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The Construction Method of the Integration of Leading Rope Crossing the River and Traction System

A construction method and pilot cable technology, applied in the direction of erecting/assembling bridges, bridges, buildings, etc., can solve the problems of difficulty in ensuring safety, long air closure time, and high construction difficulty, and achieve high construction efficiency, high safety performance, and high safety performance. The effect of reducing construction steps

Active Publication Date: 2015-08-19
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Yangluo Bridge is towed across the river by laying pilot cables underwater. Its main feature is that after the pilot cables are connected, the traction cables of the traction system need to be erected again on the catwalk. Complicated, extremely difficult to construct, and difficult to guarantee safety

Method used

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  • The Construction Method of the Integration of Leading Rope Crossing the River and Traction System
  • The Construction Method of the Integration of Leading Rope Crossing the River and Traction System
  • The Construction Method of the Integration of Leading Rope Crossing the River and Traction System

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Embodiment Construction

[0023] The construction method of the integration of the guide cable crossing the river and the traction system includes the following steps:

[0024] 1. Construction preparation: such as figure 1 As shown, in the two banks under construction, a tower body 1, a 20T pilot rope winch 2, an anchorage 3 and a 25T main winch 4 are arranged on each bank.

[0025] In addition, before the pilot rope crosses the river, arrange the traction machinery and materials in place, apply in advance with the port supervision, port affairs, and waterway departments, and issue a no-navigation notice to ensure that the waterway is closed during the traction process. Before traction, detailed technical and safety disclosures and careful construction organization should be carried out to ensure nothing goes wrong.

[0026] 2. Erection of the pilot cable

[0027] ① if figure 2 As shown, on the pilot rope hoist fixed on the side-span auxiliary platform at the bottom of the tower on both sides, the ...

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Abstract

The invention discloses a construction method integrating pilot rope river-crossing and traction system by building bridge cat ways and mounting main cables. The construction method comprises the following steps of: A construction preparation, building tower bodies, pilot rope winches, concrete anchors and main winches on two constructional banks; B, building pilot ropes; C, building traction ropes, respectively drawing one ends of the transition ropes of the main winches arranged on two banks to tops of towers, drawing one end of the traction rope arranged on the top of the tower on one bank to the top of the tower on the opposite bank through the pilot ropes, and enabling end heads of the two traction ropes to be connected; and starting the main winches on two banks, enabling the main winch on one bank to wind and the main winch at the other end to unwind until the traction ropes are built. The method has the advantages of being fast and convenient in mounting, safe in construction, short in navigation channel closure period, short in construction period, guaranteed in quality, convenient in operation and the like.

Description

technical field [0001] The invention relates to an installation and construction method of a traction system for bridge catwalk erection and main cable installation. Background technique [0002] The core of traction system erection lies in the guide rope crossing the river. Usually, the thinner wire rope is used to cross the river first, and then the pilot rope is used to guide the river across the river in the air (the wire rope is from thin to thick). The main methods are: underwater laying method, free suspension method , floating hanger method, helicopter frame method and balloon suspension method, etc., and finally turn into the traction wire rope of the anchor road load-bearing cable or the main cable strand. The traction system is usually installed and constructed on the basis of the transitional pilot rope erected in advance. [0003] The Yangluo Bridge adopts the pilot cable to be pulled across the river. Its main feature is that after the pilot cable is connected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 谭立心刘宏波罗超云冯炳生吴聪程建阳李斌詹元林鄢生全
Owner GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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