Construction method of steel wire mesh framework plastic composite pipe

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.

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...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method of steel wire mesh skeleton plastic composite pipe, aiming at the existence of corrosion resistance, temperature resistance, impact resistance, rigidity and dimensional stability in the existing construction method of steel mesh skeleton plastic composite pipe And the problem of poor creep resistance and low permanent mechanical strength

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