Construction method of large-diameter rain sewage pipeline assembling type component structure

Abstract

The invention relates to a large-diameter rain sewage pipeline assembling type component structure. The large-diameter rain sewage pipeline assembling type component structure is characterized in that a shallow curing cement layer is disposed at the bottom of the groove of a pipeline, a prefabricated pipeline base is disposed on the upper portion of the shallow curing cement layer, the pipeline base is provided with hoisting holes, rear grouting holes, form board grooves and positioning fasteners, the pipeline is supported on the pipeline base, rear grouting sealing bodies are formed in the gaps between the pipeline and the pipeline base by grouting through the rear grouting holes, separated annular positioning bands are evenly disposed on the pipeline, two ends of the separated annular positioning bands are respectively connected with the positioning fasteners on two sides of the pipeline base, a concrete backfill layer is disposed on the periphery of the pipeline, and gravel backfill layers are disposed on two sides of the pipeline. The large-diameter rain sewage pipeline assembling type component structure has the advantages that the prefabricated pipeline base is used, pipeline mounting integrity and stability are effectively enhanced by a series of reinforcing measures, and the structure is convenient in hoisting and good in economic and technological benefits.

Description

technical field [0001] The invention relates to a construction method for an assembled component structure of a large-diameter rainwater and sewage pipeline. It belongs to the field of municipal engineering and is suitable for the buried construction of large-diameter rainwater and sewage pipes. Background technique [0002] As an important infrastructure in cities and towns, municipal rainwater and sewage pipes are closely related to the daily life and work of residents. At present, in the construction of municipal rainwater and sewage pipelines, rainwater and sewage pipes are mostly laid on both sides of municipal roads, and the on-site working surface is small, resulting in that the hoisting belt is not easy to extract after the pipes are hoisted in place, the integrity of the pipeline is poor, the stability is low, and it is easy The pipes are offset and the straightness of the pipe installation cannot be guaranteed. At the same time, the construction period of the two ...

AI Technical Summary

Problems solved by technology

At present, in the construction of municipal rainwater and sewage pipelines, rainwater and sewage pipes are mostly laid on both sides of municipal roads, and the on-site working surface is small, resulting in that the hoisting belt is not easy to extract after the pipes are hoisted in place, the integrity of the pipeline is poor, the stability is low, and it is easy This causes the pipe to deviate, which cannot guarantee the straightness of the pipe installation. At the same time, the construction period of the two foundation pouring concrete is long, and the connection strength between the pipe and the foundation is generally low.

[0003] There are many kinds of prefabricated pipeline support structures, and they have achieved good engineering benefits under suitable working conditions, but there is still room for improvement, which is mainly reflected in: (1) The foundation is not treated, and the pipeline is directly installed The installation of the support leads to insufficient bearing capacity of the foundation and uneven settlement; (2) Part of the support structure does not consider the cross-sectional size of the pipeline. After the construction is completed, a large gap is easily formed between the pipeline and the support, and the support strength is low; (3) ) Part of the support structure does not consider the grouting after the support gap, and the connection between split supports, which affects the overall force of the pipeline and the support; (4) Part of the support structure has no strengthening connection measures for the pipeline after hoisting , the pipe body is easily damaged in the case of post-construction settlement, etc.

[0004] In view of this, in view of the technical difficulties and problems existing in the construction of traditional large-diameter rainwater and sewage pipelines, such as difficulties in hoisting construction, low overall stability of the pipeline after installation, insufficient connection strength with the base, and uneven settlement and cracking after plumbing, it is urgently needed at present. It is necessary to invent a rainwater and sewage pipeline assembly structure with simple hoisting construction, good overall structural stability, high support strength, and excellent economic benefits

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