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Bidirectional slip-type physical model box for simulating cross-fault tunnel and cross-fault tunnel mechanical behavior testing method

A physical model, sliding technology, applied in the testing of elasticity, testing the strength of materials using a stable tension/compression, testing of machines/structural components, etc.

Pending Publication Date: 2019-06-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art. One of the purposes of the present invention is to provide a two-way sliding physical model box for simulating cross-fault tunnels to solve the existing physical model boxes for simulating the mechanical behavior characteristics of cross-fault tunnels. It can only simulate the problem of fault displacement in a single direction, realize the simulation of compound displacement, restore the actual engineering situation more realistically, and improve the accuracy of the research on the mechanical behavior characteristics of cross-fault tunnels

Method used

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  • Bidirectional slip-type physical model box for simulating cross-fault tunnel and cross-fault tunnel mechanical behavior testing method
  • Bidirectional slip-type physical model box for simulating cross-fault tunnel and cross-fault tunnel mechanical behavior testing method
  • Bidirectional slip-type physical model box for simulating cross-fault tunnel and cross-fault tunnel mechanical behavior testing method

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Embodiment 1

[0050] In this embodiment, a two-way sliding physical model box that simulates a cross-fault tunnel is provided, and its structure is as Figure 1~5 As shown, the physical model box includes a supporting frame 1, a loading hopper, a guide rail, a sliding block and a two-way power system.

[0051] Such as Figure 4 As shown, the supporting frame 1 includes a main frame 1-1, a first sub-frame 1-2, and a second sub-frame 1-3. The main frame 1-1 is composed of an upper frame and a lower frame for supporting the upper frame. Both the upper frame and the lower frame are cuboid frames with a hollow cavity. The upper frame and the lower frame are fixed together to form the main frame of the cuboid frame. Four universal wheels 17 are provided at the bottom of the frame. The front and rear sides of the upper frame are provided with a diagonal beam 2 respectively. The two ends of each diagonal beam are respectively connected with the upper and lower cross beams of the upper frame. The two d...

Embodiment 2

[0057] In this embodiment, the mechanical behavior test of the cross-fault tunnel is performed on the basis of the physical model box provided in the embodiment 1. This embodiment specifically tests the mechanical behavior of the tunnel under the complex dislocation condition, and the steps are as follows:

[0058] ① Brush a layer of engine oil on the inner wall of the loading hopper of the physical model box, adjust the position of the movable hopper so that the fixed hopper and the open side of the movable hopper cooperate with each other to form a loading hopper with a rectangular parallelepiped trough structure. Install two loading hoppers on the physical model box. A displacement meter is used to measure the moving distance of the movable hopper in the horizontal direction and the longitudinal moving distance. The specific displacement meter is a digital displacement dial indicator, which is used in conjunction with a universal magnetic table base, and the digital displacement...

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Abstract

The invention provides a bidirectional slip-type physical model box for simulating a cross-fault tunnel, which comprises a support frame, a loading hopper, a guide rail, a slider and a bidirectional power system. The loading hopper comprises a fixed hopper and a movable hopper. With the cooperation of the movable hopper with the slider, the guide rail and the bidirectional power system, the movable hopper can move horizontally and longitudinally at the same time, simulation of composite dislocation movement is realized, the actual project condition can be restored more truly, and the accuracyof the research on the mechanical behavior characteristics of the cross-fault tunnel is improved. On the basis of the bidirectional slip-type physical model box, the invention also provides a cross-fault tunnel mechanical behavior testing method.

Description

Technical field [0001] The invention belongs to the field of geotechnical engineering and tunnel engineering, and relates to a two-way sliding physical model box for simulating a cross-fault tunnel, and a method for testing mechanical behavior of a cross-fault tunnel. Background technique [0002] During the construction of road and railway tunnels or mine roadways, it is often encountered that they cross faults or broken zones and other unfavorable geological bodies. The surrounding rocks near faults and broken zones tend to have low strength, prominent cracks and strong water permeability, and arching is prone to occur during construction. Engineering accidents such as collapse, uneven settlement, and water and mud inrush have caused heavy losses to the construction. At the same time, tectonic fault zones are often seismically active zones. Geological tectonic movements such as earthquakes can cause such faults, which will cause major damage to tunnels under construction or com...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01M5/00
Inventor 高明忠王飞王明耀陆彤彭高友杨本高陈海亮刘强
Owner SICHUAN UNIV
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