Tunnel lining and surrounding rock mechanical characteristic test model device and test method

A technology of tunnel model and feature testing, applied in the direction of measuring devices, testing material strength by applying stable tension/compression, scientific instruments, etc.

Pending Publication Date: 2020-11-20
CHANGSHA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are deficiencies in research simply using technical means such as theoretical analysis and numerical calculation.

Method used

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  • Tunnel lining and surrounding rock mechanical characteristic test model device and test method
  • Tunnel lining and surrounding rock mechanical characteristic test model device and test method
  • Tunnel lining and surrounding rock mechanical characteristic test model device and test method

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Embodiment Construction

[0054] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments. The invention provides a model device for testing the mechanical characteristics of tunnel lining and surrounding surrounding rock, including a tunnel model, a bench, a loading system and a measurement system. The tunnel model is set in the bench, and the loading system is also set in the bench to test the tunnel model. Load, make the tunnel model bear the load, simulate the real stress environment of the tunnel and surrounding surrounding rocks, and measure the stress and deformation of the tunnel model by the measurement system; wherein, the tunnel model includes the tunnel lining and surrounding surrounding rocks.

[0055]Specifically, the platform includes a reaction force support plate 1, left and right side plates 2, a bearing plate 3, a bottom plate 4, fr...

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Abstract

The invention relates to the technical field of tunnel construction, in particular to a tunnel lining and surrounding rock mechanical characteristic test model device. The device comprises a tunnel model, a rack, a loading system and a measuring system; the tunnel model is constructed in a simulated mode through similar materials according to the actual tunnel size and the reduced scale proportion. The tunnel model is arranged in the rack, the loading system is also arranged in the rack and used for loading the tunnel model, the measuring system is used for measuring the stress and deformationof the tunnel model, and the tunnel model comprises a tunnel lining and peripheral surrounding rock. The tunnel lining and surrounding rock mechanical characteristic test model device can be used forbroad researchers to study the damage-causing mechanism of cavities behind the lining, and the test result can provide reference for actual engineering.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a test model device and a test method for the mechanical characteristics of tunnel lining and surrounding rock. Background technique [0002] Cavities on the backside of tunnel linings are a common quality defect. Due to the particularity of the tunnel project and the complexity of the engineering geology and hydrogeological conditions, the hazard mechanism of voids on the back of the tunnel lining is ambiguous, and the interaction between the surrounding rock and the support is still unclear. At present, it is insufficient to use technical means such as theoretical analysis and numerical calculation to carry out research. [0003] A large number of engineering practices have proved that the geomechanical model test method is an effective method, which can objectively reflect the relationship between the surrounding rock and the tunnel lining structure, and the test ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0003G01N2203/0019G01N2203/0032G01N2203/0075G01N2203/0617G01N2203/0676G01N2203/0682
Inventor 雷鸣易驹常锦张锐匡希龙
Owner CHANGSHA UNIVERSITY
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