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Device and method for simulating forces in different areas of arched tunnel

A tunnel and area technology is applied in the field of devices for simulating stress in different regions of an arched tunnel, which can solve the problem that the mechanical characteristics and related laws of the fluid-filled lining support structure of the arched tunnel cannot be measured truly, and achieve the Uniform, uniform force and safe effect

Inactive Publication Date: 2019-06-07
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a device and method for simulating the stress in different areas of an arched tunnel, which can solve the problem that the stress characteristics and related laws of the fluid-filled lining support structure of an arched tunnel cannot be measured truly, and can Realistically simulate the force conditions in different areas of the arch tunnel fluid-filled lining support structure, real-time multi-directional monitoring of various mechanical parameters, real-time feedback on the tunnel force situation, and quantitative research on the fluid-filled lining support structure under different loads and the maximum support force, load reduction law, stress equalization law and automatic pressure relief law under different filling materials. The device used is simple in structure, low in cost and easy to operate, and can be applied to the research of tunnels under various conditions.

Method used

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  • Device and method for simulating forces in different areas of arched tunnel
  • Device and method for simulating forces in different areas of arched tunnel
  • Device and method for simulating forces in different areas of arched tunnel

Examples

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Embodiment 1

[0040] Such as Figure 1-Figure 4As shown, a device for simulating the forces in different regions of an arched tunnel, including simulating the three-dimensional structure of the tunnel,

[0041] The three-dimensional structure of the simulated tunnel is composed of a hollow arc-shaped tunnel section 1 without a cover and a hollow uncovered linear tunnel section 4 connected to both ends of the arc-shaped tunnel section 1. The highest point of the side wall 2 of the arc-shaped tunnel section 1 is provided with a first pressure relief port 6, and a second pressure relief port 6 is provided on the side wall 2 between the first pressure relief port 6 and a hollow straight tunnel section 4 without a cover. The pressure port 7 simulates the three-dimensional structure of the tunnel filled with a fluid filling 8; the fluid filling 8 on the top opening of the arc-shaped tunnel section 1 is covered with a thin film;

[0042] The top of the three-dimensional structure of the simulated...

Embodiment 2

[0053] A method for simulating stress tests in different regions of an arched tunnel by using the above-mentioned device, the method includes the following steps:

[0054] Step 1: Prefabricate the three-dimensional structure of the simulated tunnel;

[0055] Step 2: Open the first pressure relief port 6 at the highest point of the side wall 2 of the simulated three-dimensional structure of the tunnel, and open the first pressure relief port 6 on the side wall 2 between the first pressure relief port 6 and a hollow straight tunnel section 4 without a cover. Second pressure relief port 7;

[0056] Step 3: Paste the pressure sensor at the corresponding position on the inner wall of the simulated three-dimensional structure of the tunnel;

[0057] Step 4: Weld the strain gauges at the corresponding positions on the inner wall of the three-dimensional structure of the simulated tunnel;

[0058] Step 5: Filling the fluid filling: Fill the fluid filling 8 into the three-dimensional...

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Abstract

The invention relates to a device for simulating forces of different regions of an arched tunnel, which comprises a simulated tunnel three-dimensional structure of a tunnel, wherein the simulated tunnel three-dimensional structure of the tunnel consists of hollow uncovered arch tunnel sections and hollow uncovered straight tunnel sections connected to two ends of the arched tunnel sections; the arched tunnel sections are communicated with the hollow uncovered tunnel sections; a first pressure relief port is formed at the highest position of one side wall of the arched tunnel section; a secondpressure relief port is formed in the side wall between the first pressure relief port and one hollow uncoveredstraight tunnel section, and fluid filling materials are filled in the simulated tunnel three-dimensional structure. The device and the method for simulating forces in different areas of the arched tunnel can solve the problem that force characteristics and related rules of a fluid filling lining supporting structure of the arched tunnel cannot be truly measured, can truly simulate force conditions in different areas of the fluid filling lining supporting structure of the arched tunnel, can timely feedback the force conditions of the tunnel in real time, and can be applied to research on the tunnel under various different conditions.

Description

technical field [0001] The invention relates to the technical field of tunnels, in particular to a device and method for simulating forces in different regions of an arched tunnel, which is suitable for research in the fields of engineering tunnels, engineering roadways, mining cavern support, and the like. Background technique [0002] In recent years, with the rapid development of my country's national economy, the construction of expressway and national highway as the main body of the rapid transportation network has made rapid progress. Today, economy and efficiency play an increasingly prominent role. However, due to the increasingly complex geological and engineering conditions of the tunnel, problems during and after the tunnel construction have become more prominent. For example, during the construction of the Guanjiao Railway Tunnel, the bottom of the tunnel was bulged by about 1m. 30cm; the side wall, arch and bottom of the cross passage of the Simplon Railway Tunn...

Claims

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Application Information

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IPC IPC(8): G09B25/04
Inventor 刘杰高素芳韩绍康兰俊孙涛黎照谢晓康唐洪宇李洪亚张瀚李远航何卓文高进张罗送罗越文莫承林姜锋
Owner CHINA THREE GORGES UNIV
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