . At the same time, the problems facing the healthy service of subway tunnels have become increasingly prominent. Leakage is the most common and typical structural disease of subway tunnels. Many urban subways in my country are plagued by serious water leakage. [0003] Under the long-term erosion of groundwater, the concrete and steel bars in the tunnel lin...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a tunnel water leakage detection method and device based on electrical conductivity in order to overcome the above-mentioned defects in the prior art. By arranging an electrode array on the inner wall of the tunnel, the concrete wall and the electrodes form a power supply circuit. Medium current is used to detect leaking water to solve the problems existing in existing detection methods

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