A multi-angle adjustable fault dislocation tunnel model test box under multi-directional coordinated loading

The multi-angle adjustable fault displacement tunnel model test chamber with multi-directional collaborative loading solves the problems of existing devices being unable to simulate composite displacement and having non-adjustable angles, enabling high-precision research on the disaster mechanism of tunnel structures and improving the scientificity and reliability of engineering seismic design.

CN122108500APending Publication Date: 2026-05-29CHINA RAILWAY LIUYUAN GRP CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY LIUYUAN GRP CO LTD
Filing Date
2026-02-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing experimental devices cannot accurately reproduce the disaster mechanism of tunnels under multi-directional faulting, and cannot flexibly adjust the fault angle, making it impossible to systematically study the influence of fault dip angle on tunnel stress.

Method used

A multi-angle adjustable fault slip tunnel model test chamber with multi-directional collaborative loading is designed. It adopts a modular movable box, a multi-angle steplessly adjustable slip surface system and an independent multi-directional collaborative loading drive system to achieve high-precision simulation of strike-slip, normal/reverse faults and oblique slip slip. An integrated sealing and support system is used to prevent soil leakage.

Benefits of technology

It achieves stepless adjustment of the fault surface angle within the full range of 0° to 90°, realistically reproduces the spatial composite fault process, supports multiple loading modes, and provides key test data to improve the seismic design capabilities of engineering projects.

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Abstract

The application discloses a multi-angle adjustable fault dislocation tunnel model test box of multi-directional cooperative loading, and belongs to the technical field of seismic resistance of tunnels and underground engineering and geological disaster simulation. The test box mainly comprises a modular movable box body system, a multi-angle adjustable dislocation surface system, an independent multi-directional cooperative loading driving system and an integrated sealing and supporting system, realizes stepless adjustment and high-precision locking of a dislocation fan surface inclination in the range of 0°-90°, realizes accurate coordinated control of displacement and loading rate under the control of a central control system, and can truly reproduce strike-slip, normal / inverse fault, oblique slip and multi-stage time sequence composite fault dislocation behaviors. The application solves the technical problems that the existing test device cannot simulate fault space composite dislocation behaviors and the angle is not flexible, and provides an advanced physical test platform for seismic mechanism research, safety evaluation and disaster prevention design of linear underground structures such as tunnels crossing active fault zones.
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