A mine pressure simulation monitoring device for inclined longwall fully mechanized caving stope
A technology of fully mechanized roof caving and simulated monitoring, which is applied in surface mining, underground mining, special mining, etc., can solve problems such as real-time monitoring of roof separation and roof fall, etc., to improve monitoring accuracy and monitoring convenience, The effect of preventing instability and protecting personal and property safety
Active Publication Date: 2021-01-05
NORTH CHINA INST OF SCI & TECH
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Problems solved by technology
[0003] When adopting the mining method of inclined layering and longwall fully mechanized top coal caving, roof separation is one of the main forms of roadway surrounding rock change and damage. When the roof separation exceeds a certain range, if no measures are taken, it will often occur Roof fall and other vicious accidents have caused casualties and property losses. However, in the actual mining process, it is difficult to monitor the situation of roof separation in real time.
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[0026] see Figure 1-6 , in an embodiment of the present invention, a mine pressure simulation monitoring device for an inclined longwall fully mechanized caving stope, comprising a simulation box 1, a fixing frame 5 is fixedly installed on the top of the simulation box 1, and one end of the simulation box 1 A control box 3 is installed on the upper side of the bottom layer 2, a coal seam 10 is arranged on the top of the bottom layer 2, and a rock layer 4 is arranged on the top of the coal seam 10, and it is characterized in that a layer of mine rock is arranged on the top of the coal seam 10 close to the rock layer. Monitoring layer, the middle position of the inner bottom of the simulation box 1 is provided with a micro-shearer 11, and the inner bottom of the simulation box 1 is provided with a bottom layer 2 on both sides close to the micro-shearer 11, and the simulation The bottom end of the inside of the box 1 is located in the goaf of the micro-shearer 11, and a fully me...
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The invention relates to the technical field of coal mining simulation and discloses a mine pressure simulation monitoring device for an inclined long-wall fully mechanized caving top coal stope. According to the invention, a micro coal mining machine is used for mining, inclined long-wall fully mechanized top coal caving mining is carried out in cooperation with a fully mechanized caving hydraulic support, the simulation authenticity can be effectively improved, meanwhile, a mine pressure monitoring layer is used for monitoring the mine pressure, moreover, the mine pressure monitoring layer comprises a plurality of air cavity boards and a plurality of rigid connecting blocks, every two adjacent air cavity blocks are connected together through the corresponding rigid connecting block, a plurality of uniformly distributed pressure sensors for detecting the pressure borne by each air cavity block are arranged in each air cavity block, so that the monitoring precision and the monitoring convenience of mine pressure simulation of the stope can be improved, and the position coordinates of the pressure sensors are known, so that the position coordinates and the pressure values of the pressure sensors can be correspondingly monitored.
Description
technical field [0001] The invention relates to the technical field of coal mining simulation, in particular to a mine pressure simulation monitoring device for an inclined longwall fully mechanized top coal caving stope. Background technique [0002] In the process of coal mining, in order to improve the recovery rate of mine resources and solve the technical problems of coal seam mining, it is sometimes necessary to adopt the method of inclined layering and long-wall fully mechanized caving coal mining on the working face, which has superior technology and reasonable economy. The advantages. [0003] When adopting the mining method of inclined layering and longwall fully mechanized top coal caving, roof separation is one of the main forms of roadway surrounding rock change and damage. When the roof separation exceeds a certain range, if no measures are taken, it will often occur Roof fall and other vicious accidents have caused casualties and property losses. However, in ...
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IPC IPC(8): E21C41/18
CPCE21C41/18
Inventor 程志恒殷帅峰张梦来
Owner NORTH CHINA INST OF SCI & TECH