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Shock absorption structure of active fault crossing tunnel

A technology for active faults and tunnels, applied in the field of shock absorbing structures, can solve the problems of difficulty in ensuring the smoothness of the track in the tunnel, and difficulty in having a shock absorption effect.

Pending Publication Date: 2021-09-07
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the long-term continuous fault creep, it is difficult to ensure the smoothness of the track operation in the tunnel, and it is difficult to have an excellent shock absorption effect in the event of sudden earthquakes

Method used

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  • Shock absorption structure of active fault crossing tunnel
  • Shock absorption structure of active fault crossing tunnel
  • Shock absorption structure of active fault crossing tunnel

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a shock absorption structure of an active fault crossing tunnel, and relates to the technical field of tunnel engineering. The structure comprises an outer layer support, a supporting structure and an inner layer support which are sequentially arranged in the radial direction of the tunnel, the two sides of the supporting structure are connected with the outer layer support and the inner layer support respectively, and the supporting structure comprises a plurality of supporting assemblies arranged in the circumferential direction of the tunnel. A first gap is formed between every two adjacent supporting assemblies, and every two adjacent supporting assemblies are hinged through a first bolt. The shock absorption structure of the active fault crossing tunnel can remarkably improve the shock absorption effect of the active fault crossing tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a shock-absorbing structure for a tunnel spanning an active fault. Background technique [0002] my country is located between the Eurasian plate, the Indian Ocean plate, and the Pacific Rim plate. Affected by plate movements, active faults of various sizes are widely distributed. Constrained by route selection, many tunnel railway-related projects to be constructed or under construction have to cross fault areas. Active faults have two basic modes of activity: creep-slip and stick-slip. Most active faults accumulate strain energy through continuous and slow sliding. After reaching the limit, they suddenly shift and even cause earthquakes. This creep-stick-slip process will cause The surrounding rock and the tunnel are sheared and deformed, destroying the tunnel structure. How to reduce the impact of upper and lower wall dislocation and ground vibration on tunnels cr...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21D11/02E21D11/08E21D11/10E21D21/00
CPCE21D11/00E21D11/006E21D11/02E21D11/08E21D11/10E21D21/00
Inventor 沈贻欢周辉卢景景韩钢张传庆张宁朱勇
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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