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.
CN110645013APending Publication Date: 2020-01-03HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2020-01-03

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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.
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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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