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Waterproof structure for shield-method tunnel anti-floating anchor rod node

A technology of anti-floating bolt and shield method, applied in tunnels, tunnel linings, shaft linings, etc., can solve problems such as inability to be directly applicable, and achieve the effects of simple structure, meeting waterproof requirements, and easy operation.

Active Publication Date: 2014-05-14
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the shallow-buried shield tunnel structure is assembled from prefabricated segments, and the above invention cannot be directly applied

Method used

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  • Waterproof structure for shield-method tunnel anti-floating anchor rod node
  • Waterproof structure for shield-method tunnel anti-floating anchor rod node
  • Waterproof structure for shield-method tunnel anti-floating anchor rod node

Examples

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Embodiment Construction

[0017] Such as figure 1 and figure 2 As shown, a specific embodiment of the waterproof structure of the anti-floating anchor rod node of the shield tunnel method of the present invention, the waterproof structure includes a steel pipe body with a built-in sealing end plate 9 and a water-stop steel ring 6 arranged on the outer side of the steel pipe body. Bolt holes are provided on the end plate 9 .

[0018] As a specific implementation of this embodiment, the above-mentioned steel pipe body includes a first steel pipe 4 and a second steel pipe 1 coaxially arranged, the diameter of the second steel pipe 1 is larger than the diameter of the first steel pipe 4, and one end of the second steel pipe 1 passes through the connecting steel pipe. One end of the ring 2 and the first steel pipe 4 is welded and fixed, and the sealing end plate 9 is welded and fixed on the connecting steel ring 2, wherein the preset anchor hole on the sealing end plate 9 can be welded and sealed with the...

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Abstract

The invention discloses a waterproof structure for a shield-method tunnel anti-floating anchor rod node, which comprises a steel pipe body with a built-in seal end plate, and a water-seal steel ring arranged on the outer side surface of the steel pipe body, wherein the seal end plate is provided with an anchor rod hole; the seal end plate is welded inside the steel pipe body in a seal mode; the anchor rod penetrating through the anchor rod hole is welded with the seal end plate in a seal mode; the steel pipe body comprises a first steel pipe and a second steel pipe which are arranged coaxially; the diameter of the second steel pipe is greater than that of the first steel pipe; and one end of the second steel pipe is welded and fixed with one end of the first steel pipe through a connecting steel ring. The invention has the advantage of simple structure, is easy to operate; and compared with other waterproof devices, the invention is simpler to operate and has better waterproof effect in both pipe piece production and anchor rod construction.

Description

technical field [0001] The invention relates to a waterproof structure for underground engineering, in particular to a waterproof structure for anti-floating anchor rod joints of shield tunnels. Background technique [0002] With the development of science and technology, a shallow buried shield tunneling method has been deeply researched and applied at home and abroad. Shallow-buried shield tunnels have a more prominent anti-floating problem due to their shallow burial depth and thin covering soil. In the use stage, the anti-floating measures of shallow-buried shield tunnels mostly use anchor rods to resist floating. However, there is no good solution to the waterproof problem of anchor rod anti-floating nodes. [0003] Chinese patent CN200820187592.2 improves the original anti-floating joints of ordinary underground structures, and proposes a combined anti-floating anchor joint waterproof structure. However, the shallow buried shield tunnel structure is assembled from pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38
Inventor 姜弘王印昌潘国庆王新张银屏吴惠明滕丽林家祥李刚
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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