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Method for protecting underground pipeline during pipe ditch excavation

A technology for underground pipelines and pipelines, applied in pipeline protection, pipeline damage/wear prevention, pipeline support, etc., can solve problems such as inconvenient earthwork excavation, economic loss, pipeline damage, etc., to save construction preparation time, save engineering costs, Avoid the effect of man-made damage

Inactive Publication Date: 2016-05-04
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

[0002] Nowadays, it has become the direction of future urban development planning to transform overhead power lines into the ground, and the renovation of overhead lines into the ground is generally a full-line open-cut tunnel. During the construction process, there are many pipelines along the line, which is not convenient for earthwork excavation. The method is not conducive to the protection of the pipeline, resulting in damage to the pipeline by external forces during the excavation process, resulting in unnecessary economic losses

Method used

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  • Method for protecting underground pipeline during pipe ditch excavation

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Embodiment Construction

[0023] A protection method for underground pipelines when trenches are excavated, comprising the following construction steps:

[0024] a. Preparation before construction

[0025] Prefabricate two steel structure supports 2, prepare the I-beam rail 1 according to the width of the excavation trench, and the length of the I-beam rail 1 is 3-4m longer than the excavation trench;

[0026] b. Hanging brackets and rails

[0027] Lift the prefabricated steel structure support 2 to both sides of the groove to be parallel to the groove, and hoist the I-beam rail 1 to the steel structure support 1 to be parallel to the pipeline 5 and directly above the pipeline 5;

[0028] c. clean up the dirt

[0029] Clean up the soil surrounding the pipeline 5, and dig 3 to 4 grooves for installing the protective steel plates 6 along the lower part of the pipeline 5 along the direction of the pipeline 5, and install the protective steel plates 6 in place, and the protective steel plates 6 are ev...

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Abstract

The invention discloses a method for protecting an underground pipeline during pipe ditch excavation and belongs to the technical field of electric power engineering construction technologies. The construction method includes the steps that firstly, two steel structure supports are prefabricated and an I-beam steel rail is prepared; then the steel structure supports are hoisted to two sides of a trench, the I-beam steel rail is hoisted to the upper portions of the steel structure supports to be parallel to the pipeline and be located over the pipeline; mud wrapping the pipeline is cleaned up and a protective steel board is mounted in place; and a hanger is mounted onto the I-beam steel rail and carries out suspending protection on the pipeline through the protective steel board. By adoption of the scheme in the construction process, the security of the pipeline is ensured during earth excavation construction, and normal operation of construction is facilitated; besides, the preparation time of construction can be greatly shortened, and the engineering cost can be reduced.

Description

technical field [0001] The invention relates to a protection method for underground pipelines when excavating pipe trenches, and belongs to the technical field of electric power engineering construction. Background technique [0002] Nowadays, it has become the direction of future urban development planning to transform the overhead lines into the ground, and the reconstruction projects of overhead lines are generally open-cut tunnels along the entire line. During the construction process, there are many pipelines along the line, which is not convenient for earthwork excavation. The method is not conducive to the protection of the pipeline, resulting in damage to the pipeline by external forces during the excavation of earth, resulting in unnecessary economic losses. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method capable of effectively protecting underground pipelines when excavating pipe trenches. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L57/00F16L3/14
CPCF16L57/00F16L3/14
Inventor 刘宏健霍新德徐振佳甄世超
Owner STATE GRID CORP OF CHINA
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