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Tunnel earthquake absorbing structure for rapid repairing after earthquake

A tunneling and fast technology, applied in tunnels, tunnel linings, wellbore linings, etc., can solve problems such as cracks, collapses, and road damage in large areas of tunnels, achieve good feasibility, reduce damage, and quickly repair tunnels.

Pending Publication Date: 2020-01-03
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention aims to solve the problem that the existing tunnels are prone to cracks in the lining and damage to the road surface during earthquakes, which leads to cracks or even collapses in a large area of ​​the tunnel, and further provides a quick repair tunnel after the earthquake. earthquake structure

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  • Tunnel earthquake absorbing structure for rapid repairing after earthquake
  • Tunnel earthquake absorbing structure for rapid repairing after earthquake
  • Tunnel earthquake absorbing structure for rapid repairing after earthquake

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specific Embodiment approach 1

[0019] Specific implementation mode one: combine Figure 1~4 Describe this embodiment, a tunnel shock-absorbing structure for rapid repair after an earthquake, which includes a composite lining and a plurality of shock-absorbing component bodies, wherein the composite lining includes primary support 1, waterproof layer 2 and secondary lining 3, The main body of the shock absorbing member includes two connectors 4, several perforated steel plates 5 and several high-strength bolts 6, wherein the two connectors 4 are symmetrically embedded in the secondary lining 3 and there is a gap between the two connectors 4 , the two connectors 4 are fixedly connected by a number of perforated steel plates 5, wherein a number of perforated steel plates 5 are symmetrically arranged on the upper and lower sides of the two connectors 4, and each perforated steel plate 5 is connected to two The connectors 4 are respectively fixed by high-strength bolts 6, and the middle part of each perforated s...

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Abstract

The invention provides a tunnel earthquake absorbing structure for rapid repairing after an earthquake and belongs to the technical field of tunnel construction. According to the tunnel earthquake absorbing structure for rapid repairing after the earthquake, the problem that an existing tunnel generates large-area area cracking and even collapsing as lining cracking and pavement damage are easilygenerated in the existing tunnel is solved. Two connecting pieces are symmetrically embedded in a secondary lining, and a gap exists between the two connecting pieces; the two connecting pieces are fixedly connected with each other through a plurality of perforated steel plates, wherein the plurality of perforated steel plates are symmetrically placed on the upper and lower sides of the two connecting pieces in pairs; each perforated steel plate is fixedly connected with the two connecting pieces through high-strength bolts; and an earthquake absorbing hole is formed in the middle part of eachperforated steel plate. By arranging an earthquake absorbing member main body in a tunnel structure, preliminary bracing surrounding rock stabilizing effect can be sufficiently developed; under the action of the earthquake, a surrounding rock and a lining structure can keep the stability of the surrounding rock; the earthquake absorbing member main body can consume a large quantity of earthquakeenergy and concentrate earthquake damage on the member main body so that the damage to the tunnel structure is reduced.

Description

technical field [0001] The invention relates to a tunnel shock-absorbing structure quickly repaired after an earthquake, and belongs to the technical field of tunnel construction. Background technique [0002] As an underground structure, the tunnel is generally rarely damaged by earthquakes under the constraints of the surrounding rock and its own seismic capacity. After the Wenchuan earthquake in my country, many highway tunnels were seriously damaged, which had a great impact on the post-earthquake transportation system and people's life safety. Therefore, the shock absorption and rapid repair of the tunnel after the earthquake have become urgent problems to be solved in the project. In mountain tunnels with high intensity or poor surrounding rock conditions, the anti-seismic method of tunnels by strengthening the surrounding rock and strengthening the structure often cannot achieve the expected effect, and will be affected by the economics of the project. [0003] Tunn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/14E21D11/38
CPCE21D11/003E21D11/14E21D11/38
Inventor 李爽周同来翟长海
Owner HARBIN INST OF TECH
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