Cast-in-situs steel reinforced concrete raceway water pressure testing method

Abstract

It is a water pressure test method for the cast-in-place reinforced concrete pipes, and firstly, constructing the aqueducts, and in the joint of the pipe installed the water stop strip, and in the pipe inner wall reserved a lap notch; then, clean up the water pipes inside wall, and in two grooves relative to the aqueduct joints, spreading the viscose layer, and then slit-covered oak stick belt, and the joints, the water stop strip, the inner wall notch and the rubber ring closed to form a sealed space. With top-pressure component and supporting skeleton, it guarantees the sealing surface compact and solid; the input water pipe imports the water to the sealed space, and after excluding the air of the sealed space, controlling the drainage flow, and observing the pressure gauge at the same time, until the pressure reaching the test standard requirements, and inspecting the aqueduct having no leakage, and then pilot qualified. The invention no need to add a separate compressor or pressure pump, no need large loading equipment, the installation and removal is convenient, and the technique is simple, reliable and easy to operate, and effect is visual and intuitive, and the test device can be re-use, lower cost, not occupying the civil engineering project time of cast-in-place reinforced concrete pipes.

Description

(1) Technical field [0001] The invention relates to a water pressure test method for a water delivery pipe. (2) Background technology [0002] The conventional water pressure test method of cast-in-place reinforced concrete water pipe is the whole section test, that is, adding a reinforced concrete flange at the end of the reinforced concrete water pipe, and then drilling holes on the flange and using expansion bolts to fasten and seal the steel plate. The inside of the concrete water pipe is sealed. Use an air compressor to input compressed air into a water storage tank with a water level scale and connected to a reinforced concrete water pipe, and gradually increase the water pressure in the water storage tank and the reinforced concrete water pipe to reach the pressure required by the test standard; at the same time, through Read the water level scale on the water storage tank, and calculate the leakage loss rate of water according to the change of the water level scale....

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for hydrostatic testing of cast-in-place reinforced concrete water pipes, which can overcome the tight construction period, difficulty in hoisting sealing plates, and poor sealing operation conditions in the hydraulic test of the entire section of cast-in-place reinforced concrete water pipes. technical problem

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