Multidirectional Composite Lining Seismic Structure in Landslide and Fault Zone and Its Construction Method

An anti-seismic structure and construction method technology, applied in the field of geotechnical engineering, can solve problems such as tunnel lining structure damage

Active Publication Date: 2021-11-02
NORTHWEST RES INST CO LTD OF C R E C +1
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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 a multi-directional composite lining anti-seismic structure suitable for landslides and fault areas, so as to solve the problem that the tunnel lining structure is damaged when the tunnel passes through complex areas such as landslides and faults under the action of earthquakes

Method used

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  • Multidirectional Composite Lining Seismic Structure in Landslide and Fault Zone and Its Construction Method
  • Multidirectional Composite Lining Seismic Structure in Landslide and Fault Zone and Its Construction Method
  • Multidirectional Composite Lining Seismic Structure in Landslide and Fault Zone and Its Construction Method

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the lining structure of the present invention includes primary support 1 and secondary lining 2 coaxially arranged, there is a gap between primary support 1 and secondary lining 2, along the axial direction of secondary lining 2, inside the gap, etc. A plurality of dampers 3 are installed at intervals, and all dampers 3 are located at the vault of the secondary lining 2; a first water-stop layer 5 is laid on the side wall of the primary support 1 facing the secondary lining 2, and the secondary lining 2 The second water-stop layer 6 is laid on the side wall facing the primary support 1, and the third water-stop layer 7 is laid on the side wall of the secondary lining 2 away from the primary support 1, such as figure 2 A filling layer 4 is provided between the first water-stopping layer 5 and the second wate...

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Abstract

The invention discloses a multi-directional composite lining anti-seismic structure in a landslide and a fault area and a construction method thereof. The anti-seismic structure includes a primary support and a secondary lining with gaps therebetween, and a plurality of dampers are installed at equal intervals in the gaps. There is a filling layer. During tunnel excavation, primary support and secondary lining shall be constructed in the section where lining is required, water-stop layer shall be laid, multiple dampers shall be installed between primary support and secondary lining, and rubber particles mixed with it shall be sprayed. After the porous concrete is solidified, a filling layer is formed to build a multi-directional composite lining seismic structure in landslides and fault areas. The lining anti-seismic structure has light weight and high rigidity, which can ensure the stability of the tunnel lining structure body under the earthquake as much as possible; at the same time, it has the function of buffering and absorbing energy, and can withstand the impact of the surrounding rock in the landslide section on the TMD damper. Directional force, and decompose and dissipate the received force to protect the lining structure from damage in the landslide section.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and relates to a tunnel lining multi-directional composite TMD damping lining anti-seismic structure suitable for landslide areas and broken zones in fault areas, and is mainly used in tunnel lining projects for geological disasters such as common landslides. Background technique [0002] With the continuous improvement of my country's transportation system, the construction of some railways and highways must pass through mountainous areas with complex terrain and poor geology in the form of tunnels, so they are inevitably affected by these geological disasters. At present, the geological disasters often encountered in tunnels in mountainous areas are mainly landslides and earthquakes, which mainly affect the tunnel structure by destroying the lining structure of the tunnel. TMD dampers are often used in the seismic design of high-rise buildings and bridges due to their simple st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20E21D11/38
CPCE02D17/20E21D11/38
Inventor 吴红刚张少龙朱兆荣张俊德庞伟军牌立芳董占林王永翔杨昊天张雄伟赵守全
Owner NORTHWEST RES INST CO LTD OF C R E C
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