Construction method of cross-valley overhead pipeline

Abstract

The invention discloses a construction method of a cross-valley overhead pipeline, which can realize fast construction progress and low cost. The method comprises the following steps: 1) setting up a pipeline support in the initial position of a valley; 2) mounting a pulley device on the pipeline support which is well set up, then using a hoisting winch for erecting and hoisting the previous pipeline support by taking the pulley device as the guide, and fixing a support foundation after arranging in place; 3) arranging a connecting member between the pipeline supports for forming a working bridge; and 4) using a traction winch for implementing the horizontal traction of the pipeline on the working bridge. The method has the advantages of realizing fast construction speed, greatly reducing the project cycle, further saving the expenses of the field-leveling measure and the measure of setting up a scaffold and reducing the cost. The trial proves that the method can greatly shorten the duration, save the construction cost by about 40%, further reduce the construction risk and obtaining certain social and economic benefits.

Description

technical field [0001] The invention relates to a cross-valley overhead hoisting technology, in particular to a construction method for a cross-valley overhead pipeline. Background technique [0002] Since the production pipelines of industrial projects need to be introduced and discharged from the base, the conditions necessary for traditional mechanical hoisting operations are often difficult to meet due to the constraints of natural terrain conditions during the pipeline erection process. For example, for the construction of overhead pipelines across valleys, if the traditional mechanical hoisting method is used, due to the constraints of natural terrain, large-scale hoisting equipment cannot enter the construction site, and measures such as field leveling and scaffolding must be carried out, which not only has a long construction period and high cost, but also exists Potential safety hazards caused by high-altitude assembly and welding of pipelines. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0002] Since the production pipelines of industrial projects need to be introduced and discharged from the base, the conditions necessary for traditional mechanical hoisting operations are often difficult to meet due to the constraints of natural terrain conditions during the pipeline erection process

For example, for the construction of overhead pipelines across valleys, if the traditional mechanical hoisting method is used, due to the constraints of natural terrain, large-scale hoisting equipment cannot enter the construction site, and measures such as field leveling and scaffolding must be carried out, which not only has a long construction period and high cost, but also exists Potential safety hazards caused by high-altitude assembly and welding of pipelines

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