Coal rock deep potential measurement method
A measurement method and potential technology, which is applied in the field of geophysical parameter measurement of coal-rock dynamic disasters and mine safety monitoring, can solve the problems of inability to measure the deep potential of coal and rock, and achieve the effects of high degree of automation, strong practicability, and flexible monitoring areas
Active Publication Date: 2017-06-30
CHINA UNIV OF MINING & TECH
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[0004] Purpose of the invention: Aiming at the above prior art, to provide a method for measuring the deep potential of coal and rock, which is used for the measurement of the internal potential signal of coal and rock mass caused by coal and rock outburst, rock burst and other coal and rock dynamic disasters, and solves the existing problems The method can only measure the surface potential of coal rock mass, but not the technical problem of deep coal rock potential
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[0017] The present invention will be further explained below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, the present invention includes an electrode 1, a potential acquisition instrument 2 and a signal processing terminal host 3, the electrode 1 and the potential acquisition instrument 2 are connected with a signal transmission shielding wire, and the potential acquisition instrument 2 and the signal processing terminal host 3 are connected with a communication wire; The acquisition instrument 2 collects the potential signal measured by the electrode 1 in real time; the signal processing terminal host 3 analyzes and stores the potential signal collected by the potential acquisition instrument 2 in real time, and analyzes the stress state of the coal rock and its bulk stability according to the distribution characteristics of the internal potential signal of the coal rock.
[0019] The electrode 1 is a high-strength insulating tube 5 with ...
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The invention discloses a coal rock deep potential measurement method. Firstly electrodes 1 are distributed in drill holes; then the electrodes 1 and a potentiometer 2 are connected by using a signal transmission shielding line; then potential signals measured by the electrodes 1 are acquired in real time by using the potentiometer 2; and finally the potential signals acquired by the potentiometer 2 are analyzed and stored in real time by using a signal processing terminal host 3, and the stress state of the coal rock and the mass stability thereof are analyzed according to the potential signal distribution characteristics in the coal rock. The coal rock deep potential measurement method has the characteristics of being high in degree of automation, high in practicality, convenient to install, more rapid to operate and flexible in monitoring area so that the deformation and destroy situation of the coal rock mass of the measurement area can be truly reflected, and the technical support can be provided for forecasting research of coal rock dynamic disasters and geological disasters.
Description
technical field [0001] The invention relates to a method for measuring the deep potential of coal rocks, belonging to the fields of geophysical parameter measurement of coal rock dynamic disasters and mine safety monitoring. Background technique [0002] With the extension of coal mining depth and the increase of mining intensity, coal and rock dynamic disasters such as coal and gas outbursts and rock bursts have become increasingly serious, posing a great threat to the safe production of coal mines. Therefore, it is particularly important for the prevention and control of coal-rock dynamic disasters to effectively identify and warn and take preventive measures in time before the dynamic disasters occur. In recent years, China University of Mining and Technology has conducted a large number of tests and researches on the deformation and fracture process of coal and rock mass under different loading methods, and found that when coal and rock mass is loaded or deformed and cra...
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IPC IPC(8): G01V3/00
CPCG01V3/00
Inventor 李忠辉王恩元程富起李学龙魏洋殷山孔艳慧刘帅杰
Owner CHINA UNIV OF MINING & TECH