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Multi-scale analog simulation test platform for simulating collapse of coal covering rock

A similar simulation, coal mine overburden technology, applied in the field of geotechnical engineering, can solve problems such as the inability to establish a scale model, the fixed size of the test platform, and the inability to apply horizontal loads to a multi-scale model.

Active Publication Date: 2016-03-16
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. A variety of similar model materials can be used, but the size of the test platform is fixed, and the establishment of multi-scale models and the application of horizontal loads cannot be realized;
[0004] 2. The application of horizontal load can be realized, but the test platform is relatively open, and only prefabricated gypsum board can be used as the test material, and the test platform cannot realize the establishment of scale models

Method used

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  • Multi-scale analog simulation test platform for simulating collapse of coal covering rock

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the present invention provides a multi-scale similar simulation test platform for simulating the collapse of coal mine overburden, including a platform base 1, a first side plate 2, a second side plate 3 and an upper roof 4, and the first side plate 2 Fixedly connected to one side of the platform base 1, the first side plate 2 is provided with a plurality of evenly distributed horizontal through holes, and the first horizontal pressure head 21 is inserted through the horizontal through holes; the second The side plate 3 is slidably connected to the platform base 1 and is arranged on the side opposite to the position of the first side plate. The second side plate 3 is provided with a plurality of evenly distributed horizontal through holes. The second horizontal pressure head 31 is inserted into the horizontal through hole; the upper top plate 4 is sleeved on the upper ends of the first side plate 2 and the second side plate 3, and the upper to...

Embodiment 2

[0034] Such as figure 1 As shown, the present invention provides a multi-scale similar simulation test platform for simulating the collapse of coal mine overburden, including a platform base 1, a first side plate 2, a second side plate 3 and an upper roof 4, and the first side plate 2 Fixedly connected to one side of the platform base 1, the first side plate 2 is provided with a plurality of evenly distributed horizontal through holes, and the first horizontal pressure head 21 is inserted through the horizontal through holes; the second The side plate 3 is slidably connected to the platform base 1 and is arranged on the side opposite to the position of the first side plate. The second side plate 3 is provided with a plurality of evenly distributed horizontal through holes. The second horizontal pressure head 31 is inserted into the horizontal through hole; the upper top plate 4 is sleeved on the upper ends of the first side plate 2 and the second side plate 3, and the upper to...

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Abstract

The invention relates to a multi-scale analog simulation test platform for simulating collapse of coal covering rock. The multi-scale analog simulation test platform comprises a platform base, a first lateral plate, a second lateral plate and upper top plates, wherein the first lateral plate is fixedly jointed on one side of the platform base; a plurality of uniformly distributed first horizontal pressure heads are arranged on the first lateral plate; the second lateral plate is in sliding connection with one side, opposite to the first lateral plate, of the platform base; a plurality of uniformly distributed second horizontal pressure heads are arranged on the second lateral plate; the upper top plates sleeve the upper ends of the first lateral plate and the second lateral plate; and a plurality of uniformly distributed vertical pressure heads are arranged on the upper top plates. The first lateral plate and the second lateral plate with horizontal loading pressure heads are designed on the multi-scale analog simulation test platform provided by the invention, so that zero gap on left and right sides of the test platform is realized and the granular materials, such as, sandy soil, and the like, can be used for constructing a similar model. Besides, the second lateral plate of the multi-scale analog simulation test platform provided by the invention can horizontally slide and the upper top plates can vertically slide, so that the establishment of multi-scale similarity model can be realized.

Description

technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a multi-scale similar simulation test platform for simulating the collapse of overlying rock in coal mines. Background technique [0002] The similar simulation test can complete the research on the laboratory-scale roadway (or tunnel) deformation and failure mechanism, rock layer migration characteristics, and original rock stress detection in geotechnical engineering and mining engineering. At present, similar simulation test platforms in China have the following characteristics and disadvantages: [0003] 1. A variety of similar model materials can be used, but the size of the test platform is fixed, and the establishment of multi-scale models and the application of horizontal loads cannot be realized; [0004] 2. The horizontal load can be applied, but the test platform is relatively open, and only prefabricated gypsum boards can be used as the test material, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 王宏伟姜耀东林志男邓代新
Owner CHINA UNIV OF MINING & TECH (BEIJING)