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A technology of composite lining and segment, applied in wellbore lining, tunnel lining, shaft equipment, etc., can solve problems such as load concentration, achieve the effect of good working environment, avoid damage, and enhance overall rigidity
Inactive Publication Date: 2020-04-10
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD +1
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
[0004] The invention proposes a flexible composite lining segment, which solves the problem that the existing rigid segment easily causes load concentration
Method used
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Embodiment 1
[0028] Such as figure 1 with 2 As shown, a flexible composite lining segment includes a lining body 1, a flexible body 2 and an arch 3. The flexible body 2 is located on the outside of the lining body 1 , and one end is implanted into the lining body 1 .
[0029] The inner surface of the lining body is flat or arc-shaped, and is arranged in blocks, and the block lining bodies are spliced into a ring in the circumferential direction, and spliced into a pipe in the axial direction. The connection between the link and the lining body between the pipes is no connection, tongue and groove connection, bolt connection, ball joint connection or socket connection. The lining body is a reinforced concrete segment, a prestressed concrete segment, a steel pipe segment or a composite segment.
[0030] The flexible body is bundle-shaped, and its section is circular, rectangular, elliptical or multi-circle twisted into a bundle, and its arrangement is quincunx, hexagonal or circular. ...
Embodiment 2
[0035] Such as image 3 with 4 As shown, a flexible composite lining segment includes a lining body 1, a flexible body 2 and an arch 3. The flexible body 2 is located on the outside of the lining body 1 , and one end is implanted into the lining body 1 .
[0036] The inner surface of the lining body is flat or arc-shaped, and is arranged in blocks, and the block lining bodies are spliced into a ring in the circumferential direction, and spliced into a pipe in the axial direction. The connection between the link and the lining body between the pipes is no connection, tongue and groove connection, bolt connection, ball joint connection or socket connection. The lining body is a reinforced concrete segment, a prestressed concrete segment, a steel pipe segment or a composite segment.
[0037] The flexible body is in the shape of a belt, and its section is round, rectangular, oval or multi-circle twisted into a bundle, and the arrangement is quincunx, hexagonal or round. Th...
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Abstract
The invention provides a flexible composite lining segment. The flexible composite lining segment includes a lining body, the lining body is connected with a flexible body, and the flexible body is located on the outer side of the lining body. The flexible composite lining segment has the following advantages that the characteristics that allow surrounding rocks to be properly deformed are made full use of, the stress mode for excavation of exposed surrounding rocks is optimized, the self-bearing capacity of the surrounding rocks is exerted to the greatest extent, part of the load of the surrounding rocks is bore and transmitted by the flexibly body and evenly dispersed onto a lining panel, and the damage of the concentrated load of the surrounding rocks to the lining panel is effectivelyavoided; the advantages of a prefabricated lining structure such as fast construction speed, good operating environment, high quality of finished products are fully exerted, the lining panel structureis reasonably stressed, the stress of the surrounding rocks in the initial stage is effectively released, the lining panel is prefabricated in a lighter and thinner mode advantageously, and thus thegood economic efficiency is achieved; and one end of the flexible body is implanted into the lining panel, the other end of the flexible body can be bonded together with the surrounding rocks throughfillers such as cement slurry, concrete, and polymer, and the overall stiffness of a support system is improved.
Description
technical field [0001] The invention relates to a tunnel lining segment, in particular to a flexible composite lining segment. Background technique [0002] At present, tunnel construction methods can be roughly divided into two categories, one is the combination of mechanical and manual methods, such as mining method, new Austrian method, new Italian method, etc. It has the advantages of rock self-bearing capacity and low engineering cost, but also has problems such as high construction safety risk, low degree of mechanization, high labor intensity, harsh working environment, serious waste of materials, and difficult quality assurance. [0003] The other is the use of full-section mechanical excavation support methods such as shield tunneling and pipe jacking, which have the advantages of high construction efficiency, good safety, and small environmental impact. There are problems such as low excavation efficiency and difficulty in making full use of the self-bearing capac...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08
CPCE21D11/08
Inventor 毕程程白中坤于少辉
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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