Basement waterproofing and leakage stoppage method based on combination of grouting and internal and external dredging

Abstract

The invention provides a basement waterproofing and leakage stoppage method based on combination of grouting and internal and external dredging. The basement waterproofing and leakage stoppage methodcomprises the steps of 1, conducting grouting, 2, conducting internal dredging, and 3, conducting a peripheral dredging measure, wherein in the step 2, with regard to a main water seepage source, an annular main blind ditch is arranged by utilizing an already excavated building surface layer, a water-permeable first branch blind ditch (10) and a plurality of corresponding pressure relief ports areformed at the edge of the annular main blind ditch, water is guided and drained to an originally designed water collection pit, whether the water quantity of the water collection pit exceeds the standard or not is checked, and if so, a drainage facility is additionally arranged, so that a complete set of basement sewage hoisting equipment is formed; in a second mode, with regard to a secondary water seepage source, water-permeable second branch blind ditches (11) are uniformly formed in various areas, and a small amount of water seeped out from cracks of waterproof boards permeates through machine sand and broken stone or slag in the building surface layer to flow into the second branch blind ditches (11), and then is guided and drained to the original water collection pit or a nearby original imperviousness open ditch; and in the step 3, two blind ditch collecting wells (13) with the peripheries being water-permeable are made newly, a concrete drainage pipe (14) is embedded, and thewater is drained to a relatively far hillside 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 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 safety of the basement. The scope of water leakage will be analyzed in the actual basement construction. The connection between C50 impermeable concrete and C30 impermeable concrete There will be serious water leakage at the joints. There are also many waterproof ...

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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