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Stope mine pressing three-dimensional physical simulation test stand

A technology for simulating test benches and three-dimensional physics, applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as inability to observe model changes in depth, inability to simulate coal seam mining tests with large dip angles to the maximum extent, and inability to simulate deep coal seam mining, etc.

Inactive Publication Date: 2009-03-04
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One is that it cannot maximize the simulation of the coal seam mining test with a large dip angle
[0008] Second, the observation of the deformation of the model body only stays on the surface of the model, and cannot deeply observe the changes inside the model
[0009] Third, it is impossible to simulate the mining of deep coal seams

Method used

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  • Stope mine pressing three-dimensional physical simulation test stand
  • Stope mine pressing three-dimensional physical simulation test stand
  • Stope mine pressing three-dimensional physical simulation test stand

Examples

Experimental program
Comparison scheme
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Embodiment approach 1

[0034] Embodiment 1, see figure 1 , figure 2 , image 3 and Figure 4 , a three-dimensional physical simulation test bed for mine pressure in a stope, including a frame-type model table for carrying a model, the frame-type model table includes an upper opening 1, and side wall panels 2, 3 located at the front, rear, left and right , 4, 5, and base plate 6. The above-mentioned side wall panels 2, 3, 4, and 5 are formed by splicing a plurality of slats sequentially from top to bottom, and the slats and the corresponding reinforcement parts are detachably connected. The corresponding slats can be disassembled on the corresponding side plates; the mining opening is set on the base plate 6, and a detachable sealing slat 7 is provided at the mining opening. When it is necessary to simulate the coal mining test of the bottom plate, the sealing slat 7 to proceed. A high-strength toughened glass area is set on the side wall panel 2 at the front to form an observation window 8 . ...

Embodiment approach 2

[0037] In Embodiment 2, the frame-type model table does not need to be designed into two parts, the front half model table A and the rear half model table B described in the above method. The other parts may take the same technical measures as the corresponding parts in Embodiment 1.

[0038] The control system, testing system and hydraulic system related to the present invention should be able to be designed by skilled personnel under the guidance of the above spirit and in combination with the specific application of the present invention. For example, digital instruments can be used in the control system to measure and control the pressure; the DH3815 static strain measurement system produced by Jiangsu Donghua Testing Technology Co., Ltd. can be used in the test system, which can perform multi-point high-speed roving detection of physical quantities such as pressure and displacement. The resolution of the voltage signal whose output voltage is less than 20mv can reach 1 / 10...

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Abstract

The invention discloses an underground pressure three dimensional physical simulation test platform, which is characterized in that a frame type model platform used for bearing a model, a swing structure used for causing the frame type model platform to incline in a whole in a range of set maximum inclination angle, and a loading device used for pressing on the model in the direction of the opening of the frame type model platform are included, wherein, the frame type model platform comprises an upper opening, side wall plates arranged at the front, at the back, at the left and at the right, as well as a base plate; the base plate is provided with at least a mining hole, and the mining hole is provided with a demountable sealing lath. The invention can simulate a big inclination angle coal seam mining experiment and simulate a coal seam deep mining experiment, and meanwhile, can also simulate a bottom plate coal mining experiment, simulate a middle coal mining experiment, and the like.

Description

technical field [0001] The invention relates to a test stand used in a mine pressure laboratory in a stope. Background technique [0002] Similar material simulation research is one of the research methods of mine pressure in the mining industry at present. It is a new field in mine research in the past hundred years. Similar simulation is being improved and developed through continuous practice and research. Similarity research is based on the similarity theory proposed by former Soviet scholar Znetsov, and based on this, a set of research methods from physical test, mechanical test, model test to engineering practice is formed, which is used for the determination of mine pressure in the laboratory. Observing mine pressure in China provides a new way. [0003] Similarity simulation can be divided into two types. One is the physical model method in the laboratory, which is a method of using real objects, collectively referred to as similar simulation. First, measure the p...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01L1/00
Inventor 郭惟嘉张新国范炜琳尹立明张文泉
Owner SHANDONG UNIV OF SCI & TECH
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