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Shield portal sealing device capable of adjusting positions and off-center installation method thereof

A technology of sealing device and shield tunnel, which is applied in shaft equipment, earthwork drilling, wellbore lining, etc., can solve problems such as excessive horizontal deviation, long processing time, and high construction risk in the initial section of shield tunneling, and achieve Reduce the difficulty of handling, avoid structural damage, and flexibly exit the hole

Active Publication Date: 2017-09-08
北京城建中南土木工程集团有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an adjustable position shield tunnel door sealing device and its eccentric installation method, to solve the problem of excessive horizontal deviation of the starting section of the shield tunnel, which usually takes a long time, high cost and construction risk big technical problem

Method used

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  • Shield portal sealing device capable of adjusting positions and off-center installation method thereof
  • Shield portal sealing device capable of adjusting positions and off-center installation method thereof
  • Shield portal sealing device capable of adjusting positions and off-center installation method thereof

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Embodiment Construction

[0049] Examples see Figure 1-6As shown, this adjustable shield door sealing device is installed outside the shield door, including:

[0050] Steel sleeve, the steel sleeve includes a round steel cylinder 5, welded to the door end of one end of the round steel cylinder 5 to connect to the steel plate 1, welded to the end sealing steel plate 2 connected to the other end of the round steel cylinder 5, welded The steel skeleton that is connected on the outer surface of the round steel cylinder 5, and the grouting pipe 7 that is welded on the outer surface of the round steel cylinder 5 and communicates with the inner side of the round steel cylinder 5, the grouting pipe 7 is formed before use Grease and ball valves are blocked to maintain usability during use. The grouting pipe can quickly fill the space through the ground injection of quick-setting grout to achieve the sealing effect of the hole door. The ball valve must be matched with the external grouting equipment pipe joints...

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Abstract

Provided is a shield portal sealing device capable of adjusting positions and an off-center installation method thereof. The device is installed outside a shield portal, and comprises a steel sleeve, a joint sealing connecting structure and a shield sealing connecting structure, wherein the steel sleeve comprises a round steel cylinder, a portal end connecting steel plate, a tip sealing steel plate, a steel skeleton and a grouting pipe; the joint sealing connecting structure includes embedded parts, a pressing plate, a connecting bolt A and a portal end sealing ring; the shield sealing connecting structure comprises a sealing rubber plate, an arc pressing plate and a turning plate which are successively arranged on the outer side of the tip sealing steel plate, and a connecting bolt B for connecting the sealing rubber plate, arc pressing plate and turning plate on the tip sealing steel plate. The shield portal sealing device can effectively seal the shield portal, and correct or adjust the portal offset to make the shield tunneling attitude more flexible. The method can avoid the adjustment of a launching section tunnel line within a certain range of the deviation value, the portal can easily be shifted a certain distance in an extended mode to a needed direction, and meanwhile the characteristics of the portal center can be quickly adjusted.

Description

technical field [0001] The invention relates to the technical field of shield tunnel construction equipment, in particular to a door sealing device installed at the door of a shield tunnel and an installation method thereof. Background technique [0002] In the construction of subway tunnels, there are often two main phases, the first is the station (shaft) construction phase, and the second is the tunnel construction phase. Affected by factors such as the design and construction of the two phases, sometimes the previous process does not fully consider the needs of the subsequent phase of construction during process conversion, or the construction errors of the previous phase need to be compensated by measures in the latter phase. This point is often encountered in the starting and receiving stage of tunnel construction using the shield method. The main reasons are that after the structural construction is completed, the size or position of the shield portal is inconsistent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D11/38
CPCE21D9/06E21D11/38Y02E10/20
Inventor 李正青于海亮孙士鼎李玲娄志会张养广顾欣黄锡阳范欣荣于明为晏金洲刘志伟惠俊龙
Owner 北京城建中南土木工程集团有限公司
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