Monitoring method for leakage of underground space waterproof curtain
A water-stop curtain and underground space technology, which can be used in liquid-tightness measurement using liquid/vacuum degree, fluid-tightness test, machine/structural component test, etc. It can solve potential safety hazards and inconspicuous data changes, etc. problem, to achieve the effect of accurate real-time monitoring
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Embodiment 1
[0037] Such as Figure 6 As shown, the present invention discloses a monitoring method for monitoring leakage of water-stop curtains in underground spaces, comprising the following steps:
[0038] 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 fiber.
[0039]Step 2: When the water-stop curtain leaks, the expander 10 expands naturally after encountering water, causing the cantilever beam 8 to bend upwards, which in turn causes the strain gauge 6 to bend, causing the resistance value of the strain gauge 6 to change. The expansion material 10 absorbs moisture, and causes the medium and distance between the upper pole plate 9 and the lower pole plate 11 to change at the same time, so that the ...
Embodiment 2
[0043] Such as Figure 3-5 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 .
[0044] The composite wet pressure sensor 2 comprises a strain gauge 6, a cantilever beam 8, an upper pole...
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