A method for repairing and reforming an existing wall-piercing casing waterproof sealing structure

Abstract

The present invention provides a method for repairing and reforming the waterproof sealing structure of the existing wall-piercing casing, the repairing and reforming method at least includes: removing the flexible sealing assembly on the backwater side of the wall-piercing bushing, and cutting off the medium pipeline on the backwater side ;Put a compensation sleeve on the medium pipe on the back water side of the wall sleeve, and seal the compensation sleeve with the end face of the back water side of the wall sleeve; connect the inner wall of the compensation sleeve and the wall sleeve with the medium A flexible sealing structure with pre-tightening force is set in the gap between the pipes; standard vibration-absorbing expansion joints are used to seal and connect the cut-off medium pipes. The maintenance and transformation method of the present invention is only constructed on the backside of the wall without damaging the waterproof structure and heat preservation structure on the waterfront side, and the ability to resist underground seepage pressure is improved due to the absorption of the stress by the vibration-reducing corrugated compensator, which is suitable for In the application occasion where the medium pipeline with high osmotic pressure in the groundwater table passes through the outer protective wall of buildings and structures.

Description

technical field [0001] The invention belongs to the professional technical field of water supply and drainage in industrial buildings, civil buildings, and municipal buildings, and relates to a waterproof sealing technology when a medium pipeline passes through the wall of an outer protective structure, in particular to a waterproof sealing structure of an existing wall-through casing when the structure fails methods of repair and modification. Background technique [0002] At present, in the water supply and drainage majors of industrial buildings, civil buildings, and municipal engineering, when medium pipes are buried in the groundwater level and pass through the outer walls of buildings, structures, etc., they usually use Figure 1A The waterproof and sealing structure of the wall-piercing casing is shown to achieve the predetermined waterproof and sealing effect. For the on-site environment accompanied by the settlement deformation of buildings and structures and the wor...

AI Technical Summary

Problems solved by technology

When the rigid sealing component on the water-facing side of the wall bushing 02 fails (such as leakage), maintenance is required. Due to the structural limitations of the existing wall bushing 02, it can only be excavated from the outside of the building wall and replaced. Sealing materials consume a lot of manpower and material resources. During the repair process, the waterproof structure and thermal insulation structure outside the outer wall will inevitably be damaged, which will increase the difficulty and cost of maintenance.

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