Device and method for monitoring leakage of hydraulic structure body

Abstract

The invention discloses a device and a method for monitoring the leakage of a hydraulic structure body. The device comprises a plurality of leakage monitoring modules distributed in the hydraulic structure body, wherein each leakage monitoring module comprises first leakage monitoring units distributed up and down, second leakage monitoring units distributed left and right, and a telescopic support connected with the first leakage monitoring units and the second leakage monitoring units at the same time; leakage measuring optical fibers are distributed in the first leakage monitoring units and the second leakage monitoring units; the leakage condition of the hydraulic structure body is monitored through the leakage measuring optical fibers. The device disclosed by the invention has the characteristics of no heating, distribution and synchronism, and has prominent advantages on the aspects of reducing the monitoring cost, promoting the monitoring precision and the engineering practicability and the like; according to the monitoring method disclosed by the invention, the leakage monitoring modules are flexibly arranged in the hydraulic structure body, and the position and direction of leaked water are obtained through the calibration of the optical fibers and the comparison of the leakage measuring optical fibers, so that the method is simple in operation and accurate in result.

Description

technical field [0001] The invention relates to a positioning and directional monitoring of potential safety hazards of a hydraulic structure, in particular to a device and a monitoring method for monitoring leakage of a hydraulic structure. Background technique [0002] More than 90% of embankment breaches in my country and more than one-third of the damage in earth-rock dam projects are caused by leakage and various problems derived from leakage. Seepage is an important factor and prominent disease that affects the safe and long-term service of hydraulic structures. Research and develop advanced and practical leakage location and orientation instruments, devices and identification methods to reliably detect the location, range, direction and size of leakage in hydraulic structures, and take effective anti-seepage and anti-seepage measures in a timely manner, which is of great significance to ensuring project safety extremely important. [0003] At present, for the location ...

AI Technical Summary

Problems solved by technology

However, the existing distributed optical fiber penetration measurement technology at home and abroad often needs to use external heat sources to heat the optical fiber to be tested. If the outer packaging layer is damaged or leakage occurs during heating, it will pose a threat to the personal safety of the operator. In addition, in the service environment of hydraulic structures, it is often difficult to guarantee the peripheral current heating system, which greatly hinders the application and promotion of this technology in actual engineering

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