Construction method of cross-valley overhead pipeline

A technology for overhead pipelines and construction methods, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve problems such as difficult conditions, hidden safety hazards, and high costs, and achieve construction cost saving, saving expenses, The effect of shortening the construction period

Active Publication Date: 2010-09-01
CHENGDU CONSTR ENG GROUP CORP
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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 tradi

Method used

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  • Construction method of cross-valley overhead pipeline
  • Construction method of cross-valley overhead pipeline
  • Construction method of cross-valley overhead pipeline

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Such as Figure 1~3 Shown, cross-valley overhead pipeline construction method of the present invention comprises the following steps:

[0022] 1) Set up the pipeline support J0 at the beginning 2 of the valley 1;

[0023] 2) Install the pulley device 9 on the established pipeline support J0, use the lifting hoist Y1 to guide the pulley device 9 to lift the previous pipeline support J4, and fix the support base 3 after it is in place;

[0024] 3) Connecting members 4 are arranged between the pipeline supports to form a working bridge 5;

[0025] 4) Use the traction hoist Y3 to implement the horizontal traction of the pipeline 6 on the working bridge 5 .

[0026] Such as figure 1 , the "starting point 2" in step 1) refers to the position where the ramp on the side of the valley 1 starts. The selection of the starting point 2 of the valley 1 is preferably base...

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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...

Claims

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Application Information

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IPC IPC(8): F16L1/024
Inventor 彭光明辜碧军卢文宇胡笳
Owner CHENGDU CONSTR ENG GROUP CORP
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