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Model test device and method for operating highway tunnel lining disease evolution rule

A model test device, a technology for highway tunnels, applied in the measurement device, the use of stable tension/pressure to test the strength of materials, the preparation of samples for testing, etc. It is impossible to accurately simulate the changes of surrounding rock pressure and other problems, so as to simplify the demoulding work and facilitate the processing and production.

Pending Publication Date: 2022-03-18
CCCC ROAD & BRIDGE SPECIAL ENG
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Problems solved by technology

[0003] Existing road tunnel disease research model tests often only consider the static characteristics of the diseased tunnel under the action of ground stress, and the vehicle load of the operating road tunnel is also an important factor affecting the lining stability, which is often ignored in the research
In the ground stress simulation, the surrounding rock pressure under the influence of depth is often ignored, and the force exerted by t

Method used

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  • Model test device and method for operating highway tunnel lining disease evolution rule
  • Model test device and method for operating highway tunnel lining disease evolution rule
  • Model test device and method for operating highway tunnel lining disease evolution rule

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Embodiment Construction

[0065] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0066] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have Certain orientations, co...

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Abstract

The invention discloses an operation highway tunnel lining disease evolution law model test device comprising a tunnel lining model pouring system used for pouring and forming a lining and forming a cavity and a crack on the lining; the tunnel surrounding rock pouring system is used for pouring and forming surrounding rock, and lining placement space is reserved in the surrounding rock; the tunnel burial depth loading system is used for pressurizing the top of the surrounding rock; the tunnel confining pressure loading system is used for pressurizing the periphery of the surrounding rock; the automobile load simulation system is used for impacting the bottom of the lining; and the monitoring system comprises a strain gauge, a soil pressure sensor, a monitor and a crack observation instrument. The invention further discloses a model test method for the evolution law of the lining diseases of the operating highway tunnel. The device is simple in structure and convenient to operate, can be used for carrying out defect tunnel lining defect prefabrication, highway tunnel ground stress and operation highway tunnel automobile load simulation, can be applied to various working conditions of highway tunnels, and is high in accuracy and wide in application range.

Description

technical field [0001] The invention relates to the technical field of road tunnel model tests. More specifically, the present invention relates to a model test device and method for the evolution law of lining disease in operational highway tunnels. Background technique [0002] The engineering geology and hydrogeological conditions of the mountains through which the road tunnel passes are complex and changeable, coupled with the reasons of tunnel construction technology and operation level, after the completion and operation of the road tunnel, with the accumulation of operation time, the problem of road tunnel disease has become increasingly prominent. Water leakage, lining voids, lining cracks, pavement cracks, base subsidence, bottom heaving, frost damage and other diseases are increasing in tunnels. Among them, lining voids and lining cracks are the most common diseases in tunnels, and they are also the main causes of other diseases in tunnels. In recent years, many ...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/307G01N3/02G01N1/36
CPCG01N3/12G01N3/307G01N3/02G01N1/36G01N2203/0003G01N2203/0019G01N2203/0044G01N2203/0048G01N2203/0066G01N2203/0075G01N2203/0682
Inventor 乐绍林韩永平全小娟曾松亭赵东奎周欢杨曦周传波蒋楠赵亚峰黄一文陈锋
Owner CCCC ROAD & BRIDGE SPECIAL ENG
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