A Leakage Detection System for Underground Diaphragm Wall in Soft Soil Area

Abstract

The invention discloses a soft soil area underground continuous wall leakage detecting system, solves such defects as complex construction, difficult measurement and lower accuracy of measured results, and measures specific positions of leakage points more accurately. The transport process of underground ions and the gathering process of the underground ions are observed in real time, so that the specific positions of the leakage points can be obtained more quickly and accurately. The soft soil area underground continuous wall leakage detecting system relates to a underground continuous wall, an observation well, a precipitation well, a soft soil layer, an aluminum electrode, an electrifying device, an electrifying device positive pole, an electrifying device negative pole, an in-pit ground, an out-pit ground, the leakage points, aluminum ions, a sampling device, a slide cover, a bracket, an opening cylinder, a gauze, a separation plate, a round hole, a sensor, a circuit, a circuit fixator, a circuit negative pole and an acquiring system. The underground continuous wall is not limited by thickness and depth. The observation well is used for observing change of an underground water level on the outer side of a foundation pit; the gap and the depth of the observation well are determined according to actual engineering; and the observation well also can serve as a foundation pit outer side precipitation well. The precipitation well is a foundation pit inner side precipitation well, and can be used for observing a underground water level on the inner side of the foundation pit. The soft soil layer is a soil layer suitable for an electroosmosis method.

Description

technical field [0001] The invention relates to an underground continuous wall leakage detection system, which is suitable for the leakage detection of the underground continuous wall in foundation pit enclosure and belongs to the technical field of building construction. Background technique [0002] During the construction of the underground diaphragm wall, in order to prevent accidents caused by the leakage of the underground diaphragm wall, the leakage of the underground diaphragm wall is often detected before construction to ensure the safety of the foundation pit. In the foundation pit enclosure design, the underground diaphragm wall has the effect of waterproofing, but there are still more than 70% of foundation pit engineering accidents caused directly or indirectly by water damage. The surrounding environment is safe, causing loss of people's life and property. Since the underground concrete diaphragm wall is deeply buried in the soil, with a depth of more than ten...

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Problems solved by technology

[0012] In order to solve the deficiencies of complex construction, difficult measurement, and low accuracy of measurement results in the detection of leakage points of underground diaphragm walls, the invention provides a detection device for leakage points of underground diaphragm walls in soft soil areas, which effectively solves the problems of complex construction, measurement Difficulty, low accuracy of measurement results, etc., and at the same time, it can accurately measure the specific location of the leakage point

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