Test device for simulation of near-fault seismic oscillation initiated by reverse fault strike-slip movement

A technology of stick-slip dislocation and test equipment, which is applied in the direction of measuring equipment, vibration testing, machine/structural component testing, etc., can solve the problem of inability to effectively simulate the mechanism of stick-slip source of active faults, achieve simple structure, reduce test cost effect
CN107271128AActive Publication Date: 2017-10-20SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2017-10-20

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Abstract

The present invention discloses a test device for simulation of near-fault seismic oscillation initiated by reverse fault strike-slip movement. The device comprises a cube structure test box body with an opening at the upper surface, and a movable baffle plate is arranged at the lower portion of the surface of one side of the test box body; the upper portion of the movable baffle plate is provided with an embedded plate extended into the test box body, and the movable baffle plate can slide along the embedded plate and the lower surface of the test box body; the test box body is internally provided with a simulation fault communicating the upper surface and the lower surface; a simulation tunnel passing through the simulation fault is arranged at the upper portion of the internal portion of the test box body; an upper disc is arranged between one side, close to the movable baffle plate, of the simulation fault and the inner surface of the test box body, and a lower disc is arranged between one side, far away from the movable baffle plate, of the simulation fault and the inner surface of the test box body; and a plurality of serial pressure-sensitive micro-explosion devices are arranged at the lower portion of the simulation tunnel in the simulation fault. The test device for simulation of near-fault seismic oscillation initiated by reverse fault strike-slip movement can really simulate the seismogenic mechanism of the near-fault seismic oscillation under the effect of the simulation reverse fault strike-slip effect, the test result is accurate, and the cost is low.
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Description

technical field

[0001] The invention relates to a test device for seismic response of tunnels, in particular to a test device for simulating reverse fault stick-slip dislocation to cause near-fault ground motion. Background technique

[0002] With the development of tunnel engineering in China, people pay more and more attention to the safety of tunnels in natural disasters such as earthquakes; similar model test is one of the two main methods of tunnel research and analysis (namely similar model test and numerical simulation), because its Compared with the numerical simulation method, it is more intuitive and authentic, so it is widely used in the research of tunnel disaster prevention; the model test method of the tunnel under the action of earthquake is often the shaking table test, that is, the tunnel is placed in the In the model box, the model box is placed on the vibrating table; the vibrating table vibrates in a predetermined direction, and then the deformation and d...

Claims

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