Basement waterproof and plugging method based on grouting and combination of internal and external dredging

Abstract

The invention provides a basement waterproof plugging method based on the combination of grouting and internal and external dredging, including: step 1, grouting, step 2, internal dredging, aiming at the main water seepage source, using the excavated building surface to set an annular main underground ditch, And set the first permeable undercover ditch (10) and corresponding multiple pressure relief outlets on its edge, drain the water to the original design sump, and check whether the water volume of the sump exceeds the standard. If it exceeds the standard, add drainage facilities to form basement sewage A complete set of lifting equipment; method 2, for the secondary water seepage source, evenly set the second branch culvert (11) in each area, so that a small amount of water seeping from the cracks of the waterproof board can pass through the machine sand in the building surface Stones or slag flow into the second branch dark ditch (11), and then lead to the original sump or the nearby original impermeable open ditch. Step 3, peripheral dredging measures, newly make two permeable blind ditch sump wells (13) , bury a concrete drainage pipe (14), and discharge to the far half-mountainside water outlet (15).

Description

technical field [0001] The invention relates to the technical field of industrial buildings and public buildings, in particular to a basement waterproof and plugging method based on the combination of grouting and internal and external dredging. Background technique [0002] see figure 1 , the prior art basement column foundation top surface and waterproof board structure includes C50 anti-seepage concrete (5) and C30 anti-seepage concrete (6) connected orthogonally, frame column 1 and waterproof board 2, and frame column 1 and waterproof board 2 are installed In the backfill 4, there will be water leakage around the waterproof board on the top surface of the basement column foundation, which will seriously affect the use safety of the basement. After analyzing the scope of water leakage, in actual basement construction, the difference between C50 impermeable concrete and C30 impermeable concrete There will be very serious water leakage at the joints of the waterproof board...

AI Technical Summary

Problems solved by technology

However, according to the experience of a large number of construction sites, it is known that the early blockage is ineffective, and the location of the main water seepage source has not been found, so the problem of water leakage in the basement cannot be effectively solved

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