Non-water-stopping grouting repairing method for expansion joint of sewage treatment structure
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A sewage treatment and repair method technology, applied in the field of expansion joint repair, can solve the problems of large construction area, many construction equipment, high repair cost, etc., and achieve the effect of small construction work and less construction equipment
Active Publication Date: 2019-05-28
重庆中法环保研发中心有限公司 +1
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However, the above-mentioned construction methods all have defects such as large construction area, many construction equipments, and professional teams are required for construction, and the repair cost is extremely high, so they are not suitable for repairing expansion joints of sewage treatment structures.
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] Such as figure 2 As shown, the present invention discloses a method for repairing expansion joints of sewage treatment structures without stopping water grouting, comprising the following steps:
[0030] S1. Clean the caulking material above the waterstop of the expansion joint to be repaired along the length direction of the expansion joint to be repaired to form a caulk;
[0031] The caulking material above the waterstop can be removed with a hammer and chisel. During the removal process, all caulking materials need to be removed, especially the concrete interface with the seam wall. If the thickness of the bottom plate of the entire sewage treatment structure is 500mm, the waterstop is usually installed at a depth of 250mm, so the length of the chisel into the caulking can be used to determine the cleaning depth. After cleaning the joints, use a ...
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Abstract
The invention discloses a non-water-stopping grouting repairing method for an expansion joint of a sewage treatment structure. The non-water-stopping grouting repairing method for the expansion jointof the sewage treatment structure comprises the following steps: cleaning a caulking material above a waterstop of an expansion joint to be repaired in the length direction of the expansion joint to be repaired to form a caulking joint; taking a water-swellable water stopping strip, wherein a grouting through hole is vertically formed in the water-swellable water stopping strip, and two sides of the grouting through hole are provided with water outlets; embedding the water-swellable water stopping strip into the cleaned caulking joint so that a grouting cavity is formed in the caulking joint;and pouring a grouting material into the grouting cavity through the grouting through hole until the grouting cavity is filled with the grouting material. Compared with an existing repairing method, the non-water-stopping grouting repairing method for the expansion joint of the sewage treatment structure in the technical scheme disclosed by the invention has the characteristics of small construction engineering amount, less construction equipment, low requirements on professionality of constructors, low construction cost and the like, and is suitable for repairing the expansion joint of the sewage treatment structure without stopping water.
Description
technical field [0001] The invention relates to the technical field of repairing expansion joints, in particular to a method for repairing expansion joints of sewage treatment structures without continuous water grouting. Background technique [0002] Usually, structures are artificial structures that do not have, contain or provide human habitation functions, such as water towers, pools, filter ponds, clarifiers, biogas digesters, etc. In the sewage treatment industry, sewage treatment structures are mainly the types of engineering equipment for each treatment unit in the process of sewage treatment. Such as regulating tanks, grids, grit chambers, sedimentation tanks, aeration tanks, sewage disinfection tanks, sludge digestion tanks, hydrolytic acidification tanks, air flotation tanks, grease traps, filters, biological contact oxidation tanks, etc. [0003] Such as figure 1 As shown, the expansion joints of existing sewage treatment structures include waterstops and caulk...
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