Buried type high-pressure water channel or tunnel seepage-resistant lining structure

A high-pressure waterway and buried technology, which is applied in tunnel lining, wellbore lining, tunnel, etc., can solve the problems of poor anti-seepage durability, water permeation instability, and poor anti-seepage performance, so as to achieve convenient operation and prevent buckling damage , The effect of reducing the project cost

Inactive Publication Date: 2012-07-04
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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AI Technical Summary

Problems solved by technology

The disadvantage of reinforced concrete lining and concrete lining structure is that cracks will be formed under high water pressure, and the anti-seepage performance is poor. The high-pressure water seepage will easily cause a large amount of water seepage or seepage instability. Even if grouting is used to treat the permeability of surrounding rock In the case of the case, its anti-seepage durability is not good

Method used

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  • Buried type high-pressure water channel or tunnel seepage-resistant lining structure
  • Buried type high-pressure water channel or tunnel seepage-resistant lining structure

Examples

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with the drawings.

[0009] See figure 1 An anti-seepage steel pipe 1 is provided in the high-pressure pipeline section or high-pressure bifurcated pipe section 4, and leveling or backfill concrete 3 is arranged between the outer wall of the anti-seepage steel pipe 1 and the high-pressure pipe section or the high-pressure bifurcated pipe section 4. The inner wall is provided with reinforced concrete lining 2.

[0010] See figure 1 , By installing a certain thickness of reinforced concrete lining 2 in the anti-seepage steel pipe 1 to share the internal water pressure acting on the anti-seepage steel pipe 1 on the outer layer of reinforced concrete, so as to reduce the thickness of the anti-seepage steel pipe 1, and at the same time use the reinforced concrete lining 2 It has good compressive performance, resists the external water pressure transmitted through the outer steel pipe, completely avoids the occ...

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Abstract

The invention discloses a buried type high-pressure water channel or tunnel seepage-resistant lining structure. A seepage-resistant steel tube (1) is disposed in a high-pressure pipeline section or a high-pressure branch pipe section. Level-up or backfill concrete (3) is arranged between the outer wall of the seepage-resistant steel tube (1) and the high-pressure pipeline section or the high-pressure branch pipe section. Reinforced concrete lining (2) is disposed on the inner wall of the seepage-resistant steel tube (1). The good seepage-resistant property of the steel tube is utilized to solve the seepage problem of the high-pressure water channel, and the good compressive property of reinforced concrete is utilized to prevent the steel tube from being bent and damaged. The lining structure provides another technical support for further promoting technical progress of high-water-head pumped-hydro energy storage power station construction.

Description

Technical field [0001] The invention relates to a lining structure, in particular to an anti-seepage and supporting structure for buried high-pressure waterways or traffic tunnels in the fields of water conservancy and hydropower engineering and traffic engineering, in particular to the high-pressure pipe section of the high-pressure diversion tunnel of a pumped storage power station Seepage prevention and support of high-pressure bifurcated pipe section. Background technique [0002] Under the existing technical conditions, the high-pressure water channel lining structure of hydropower stations and pumped storage power stations with underground powerhouses adopts structural forms such as steel lining, reinforced concrete lining or concrete lining. Under conditions of high water head and high external water pressure, steel lining structure has the advantages of good anti-seepage performance and convenient maintenance and replacement. Its disadvantage is that under high external w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/14E21D11/04
Inventor 蒋中明熊小虎冯树荣张新敏
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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