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Method for installing composite cable saddle in anchor hole of a mountainous area suspension bridge tunnel s

An installation method and tunnel anchor technology, which are applied to suspension bridges, bridges, bridge parts, etc., can solve the problems of insufficient installation of composite cable saddle tunnel anchor holes, and achieve the effects of reducing construction costs, convenient operation and less equipment investment.

Active Publication Date: 2020-03-17
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the inadequacy of installation in the anchor hole of the composite cable saddle tunnel in the above-mentioned background technology that large-scale cranes and winches cannot solve at all, and provide a method for installing the composite cable saddle in the anchor hole of the tunnel anchor hole of the suspension bridge in mountainous area

Method used

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  • Method for installing composite cable saddle in anchor hole of a mountainous area suspension bridge tunnel s
  • Method for installing composite cable saddle in anchor hole of a mountainous area suspension bridge tunnel s
  • Method for installing composite cable saddle in anchor hole of a mountainous area suspension bridge tunnel s

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Embodiment 1

[0050] see figure 1 with Image 6 As shown, the embodiment of the present invention provides a method for installing a composite cable saddle in the tunnel anchor hole of a suspension bridge in a mountainous area. The composite cable saddle pier foundation 8 and the composite cable saddle pier 9 for installing the composite cable saddle are arranged in the tunnel anchor hole. The pier 9 is located on the top of the composite cable saddle pier foundation 8 . The elevation from the opening of the tunnel anchor hole to the top of the composite cable saddle pier 9 gradually increases, a portal frame 1 is set above the composite cable saddle pier foundation 8, and a hoist 3 is arranged behind the composite cable saddle pier foundation 8 . This method comprises the following steps:

[0051] Step 1: Use a flatbed truck to transport the component 10 of the composite cable saddle to the side of the pier foundation 9 of the composite cable saddle. Due to the excessive weight of the c...

Embodiment 2

[0062] see figure 1 , Figure 9 with Figure 10 As shown, on the basis of Embodiment 1, the embodiment of the present invention provides a method for installing a composite cable saddle in the anchor hole of a suspension bridge tunnel in a mountainous area. The steering device 22 bypassing the sliding seat 2 on the platform 11 is connected to the component 10 of the composite cable saddle, and the steel plate 26 is placed between the sliding seat 2 and the mast 1 to fix the sliding seat 2 on the first elevation platform of the mast 1 11 to prevent the sliding seat 2 from overturning on the first elevation platform 11 of the portal frame 1 . The hoist 3 is started, and the hoisting wire rope 4 passes through the hoist 3 to lift the component 10 of the composite cable saddle to be higher than the top surface of the composite cable saddle pier foundation 8 .

[0063] By setting the sliding seat 2 on the first elevation platform 11 of the portal frame 1, the steering device 22 ...

Embodiment 3

[0065] see figure 1 with Figure 11 As shown, on the basis of Embodiment 2, the embodiment of the present invention provides a method for installing a composite cable saddle in the anchor hole of a suspension bridge tunnel in a mountainous area. The difference between this method and Embodiment 2 is that the first elevation platform 11 of the portal frame 1 is located at Close to the opening of the tunnel anchor hole, since the elevation from the opening of the tunnel anchor hole to the top of the composite cable saddle pier 9 gradually increases, the first elevation platform 11 located at the portal frame 1 of the tunnel anchor hole is compared with the first elevation platform 11 located at the composite cable saddle pier. The height of the second elevation platform 12 of the portal frame 1 above the foundation 8 is slightly lower. The hoist 3 is arranged at the rear of the composite cable saddle pier foundation 8 away from the tunnel anchor hole, and the hoist 3 is connect...

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Abstract

The invention discloses a method for installing a composite cable saddle in an anchor hole of a mountainous area suspension bridge tunnel, and belongs to the technical field of bridge construction. The method comprises the following steps: transporting components of the composite cable saddle to the side of a composite cable saddle buttress foundation; hoisting the components of the composite cable saddle to be higher than the top surface of the composite cable saddle buttress foundation by using a winch and a portal; horizontally moving the components of the composite cable saddle to the position above the top face of the composite cable saddle buttress foundation on the portal frame; lifting the components of the composite cable saddle to be higher than the top face of the composite cable saddle buttress again through the winch and the portal; translating the components of the composite cable saddle again on the portal to the upper part of the top surface of the composite cable saddle buttress; and lowering the components of the composite cable saddle to a set position on the top surface of the composite cable saddle buttress by using a winch. According to the method, in a narrowtunnel anchor hole, the portal, the winch and other devices are used for moving the component of the composite cable saddle with the single body weight reaching 50 t to the set position of the top face of the composite cable saddle buttress, and the device investment is small, and operation is convenient, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a method for installing a composite cable saddle in an anchor hole of a suspension bridge tunnel in a mountainous area. Background technique [0002] In order to save investment, the mountainous suspension bridge uses the existing terrain and tunnel anchors to anchor the main cable on the mountain. Conventional suspension bridges in mountainous areas are generally equipped with main cable saddle and scattered cable saddle. The height is small, and the mast frame is hoisted by a loose cable saddle or a large crane is hoisted in place. [0003] The world's first composite cable saddle is the Jinsha River Bridge on the Xiangli Expressway under construction. The composite cable saddle of the bridge is installed at the anchor hole of the tunnel, the installation of the composite cable saddle is not limited by space, and the installation of the composite cable saddle is r...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D11/02E01D19/00E01D19/14E02D27/00
CPCE01D11/02E01D19/00E01D19/14E01D21/00E02D27/00
Inventor 胡雄伟胡军张睿智王哲武段妙奇岳万友胡敬尧毛伟琦涂满明周超舟代皓江乐威
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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