Construction method of steel wire mesh framework plastic composite pipe

A construction method and technology of composite pipes, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of low permanent mechanical strength, abrasion resistance, temperature resistance and impact resistance, and rigid dimensional stability And poor creep resistance and other problems, to achieve the effect of uniform and reliable composite, good dimensional stability and high rigidity

CN103883797AInactive Publication Date: 2014-06-25WUHAI HIGHWAY ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-06-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a construction method of a steel wire mesh framework plastic composite pipe. The construction method includes the following steps that a pipe ditch is dug; a pipe and a pipe fitting are checked in place in an on-spot mode; the pipe and the pipe fitting are connected in a butt mode; electric smelting welding is performed; cooling and pipe underground-placing are performed; after a pipeline is installed and pipe laying and underground-placing are performed, primary backfilling to 500 mm is performed; the laid pipeline receives a segmented intensity and tight pressure test; an airtight pressure test is performed on a whole laid pipeline, after the pipeline is installed and pipe laying and underground-placing are performed, secondary backfilling to the grade level elevation is performed; acceptance of work is performed. The construction method of the steel wire mesh framework plastic composite pipe can effectively solve the interface stripping problem of steel-HDPE, a pipe end sealing technology which is extremely strictly required in the past can become convenient and reliable, the creep resistance is good, mechanical strength is durable, rigidity is high, shock resistance is good, size stability is good, moderate flexibility is achieved, and two materials of hard steel and flexible plastics are composited evenly and reliably.
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Description

technical field

[0001] The invention belongs to the application field of composite pipe construction, and in particular relates to a construction method of steel mesh skeleton plastic composite pipe. Background technique

[0002] At present, with the development of the economy and the progress of the society, the steel mesh skeleton plastic composite pipe is a patented new composite pipe with independent intellectual property rights. This kind of wire mesh skeleton plastic composite pipe uses coated high-strength steel wire to wind and strengthen the existing pure PE pipe, so that the nominal pressure of the pipe can easily reach: 5MPa or more (diameter ≤ φ200), 2MPa (diameter ≤ φ400 ), and the wall thickness of the pipe is lower than that of pure PE pipe. Judging from the current research status, the construction methods of steel mesh skeleton plastic composite pipes are rarely studied in engineering, and the existing construction methods of steel mesh skeleton plastic com...

Examples

Embodiment Construction

[0035] A plastic composite pipe with a steel mesh skeleton, mainly composed of a pipe wall 1, a pipe body 2, a pipe reinforcement skeleton 3, a pipe fitting body 4, a pipe fitting wall 5, a pipe fitting reinforcement skeleton 6 and a connecting flange 7, wherein the pipe The reinforcing frame 3 is embedded in the middle of the pipe wall 1 of the pipe body 2; the pipe reinforcing frame 6 is embedded in the middle of the pipe wall 5 of the pipe body 4; the connecting flange 7 is arranged on the pipe body 2 and the pipe body 4 connection location.

[0036] Further, the pipe reinforcing skeleton 3 is specifically configured as a tubular steel wire mesh 10 formed by winding and welding, which is conducive to improving the strength of the pipe main body 2 and further improving the service life.

[0037] Further, the tubular steel wire mesh 10 of the pipe reinforcement frame 3 specifically adopts the tubular steel wire mesh 10 of the pipe reinforcement frame 10 intersecting at 45 deg...