Underground space waterproof curtain leakage monitoring device

A water-stop curtain and monitoring device technology, which is applied to measuring devices, electromagnetic measuring devices, and through detecting the appearance of fluid at leakage points, can solve problems such as potential safety hazards and insignificant data changes, and achieve accurate real-time monitoring.

Inactive Publication Date: 2021-02-12
李金芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the actual application of the above-mentioned prior art, there are subtle leakage points that are missed. When there is a slight leakage, the monitored data does not change significantly, and there are potential safety hazards.

Method used

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  • Underground space waterproof curtain leakage monitoring device
  • Underground space waterproof curtain leakage monitoring device
  • Underground space waterproof curtain leakage monitoring device

Examples

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Effect test

Embodiment 1

[0032] Such as Figure 1-5 As shown, a water-stop curtain leakage monitoring device for underground space, the water-stop curtain leakage monitoring device includes an inner sensing system composed of a plurality of inner sensing modules, an outer optical fiber system and a data terminal 4; The sensing module includes a composite wet pressure sensor 2, a micro-motion sensing optical fiber, a single-chip microcomputer 1, and a wireless communication module 3; the composite wet-pressure sensor 2, the wireless communication module 3 are connected to the single-chip microcomputer 1; The optical fiber and the optical time domain reflectometer arrange the micro-motion sensing optical fiber along different monitoring areas, and connect the optical time domain reflectometer; the optical time domain reflectometer and the inner sensing system are connected to the data terminal 4 .

[0033]The composite wet pressure sensor 2 comprises a strain gauge 6, a cantilever beam 8, an upper pole ...

Embodiment 2

[0041] The present invention also provides a method for monitoring leakage of water-stop curtains in underground spaces, using the above-mentioned device, comprising the following steps:

[0042] Step 1: Establish a monitoring area on the outside of the water-stop curtain in the underground space, divide the monitoring area into n rectangular sub-areas of the same size, place an inner sensor module and number it in each rectangular sub-area, and place a micro sensor module on the outside of the water-stop curtain. Motion sensing optical fiber;

[0043] Step 2: When the water-stop curtain leaks, the expander 10 naturally expands after encountering water, causing the cantilever beam 8 to bend upward, which in turn causes the strain gauge 6 to bend, causing the resistance value of the strain gauge 6 to change; the expander 10 absorbs water At the same time, the medium and distance between the upper plate 9 and the lower plate 11 change, so that the capacitance value of the upper ...

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Abstract

The invention discloses an underground space waterproof curtain leakage monitoring device. The waterproof curtain leakage monitoring device comprises an inner side sensing system composed of a plurality of inner side sensing modules, an outer side optical fiber system and a data terminal; each inner side sensing module comprises a composite wet pressure sensor, a single-chip microcomputer and a wireless communication module; the composite wet pressure sensors, the wireless communication modules and the single-chip microcomputers are connected; the outer side optical fiber system comprises micro-motion sensing optical fibers and an optical time domain reflectometer, and the micro-motion sensing optical fibers are arranged along different monitoring areas and connected with the optical timedomain reflectometer; and the optical time domain reflectometer and the inner side sensing systems are connected with a data terminal. According to the invention, tiny leakage points of a waterproof curtain can be effectively and accurately monitored, the leakage degree can be effectively and accurately evaluated, and dangerous events are avoided.

Description

technical field [0001] The invention relates to the technical field of water-stop curtain leakage monitoring for underground space structures, in particular to a water-stop curtain leakage monitoring device for underground space. Background technique [0002] The water-stop curtain as an underground space structure often suffers from different degrees of leakage due to construction techniques or construction problems. When there is a difference in water head inside and outside the foundation pit, there will be different degrees of water leakage. The leakage of the water-stop curtain will have a great impact on the foundation pit itself and its surrounding environment. If the leakage is serious, it may also cause quicksand , Piping phenomena, leading to ground subsidence, pipeline rupture, building cracking, etc., and even life-threatening, so the leakage monitoring of the water-stop curtain in the underground space is particularly important, especially the precise location o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/04G01B7/16G01N27/22G01L1/24E02D33/00E02D19/18G08C17/02H04W84/18
CPCE02D19/18E02D33/00G01B7/18G01L1/242G01M3/042G01N27/225G08C17/02H04W84/18
Inventor 李金芳
Owner 李金芳
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