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Analog simulation experiment system for realizing composite stratum circular tunnel considering plane strain state and use method

A technology for similar simulation experiments and composite formations, which is applied in the field of making a model experimental device for similar simulation of composite formations, can solve problems such as difficulty in making composite formations, and achieve the effect of reducing test difficulty and errors

Pending Publication Date: 2021-12-28
THE FOURTH ENG CO LTD OF CHINA RAILWAYNO 20 BUREAU GRP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a similar simulation experiment system and method for realizing circular tunnels in composite strata considering the plane strain state, so as to solve the difficult problem of making composite rock strata with different inclination angles and thicknesses

Method used

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  • Analog simulation experiment system for realizing composite stratum circular tunnel considering plane strain state and use method
  • Analog simulation experiment system for realizing composite stratum circular tunnel considering plane strain state and use method
  • Analog simulation experiment system for realizing composite stratum circular tunnel considering plane strain state and use method

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with the accompanying drawings.

[0025] The invention combines the pouring system with the loading system, and can realize the pouring simulation of composite formations with different dip angles.

[0026] Such as figure 1 As shown, a similar simulation experiment system of the present invention to realize a circular tunnel in a composite stratum considering the plane strain state includes four sets of mutually independent loading systems 1, four sets of detachable baffles 4, two cover plates 6, support Frame 8, support hinge 9 and first hydraulic jack 10.

[0027] Such as figure 1 As shown, four sets of detachable baffles 4 and two cover plates 6 are enclosed to form a cuboid with a cavity inside. As the front and rear sides of the cuboid respectively, the cavity inside the cuboid is used for pouring composite strata; the bottom detachable baffle 4 is located on the support frame 8, and the four s...

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Abstract

The invention discloses an analog simulation experiment system for realizing a composite stratum circular tunnel considering a plane strain state and a use method, and the system comprises four sets of mutually independent loading systems, four sets of detachable baffles, two cover plates, a support frame, a support hinge and a first hydraulic jack. A cuboid with a cavity inside is defined by the four sets of detachable baffles and the two cover plates. The detachable baffles at the bottom are located on the support frame, and the four independent loading systems are located in the outer sides of the four detachable baffles respectively and can apply pressure to the detachable baffles. One end of the bottom detachable baffle is connected with one end of the corresponding loading system through the support hinge, and the other end of the bottom detachable baffle is connected with the other end of the corresponding loading system through the first hydraulic jack. Model manufacturing and a loading device are combined, pouring of rock stratums with different inclination angles and different thicknesses can be achieved, and meanwhile the purpose of controlling the strength between the rock stratums is achieved by adjusting the solidification time of the rock stratums.

Description

technical field [0001] The invention relates to the field of physical simulation experiments of similar materials in the discipline of geotechnical engineering, in particular to a model experiment device for making similar simulations of composite strata. Background technique [0002] At present, in the field of similar simulation experiments, when making physical models of similar materials for composite rock formations, due to the limitations of ordinary experimental devices, it is difficult to pour composite rock formations with a certain inclination angle, and the experimental results are not ideal. Most of the similar material simulation experiments on composite rock formations only consider the horizontal or vertical dip conditions. Therefore, in order to simulate the instability and failure process of tunnels in composite formations with different dip angles, the present invention proposes the idea of ​​combining model making and loading devices. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N3/02G01N3/12
CPCG01N1/28G01N3/02G01N3/12
Inventor 陈传平杨圣奇甄治国田文岭钱建华王苏生张诚涛李志永屈贵杨李友岗
Owner THE FOURTH ENG CO LTD OF CHINA RAILWAYNO 20 BUREAU GRP
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