Method for laying mine slurry pipeline in long and narrow section

Abstract

The invention discloses a method for laying a mine slurry pipeline in a long and narrow section, which can shorten a construction period. In the method, the length of a corresponding straight pipe section is determined by taking positions, where two bent pipes are connected in front of and behind the same straight pipe section, as demarcation points. The method comprises the following steps of: 1, grooving, laying a track in a pipe groove, arranging a trolley with a circular-arc pipe seat on the track, matching the circular arc of the circular-arc pipe seat with the outer circle of a pipeline, arranging a cushion on the circular-arc pipe seat and pairwise welding single pipes into a straight pipe section of a required length in a wide region; 2, pulling the entire straight pipe section into the pipe groove by using traction equipment and the trolley, supporting the straight pipe section with a supporting frame, removing the trolley, the traction equipment and the track and putting the straight pipe section down; and 3, connecting the straight pipe section with the bent pipe at the two ends and refilling the pipe groove. The method has a simple process, and is easy to operate; the one-step laying distance is large, the construction period is shortened, and the cost is lowered; and the method has high safety, and is particularly suitable for large-caliber long-distance mine slurry pipelines.

Description

technical field [0001] The invention relates to a method for laying a pipeline, in particular to a method for laying a slurry pipeline in a long and narrow section. Background technique [0002] For large-diameter slurry pipelines with a diameter of more than 600mm, the laying operation usually adopts the staggered and parallel operation mode of "ditching and laying pipelines" and "butt welding of pipeline groups". Taking the laying position corresponding to a single pipe as a pipe station, the operation sequence is: first lay the pipe, then open the ditch, then perform butt welding of the single pipe to form a pipe section, and then backfill the ditch under the pipe section,... Work in such a staggered manner. [0003] When laying pipelines in open areas, the construction site is wide. Whether a single pipe is a straight pipe or a bent pipe, small lifting equipment can be used to directly lift a single pipe for pipe laying. Ditching equipment, lifting equipment and Weldin...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcoming of the existing pipeline laying method with a long construction period when operating in a long and narrow section, the technical problem to be solved by the present invention is to provide a method for laying a slurry pipeline in a long and narrow section that can shorten the construction period

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