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Seismic Structure and Construction Method for Tunnel Lining in High Intensity Earthquake Area

A technology for anti-seismic structures and seismic areas, applied in the field of geotechnical engineering, can solve problems such as tunnel lining structure damage

Active Publication Date: 2022-03-18
NORTHWEST RES INST CO LTD OF C R E C
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an anti-seismic structure suitable for tunnel linings in high-intensity earthquake areas, and to solve the problem of structural damage to tunnel linings in tunnels passing through complex areas such as mountains under the action of earthquakes

Method used

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  • Seismic Structure and Construction Method for Tunnel Lining in High Intensity Earthquake Area
  • Seismic Structure and Construction Method for Tunnel Lining in High Intensity Earthquake Area
  • Seismic Structure and Construction Method for Tunnel Lining in High Intensity Earthquake Area

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, the anti-seismic structure of the present invention includes primary support 1 and secondary lining 2 arranged coaxially, there is a gap between primary support 1 and secondary lining 2, and the side wall of primary support 1 away from secondary lining 2 The first waterproof layer 5 is laid, the second waterproof layer 6 is laid on the side wall of the primary support 1 facing the secondary lining 2, and the third waterproof layer 6 is laid on the side wall of the secondary lining 2 facing away from the primary support 1 Layer 7, such as figure 2 ; along the axial direction of the secondary lining 2, a plurality of shock absorber groups are installed at equal intervals in the gap; each shock absorber group is composed of at least five dampers 3, and all the dampers in the same shock absorber group 3 are ev...

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Abstract

The invention discloses an anti-seismic structure suitable for tunnel lining in high-intensity earthquake areas and a construction method thereof. The anti-seismic structure includes primary support and secondary lining with gaps therebetween; along the axial direction of the secondary lining, inside the gap, etc. Multiple damper packs are spaced apart; each pack consists of at least five dampers; the space enclosed by primary support, secondary lining and all dampers is filled with porous rubber particles concrete. Build primary support and secondary lining as required in the section where lining is required, lay water-stop layer, install damper between primary support and secondary lining, spray porous concrete mixed with rubber particles, and build a structure suitable for high-intensity earthquakes Seismic structure of the tunnel lining in the area. The anti-seismic structure has certain cushioning properties, and can allow minor deformation and damage to the secondary lining. After the earthquake, the lining structure will not experience large deformation and damage, which solves the problem of structural damage to the tunnel lining under the earthquake.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and relates to a TMD damping anti-seismic structure suitable for tunnel lining in high-intensity earthquake areas, and is mainly used in tunnel lining projects in some earthquake-prone areas. The invention also relates to a construction method of the anti-seismic structure. Background technique [0002] Due to my country's vast territory and complex terrain, tunnels have become a necessary way to cross complex areas such as mountains during the construction of transportation facilities. According to incomplete statistics, the mileage of tunnels currently under construction and built in my country has exceeded 10,000km. However, due to the influence of natural disasters such as design, construction, terrain, and earthquakes, it is easy to cause tunnel lining structure damage, tunnel water leakage, and ballast bed damage, which will affect the normal use of the tunnel structure. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D11/00E21D11/38
CPCE21D11/10E21D11/003E21D11/38
Inventor 吴红刚张少龙赵守全张俊德庞伟军牌立芳董占林王永翔杨昊天张雄伟朱兆荣
Owner NORTHWEST RES INST CO LTD OF C R E C
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