Geomechanics test platform for water invasion regularity of mine

A technology of geomechanics and test platform, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., and can solve the problems that cannot reflect the characteristics of confined water, cannot reflect the performance of water seepage and scour, and the boundary conditions are difficult to meet And other issues

Inactive Publication Date: 2009-11-11
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

[0004] The model test basically adopts the plane stress model, which is not only difficult to satisfy the boundary conditions, but also uses other forces instead when simulating water pressure, which cannot reflect the characteristics of confined water, nor can it reflect the seepage and scour performance of water

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  • Geomechanics test platform for water invasion regularity of mine
  • Geomechanics test platform for water invasion regularity of mine
  • Geomechanics test platform for water invasion regularity of mine

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Embodiment Construction

[0014] The mine water inrush law geomechanics test platform of the present invention, its preferred specific implementation is as follows figure 1 , figure 2 As shown, it includes a box 2 for placing experimental materials.

[0015] According to needs, it can also include a base 1, the box body 2 is arranged on the base 1, and the base is provided with a reaction force frame 3, and the reaction force frame 3 can be made of I-beam 9, connecting bolts 10 and the like. A jack 4 is provided on the top beam of the reaction frame 3 , and the jack 4 can pressurize the experimental materials in the box body 2 . During the specific experiment process, whether or not to pressurize, and how much to pressurize, are determined according to the requirements of the experiment.

[0016] Such as image 3 As shown, the bottom of the box body 2 is provided with a plurality of water inlets 11, and the water inlets 11 are connected with the water pressure control system 5 through the water inl...

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Abstract

The invention discloses a geomechanics test platform for the water invasion regularity of a mine, which comprises a base, a box body, a reaction frame, a pressurized jack, a hydraulic control system and a data acquisition system and the like. When simulating the water invasion of the mine, test material is paved in the box body according to a calculated similarity ratio; an electrode, a stress sensor and a pore water pressure sensor are paved on a coal seam bottom plate by layers; and a data cable is led out from a pore preserved on a side surface. By filling water into the paved test material through the bottom plate of the box body, when the water in an aquifer is saturated, a pore preserved for coal mining in the front of the box body is opened for excavation, simultaneously, the hydraulic control system continue to fill water according to the pre-calculated water pressure, and the data acquisition system is started to record the test data until water invasion occurs at the bottom plate, and then excavation is stopped and the test is ended. The system structure is simple, can effectively simulate the water invasion regularity of the mine, and solves the problems that the indoor test can not simulate the role of seepage and erosion of confined water.

Description

technical field [0001] The invention relates to a mine water inrush law experiment device, in particular to a mine water inrush law geomechanics test platform. Background technique [0002] Due to the particularity of mine water inrush, it is impossible for people to observe the destruction process of water inrush on site. In the prior art, similar water inrush simulation tests are generally carried out in a laboratory. [0003] There are at least the following disadvantages in the above-mentioned prior art: [0004] The model test basically adopts the plane stress model, which is not only difficult to meet the boundary conditions, but also uses other forces instead when simulating water pressure, which cannot reflect the characteristics of confined water, nor can it reflect the seepage and scour performance of water. Contents of the invention [0005] The object of the present invention is to provide a geomechanical test platform for mine water inrush law, which can mon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01D21/02
Inventor 王家臣许延春李振华杨胜利徐高明李见波
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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