Arrangement method of shaped backrest long-distance water conveying pipeline pressure test system

Abstract

The invention relates to an arrangement method of a shaped backrest long-distance water conveying pipeline pressure test system. The arrangement method comprises the steps of 1) making construction preparations; 2) driving a first supporting pile and a second supporting pile; 3) arranging a suspension working platform; 4) arranging a built-in closed body; 5) closing the end part of the pipeline; 6) positioning back pressure of the pipe section; (7) controlling the anti-slip position of the pipeline; and 8) conducting a pressure test. The arrangement method has the beneficial effects that the first supporting pile and the second supporting pile are arranged, the solidified supporting body is arranged at the intersection of the first supporting pile and the second supporting pile and the soil body around the pipe, the first supporting body and the stress sensor are arranged between the first supporting pile and the second supporting pile, and according to the stress condition of the stress sensor, transverse jacking pressure is applied to the second supporting pile through the first supporting body, and accurate control over the position of the second supporting pile in the load applying process is achieved; and a second counter-force plate and a first counter-force plate are firmly connected through a position control pull rod, and transverse jacking force applied to a pipe endsupporting cap by the third supporting body can be reduced.

Description

technical field [0001] The invention relates to a laying method of a stereotyped backrest long-distance water pipeline pressure test system that can enhance the structural integrity, improve the force performance of the pipe end support cap, and improve the stability of the test pipeline, and is suitable for transportation in municipal engineering or water conservancy projects. Water pipeline construction works. Background technique [0002] In recent years, my country's long-distance water transmission projects have achieved good development and construction, and long-distance water transmission pipelines have gradually increased. In the construction of water pipelines, pipeline pressure testing is a very important detection link. Through pipeline pressure testing, the air tightness and strength of pipelines can be tested. [0003] There is a water pipeline pressure test device in the prior art, which includes steel pipe I and steel pipe II which can be respectively connec...

AI Technical Summary

Problems solved by technology

Although the pressure test device can realize the coordinated force bearing of pipe I, steel pipe II and pressure test pier, it is difficult to improve the bearing capacity of the soil around the pipe, and fails to solve the stability problems such as warping and slippage of the test pipe. and does not involve a temporary built-in closure of the lumen

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