A detection method for the position of the leakage point of the underground concrete diaphragm wall

Abstract

This application relates to a detection method for the location of the leakage point of an underground concrete diaphragm wall, which includes S1: digging a preliminary survey well outside the diaphragm wall; S2: pumping groundwater inside the diaphragm wall; S3: observing the water level of the preliminary survey well to determine the drop of the water level The initial survey well corresponding to the diaphragm wall is the direction of the leakage point; S4: Dig a detection trench outside the leakage point area of ​​the diaphragm wall, and use a partition to divide the detection trench into multiple detection intervals; S5: Towards the detection trench Fill water and observe the water level of each detection interval. If the water level of a certain detection interval drops, determine the position of the leakage point corresponding to the continuous wall of the detection interval; S6: Pump out the water in the detection groove, take out the partition, and keep two partitions on both sides of the detection interval. Plate, backfill the rest of the detection area; S7: Irrigate the detection area step by step, and wait for a period of time after each irrigation, and observe the water level change. If the water level drops for a certain time, determine the position corresponding to the water level height as the final leak point position. The present application has the effect of improving the comprehensiveness of the position detection of the leakage point of the continuous wall.

Description

Technical field [0001] The present application relates to the field of continuous wall quality detection, in particular, involving a method of detecting a leakage point position of underground concrete continuous wall. Background technique [0002] The underground concrete continuous wall is referred to as the underground continuous wall or continuous wall, the continuous wall is the basic project uses a tank mechanical, along the peripheral axis of the deep excavation project, excavated a narrow deep deep groove. After the cleavage, the steel cage is placed in the groove, and the water concrete is fed with catheter method to build a cell slot. Since then, a continuous reinforced concrete wall is built underground, which is used as a cut, anti-seepage, load-bearing and water retaining structure. [0003] After the continuous wall is completed, in order to ensure the quality of the continuous wall, it is often necessary to prevent the continuous wall to prevent seepage detection. ...

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem of incomplete detection of the leakage point position of the diaphragm wall, this application provides a detection method for the leakage point position of the underground concrete diaphragm wall

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