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Construction method for preventing temperature deformation and leakage in glass fiber reinforced mortar sewage pipelines

A technology for sand-filled FRP and sewage pipes, which is applied in sewer pipe systems, waterway systems, water supply devices, etc. It can solve the problems of poor pipe installation quality, leakage, and large influence of temperature changes in chemical building material pipes, etc., and achieve good social benefits. and economic benefits, prevent leakage, and reduce the effect of urban soil environmental pollution

Active Publication Date: 2014-12-24
JINAN URBAN CONSTR GRP
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Problems solved by technology

[0002] Chemical building material sewage pipelines are more and more widely used in municipal drainage projects, but chemical building material pipelines such as glass fiber reinforced plastic pipes and HDPE pipes are greatly affected by temperature changes, resulting in deformation due to temperature differences. Leakage is easy to occur, and the quality of pipeline installation is difficult to pass

Method used

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Examples

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Effect test

specific Embodiment approach

[0014] 1. The sewage pipeline is covered with pipe felt to reduce the deformation caused by the temperature difference caused by the light on the sewage pipeline of glass chemical building materials, which is convenient for construction and low in cost.

[0015] 2. AJ302 concrete recasting agent is used in the foundation of the inspection well, that is, a layer of AJ302 concrete recasting agent is applied to the connection between the inspection well wall and the foundation and the glass fiber reinforced plastic sand pipe to ensure the airtightness of the inspection well in the foundation.

[0016] 3. Coarse the pipe at the connection part between the pipe and the inspection well, and brush the interface agent. The connection between the sewage pipeline and the structure adopts the method of "intermediary method". When the pipeline is connected with double rubber rings, the connection with the structure can be placed in the form of rubber rings, which can be backfilled as soon ...

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Abstract

The invention discloses a construction method for preventing temperature deformation and leakage in glass fiber reinforced mortar sewage pipelines. The method includes: covering a pipeline to prevent temperature deformation, applying AJ302 concrete re-pouring agent to the foundation of an inspection chamber to guarantee tightness of the foundation of the inspection chamber, wrapping pipe joints and the pipeline with resin for leakage prevention, and subjecting the sewage inspection chamber and the sewage pipeline to tightness test by a plugging tight fitting composed of steel plates and an air bag. Practice in multiple projections shows that the method is simple and feasible, water tightness succeeds at a higher rate, urban soil pollution is relieved effectively, finishing after engineering construction is reduced, construction period is shortened, and benefits of enterprises are increased.

Description

technical field [0001] The invention relates to a construction method of a municipal drainage pipeline, in particular to a construction method for preventing temperature-varying leakage of a sewage pipeline with a glass fiber reinforced plastic sand pipe. Background technique [0002] Chemical building material sewage pipelines are more and more widely used in municipal drainage projects, but chemical building material pipelines such as glass fiber reinforced plastic pipes and HDPE pipes are greatly affected by temperature changes, resulting in deformation due to temperature differences. Leakage is easy to occur, and the quality of pipeline installation is difficult to pass. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an economical and effective construction method of a glass fiber reinforced plastic sand-included municipal drainage pipeline with reasonable construction technology, preventing tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/06
Inventor 孙杰杨增礼张庆学孙义波张永亮
Owner JINAN URBAN CONSTR GRP
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