Internal liner of drainage pipe or dirt discharge pipe for operation with water and construction method thereof for operation with water

Abstract

The invention discloses an internal liner of a drainage pipe or a dirt discharge pipe for operation with water and a construction method thereof for the operation with the water. The internal liner comprises a caisson and a rubber internal liner pipe, wherein the caisson can be released down to the inside of a drainage pipe or a dirt discharge pipe which needs to be carried out internal liner construction along an inspection well, one end of the rubber internal liner pipe is fixed on the side wall of the caisson in a sealed way, the rubber internal liner pipe is communicated with the inside of the caisson, and the inspection well is an upstream inspection well positioned at the upstream part of the drainage pipe or the dirt discharge pipe. The construction method for the operation with the water comprises the following steps of: (1), carrying out construction preparation; (2), exploding the upstream inspection well; (3), releasing down the rubber internal liner pipe; (4), releasing down the caisson; and (5), recovering a pavement. The internal liner for the operation with the water, which is provided by the invention, has simple and reasonable structure, novel design, low construction cost and high construction speed, can carry out the operation with the water without carrying out diversion or closure on the original pipeline, and reduces the influence of municipal pipelines on other pipelines because of diversion or closure; meanwhile, the invention has the advantages of construction difficulty lowering of the internal liner, high construction speed, long-distance repair,low technical requirement for workers, low manufacturing cost and the like.

Description

technical field [0001] The invention relates to a pipeline lining and a construction method thereof, in particular to a water-carrying drainage pipe or sewage pipe lining and a water-carrying construction method thereof. Background technique [0002] During the use of municipal drainage pipes or sewage pipes, the lining is mainly used in the repair of drainage pipes or sewage pipes after they are broken or burst, and in the anti-leakage treatment of pipelines. At present, the domestic lining construction methods mainly include flipping method, inner sleeve There are three construction methods: pipe method and improved casing method. [0003] Among them, the overturning method mainly has the following advantages: 1. Fast construction speed and short construction period; 2. Small footprint and little impact on traffic operation; 3. The completed lining has no joints, smooth surface and good fluidity; 4. It can be adapted to non-circular sections and curved pipe sections; 5. N...

AI Technical Summary

Problems solved by technology

However, in actual use, the overturning method also has the following defects and deficiencies: 1. It is necessary to divert or intercept the water flow in the pipeline to ensure anhydrous operation; 2. It requires special construction equipment and requires a large investment; The technical level is high; 4. The project scale is small and the cost is high; 5. Each project requires different braided tubes to be customized

However, in actual use, the inner casing method also has the following defects and deficiencies: 1. It is necessary to divert or intercept the water flow in the pipeline to ensure no water operation; 2. The loss of the flow section is relatively large, but when the pipe diameter is large The impact is small; 3. The annular gap requires grouting; 4. The connection of the branch pipe needs to be excavated; 5. It is generally suitable for pipes with circular cross-sections

However, in actual use, the improved casing method also has the following defects and deficiencies: 1. It is necessary to divert or intercept the water flow in the pipeline to ensure no water operation; 2. The branch pipe needs to be excavated; 3. The old pipeline Structural damage will lead to construction difficulties; 4. It is only suitable for repairing straight circular pipes

[0006] In summary, in the existing lining construction technology field, there is no technology for lining with water construction

Images