Non-water-stopping grouting repairing method for expansion joint of sewage treatment structure

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...

AI Technical Summary

Problems solved by technology

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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