Non-excavation leaking inspection well repairing method and repairing structure

Abstract

The invention relates to a non-excavation leaking inspection well repairing method and a repairing structure and belongs to the technical field of transformation of urban public pipeline facilities. The method comprises the steps that firstly, water accumulated in an inspection well is completely discharged, and a water leakage point is checked out; the water leakage point is blocked by means of a rapid-hardening anti-leakage concrete leaking stoppage agent on the inner wall of the inspection well; wet maintenance is conducted; primary single-layer shale brick walls are constructed on the inner wall and a base plate of the inspection well, brick wall seams are filled with waterproof mortar, and troweling is conducted on the inner side by means of waterproof mortar; after the strength meets the requirement, an SBS elastomer modified asphalt waterproof sheet material layer is integrally constructed on the inner side of the inspection well; a protective layer is constructed outside the waterproof sheet material layer again by means of shale bricks; and finally, the interior of the inspection well is flattened by means of waterproof mortar. The repairing structure comprises a leaking stoppage agent layer, the primary shale brick lining walls, the waterproof sheet material layer, last shale brick lining walls and a waterproof mortar layer which are added to the original inspection well. By the adoption of the non-excavation leaking inspection well repairing method and the repairing structure, the structural strength of a well chamber can be improved, maintenance cost can be reduced, and the problem of leakage of the inspection well can be solved.

Description

technical field [0001] The invention belongs to the technical field of renovation of urban public pipeline facilities, and in particular relates to a non-excavation leakage inspection well repair method and a repair structure. Background technique [0002] In recent years, urban waterlogging has occurred continuously. Urban public pipeline facilities, especially inspection wells for natural gas, wires and cables, often have rainwater backflow. After the waterproofing is destroyed, groundwater rises; Drop and so on. Therefore, how to quickly, efficiently and economically solve the leakage problem of inspection wells has become an urgent problem in the field of engineering operation and maintenance. The current conventional inspection well structure, such as figure 1 As shown, the shale brick wellhead 1 (thickness 240mm) excavated under the asphalt pavement 2, the reinforced concrete roof 4, the shale brick outer wall 5, the rigid waterproof layer 6, the reinforced concrete...

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Problems solved by technology

[0007] In order to overcome the problems existing in the repair of leakage inspection wells in the prior art, the present invention proposes a non-excavation repair method and repair structure for leakage inspection wells. The present invention rationally handles the internal waterproofing of existing inspection wells, Solved the leakage problem of the inspection well; saved the land area, saved the construction cost, and improved the leakage repair ability of the inspection well

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