CN103235380A

CN103235380A - Method for long-distance coal conveying pipeline and communication cable to pass through underground engineering pipeline

Info

Publication number: CN103235380A
Application number: CN2013101740348A
Authority: CN
Inventors: 刘兴晖; 于新胜; 刘睿; 郑珊珊; 王师伟
Original assignee: Wuhan Design and Research Institute of China Coal Technology and Engineering Group
Current assignee: Wuhan Design and Research Institute of China Coal Technology and Engineering Group
Priority date: 2013-05-11
Filing date: 2013-05-11
Publication date: 2013-08-07

Abstract

The invention discloses a method for a long-distance coal conveying pipeline and a communication cable to pass through an underground engineering pipeline. The traversing method comprises two methods, namely the cable and the coal conveying pipeline pass through the existing underground pipeline in a same-ditch way, and the cable singly passes through the underground pipeline. The traversing method is different from the method of the cable climbing over the existing pipeline, since the cable climbs over the pipeline in the climbing-over method, while the cable passes under the existing pipeline in the traversing method. The traversing method is technically characterized in that after a ditch is excavated, firstly, the protection measures are taken for the existing pipeline, and then the coal conveying pipeline and/or the cable are/is laid by a conventional method. The traversing method is suitable for the two conditions that the thickness of the covering layer of the existing pipeline does not meet the burying requirement of the cable, and the cable and the coal conveying pipeline are laid in the same ditch.

Description

The defeated coal communications optical cable of long-distance pipe passes through the underground works tube method

Technical field

The present invention relates to pipeline transportation communication, be specifically related to the defeated coal communications optical cable of long-distance pipe and pass through the underground works tube method.

Background technology

Compare with crossing, passing through is that optical cable will be crossed from existing pipeline below.This crossing method is suitable for existing pipeline superstratum thickness can not satisfy optical cable buried depth needs and optical cable and convey coal pipe with two kinds of situations of ditch laying.

Summary of the invention

The purpose of this invention is to provide the defeated coal communications optical cable of a kind of long-distance pipe and pass through the underground works tube method.

In order to overcome the deficiencies in the prior art, technical scheme of the present invention is to solve like this: the defeated coal communications optical cable of long-distance pipe passes through the underground works tube method, this method comprises that optical cable passes through existing pipeline with convey coal pipe with ditch and optical cable passes through two kinds of methods separately, and its feature is undertaken by following step:

When 1) described optical cable and convey coal pipe pass through existing underground pipeline with ditch, support with die earlier after the ditching existing pipeline is protected, lay convey coal pipe and optical cable with ditch according to a conventional method again.

2) described optical cable is when passing through existing pipeline separately, the laying three steps of branchs of cable ditch excavation back optical cable: support existing pipeline → the lay optical cable → cable trench backfill of usefulness φ 44/33 silicon core protection of pipe with shaped steel.

The invention has the beneficial effects as follows: the lightguide cable link total length is 727km at least, and optical cable and convey coal pipe laying in one ditch can reduce excavated volume, shortens the construction period, the saving of labor, saves time, and in the time of ditching existing pipeline has been taked safeguard measure, is widely used in the pipeline transportation industry.

Description of drawings

Fig. 1 is that optical cable and convey coal pipe pass through existing pipeline vertical section with ditch;

Fig. 2 is that optical cable and convey coal pipe pass through existing pipeline transversal section with ditch;

Fig. 3 is that optical cable passes through existing pipeline vertical section separately;

Fig. 4 is that optical cable passes through existing pipeline transversal section separately.

Among the figure: 1-nature ground; The existing pipeline of 2-; The 3-communications optical cable; The 4-convey coal pipe; 5-marker peg or warning sign; 6-shaped steel supports; 7-tile or cast carbon steel support; 8-φ 44/33 silicon core pipe.

Embodiment

The present invention will be further described below in conjunction with drawings and Examples:

With reference to Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the defeated coal communications optical cable of long-distance pipe passes through the underground works tube method, this traversing method comprises optical cable and convey coal pipe passes through underground existing pipeline 2 with ditch and optical cable 3 passes through two kinds of methods separately, it is characterized in that being undertaken by following step:

When described optical cable 3 and convey coal pipe 4 pass through underground existing pipeline 2 with ditch, support 6 pairs of existing pipelines 2 with die earlier after the ditching and protect, lay convey coal pipe 4 and optical cable 3 with ditch according to a conventional method again.

Described optical cable 3 when passing through existing pipeline 2 separately, the laying three steps of branchs of cable ditch excavation back optical cable 3: support optical cable 3 → cable trench backfill of protecting with φ 44/33 silicon core pipe 8 of 6 existing pipelines 2 → lay with shaped steel.

Claims

1. the defeated coal communications optical cable of long-distance pipe passes through the underground works tube method, and this traversing method comprises that optical cable (3) and convey coal pipe (4) pass through underground existing pipeline (2) with ditch and optical cable (3) passes through two kinds of methods separately.

2. the defeated coal communications optical cable of long-distance pipe according to claim 1 passes through the underground works tube method; it is characterized in that; when optical cable (3) and convey coal pipe (4) pass through underground existing pipeline (2) with ditch; support (6) with die earlier after the ditching existing pipeline (2) is protected, lay convey coal pipe (4) and optical cable (3) with ditch according to a conventional method again.

3. the defeated coal communications optical cable of long-distance pipe according to claim 1 passes through the underground works tube method; it is characterized in that; when optical cable (3) passes through existing pipeline (2) separately, the laying three steps of branchs of cable ditch excavation back optical cable (3): support optical cable (3) → cable trench backfill of protecting with φ 44/33 silicon core pipe (8) of (6) existing pipeline (2) → lay with shaped steel.