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Cable pipeline construction method and air bag applied in the method

A pipeline construction and cable technology, applied in the direction of optical fiber/cable installation, etc., can solve the problems of optical cable affecting transmission quality, poisonous gas poisoning, etc., and achieve the effect of good sealing effect, high reuse rate and simple structure

Inactive Publication Date: 2012-04-04
SHANGHAI TELECOMM ENG
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The purpose of this invention is to provide a new construction method for laying optical cables in double-wall bellows pipes, so as to solve the problems that poisonous gas poisoning incidents easily occur in existing man-wells, and the optical cables in the pipes are soaked in water and affect the transmission quality.

Method used

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  • Cable pipeline construction method and air bag applied in the method
  • Cable pipeline construction method and air bag applied in the method
  • Cable pipeline construction method and air bag applied in the method

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Embodiment Construction

[0022] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Please refer to figure 1 and figure 2 Specifically, the new cable duct construction method provided by the present invention is to seal each hole of the corrugated duct 10 with a sealing device at the pipe opening in the manhole after the double-wall corrugated duct 10 is completed, and the sealing device is a An inflatable airbag 20 is mainly made of rubber material and has strong stretchability. When the airbag 20 is not inflated, it is shriveled and looks like a thin cake. End faces 21 are provided at both ends, and one end face is provided with a Protruding air hole 23. There are several through holes 22 inside the airbag 20 , and each through hole has a round hole 220 on the end surface 21 . There is a spring lock 221 on each round hole 220, which has an automatic closing function, that is, it is closed in a natural state, th...

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Abstract

The invention relates to a cable pipeline construction method. The method comprises the steps of providing a corrugated pipeline, providing a sealing device, placing the sealing device in the corrugated pipeline, aerating the sealing device so as to fill the sealing device and seal the corrugated pipeline and sealing the sealing device. The invention is used for solving the problems that the toxic gas poisoning incident easily occurs in the man well and the transmission quality is influenced as an optical cable in a pipeline is soaked in the water.

Description

technical field [0001] The invention relates to a construction method for laying cables in bellows pipes in pipeline engineering, and is often used in communication engineering line projects. Background technique [0002] At present, most pipeline projects involve laying optical cables in pipelines, and optical cables have become the most important transmission medium for communication signal transmission. In the urban area, in order to rectify the "black pollution" caused by overhead lines, all kinds of cables densely intertwined above the streets are fully transferred underground, and replaced by underground pipelines. Considering the economy of pipeline construction, Φ110 / 100 double-wall corrugated pipe with an inner diameter of 100MM is currently the most common pipeline material. Laying the optical cable in the corrugated pipe requires first passing through the inner conduit, and then laying the optical cable in the inner conduit. [0003] The traditional construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/50
Inventor 顾胜昌钱宝建
Owner SHANGHAI TELECOMM ENG
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