Waterproof structure for sealing high-water-pressure shield tunnel bolt hole

A technology for shield tunneling and waterproof structure, which is applied in tunnels, tunnel linings, wellbore linings, etc., can solve problems such as failure to meet long-term performance design requirements, poor waterproof treatment methods, etc., achieve strong guiding significance and improve waterproof adaptability. , the effect of strong operability

Active Publication Date: 2017-04-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the waterproof treatment methods for the bolt holes of shield tunnels under high water pressure are not effective, and they are far from meeting the long-term performance design requirements of the "Centennial Project".
In addition, there is no bolt hole waterproof design theory and effective and feasible test evaluation method at home and abroad.

Method used

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  • Waterproof structure for sealing high-water-pressure shield tunnel bolt hole
  • Waterproof structure for sealing high-water-pressure shield tunnel bolt hole
  • Waterproof structure for sealing high-water-pressure shield tunnel bolt hole

Examples

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Embodiment Construction

[0025] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change...

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Abstract

The invention relates to a waterproof structure for sealing a high-water-pressure shield tunnel bolt hole. The waterproof structure is used for filling a gap between a shield tunnel joint connecting bolt and a shield tunnel segment in the position of the high-water-pressure or cross-river or cross-sea shield tunnel bolt hole. The waterproof structure comprises joint bolt gaskets and elastic sealing gaskets with holes formed in sections, wherein the joint bolt gaskets are arranged on the inner side of a nut of the joint connecting bolt in a closely attached mode, and gaps formed by the joint bolt gaskets, a bolt body of the joint connecting bolt and the bolt hole of the shield tunnel segment are filled with the elastic sealing gaskets. Compared with the prior art, the waterproof structure for sealing the high-water-pressure shield tunnel bolt hole has the advantages of being capable of effectively preventing seepage, waterproof, durable, adaptable to stress, convenient to mount and dismounted and the like.

Description

technical field [0001] The invention relates to the field of seam waterproofing engineering of existing shield tunnels, in particular to a waterproof structure for sealing bolt holes of high water pressure shield tunnels. Background technique [0002] In recent years, with the continuous development of underground space in my country and the continuous improvement of urban rail transit networks, the shield method has been widely used in urban subway tunnels and large underwater tunnels due to its advantages of high degree of mechanization, fast construction speed, and small environmental impact. widely used in engineering. According to the survey, water leakage in shield tunnels has become one of the main problems affecting the safety and operation of shield tunnels, especially for power tunnels, sewage tunnels, and subway tunnels. Water leakage not only brings many safety hazards to daily operations . In addition, many scholars have shown that the long-term leakage of wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38
CPCE21D11/383
Inventor 金跃郎丁文其吴炜枫朱洺嵚魏于量巩一凡赵天驰
Owner TONGJI UNIV
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