Inspection well used for cutting over large-pipe-diameter pressure sewage pipe and cutover method

Abstract

The invention discloses an inspection well used for cutting over a large-pipe-diameter pressure sewage pipe and a cutover method. The inspection well comprises a main well chamber and an auxiliary well chamber, the main well chamber is connected with an original pipe water inlet, the auxiliary well chamber is connected with an original pipe water outlet, a newly built pipe water outlet is formed in the bottom of the main well chamber and is connected with a newly built pipe, a partition wall is arranged between the main well chamber and the auxiliary well chamber, a guide rail is reserved on the partition wall, a valve is movably and cooperatively arranged on the guide rail, at least one water pump installation chamber is arranged on the auxiliary well chamber, and a water pump is arrangedon the water pump installation chamber. By conducting pipe cutover construction on the inspection well of a limited structure, on the premise of continuous streams, cutover construction can be conducted, the operability of the inspection well is improved, the inspection well is of a practical and safe sewage pipe rerouting structure, the structure main body is molded by casting concrete, the cutover method is mature, safe and reliable in technology, the quality of a status-quo sewage pipe can be well protected, and meanwhile, the purpose of continuous-stream cutover is achieved.

Description

technical field [0001] The invention belongs to the technical field of cutover of pressurized sewage pipelines, and in particular relates to an inspection well and a cutover method for cutover of large-diameter pressurized sewage pipelines. Background technique [0002] During the construction of municipal projects, the underground pipelines are complex, and the construction often encounters conflicts between the existing pipelines and new projects. In this case, it is necessary to cut and connect the existing pipelines. Among them, the sewage pipes are deeply buried and need to continue to work, otherwise the sewage cannot be discharged and will affect the lives of surrounding residents. [0003] In this case, the traditional approach is to avoid pressure pipes as much as possible, cut over non-pressure pipe sewage pipes or cut off pressure pipes. According to the traditional cut-off method, the original pipeline needs to be cut and re-connected by butt welding, and the ti...

AI Technical Summary

Problems solved by technology

Large-diameter pressure sewage pipes have a large sewage discharge area and a large discharge volume. If the flow is interrupted for a long time, it will have a great impact on residents

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