Roof cutting pressure relief-support energy absorption control method for deep mine roadway
A technology of roof cutting and pressure relief, deep well roadway, applied in earthwork drilling, instruments, surface mining, etc. and other problems, to achieve the effect of preventing and avoiding rock burst
Active Publication Date: 2022-07-15
CHINA UNIV OF MINING & TECH (BEIJING) +1
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Problems solved by technology
[0006] (1) The above-mentioned rock burst prevention and control technology is mainly realized through single surrounding rock pressure relief and support energy absorption, and the prevention and control of rock burst is not realized by combining the two prevention methods
[0007] (2) The above energy-absorbing support technology is mainly designed based on the relationship between the mechanical properties of the support components and the strength of the roadway surrounding rock, without considering the design based on the internal elastic energy of the surrounding rock, and it is difficult to fundamentally prevent rock burst
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[0031] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0032] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / or combinations thereof.
[0033] For the convenience of description, if the words "up", "down", "left" and "right" appear i...
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The invention relates to a control method for roof cutting pressure relief-support energy absorption of deep well roadways, belongs to the technical field of coal mining safety control, solves the problem that disasters cannot be effectively prevented fundamentally, and includes the following steps: establishing a roof cutting pressure relief-support For the mechanical analysis model of energy-absorbing rock formation, the top-cut-filling parameters are obtained according to the mechanical analysis model of pressure-relief-support energy-absorbing rock layer; The first support parameters are obtained from the energy-absorbing performance parameters of the parts, and the second support parameters are obtained according to the total support strength required per unit area of the roadway and the mechanical performance parameters of the energy-absorbing support parts; the first support parameters and the second support parameters are compared and selected. Support parameters, determine construction support parameters, and perform on-site construction of roof cutting and energy-absorbing supports according to roof cutting-filling parameters and construction support parameters. By adopting the method of the invention, the effective prevention and control of disasters such as roof fall and ground pressure impact can be realized.
Description
technical field [0001] The invention relates to the technical field of coal mining safety control, in particular to a method for controlling the top-cutting pressure relief-support energy absorption of deep well roadways. Background technique [0002] The statements herein merely provide background related to the present invention and do not necessarily constitute prior art. [0003] As one of the most important energy sources in the world, coal mining intensity and demand have increased significantly in recent years. However, with the depletion of shallow coal resources, coal mining gradually develops into deep areas, and dynamic disasters such as rock bursts are increasing, which seriously threatens the safety of coal mining. The rock burst in coal mines is not only harmful and wide-ranging, but also the root cause of major accidents in other coal mines. The occurrence of rock burst may induce major disasters such as abnormal gas gushing and gas explosion. Therefore, the...
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IPC IPC(8): G06F30/13G06F30/20E21C41/18E21F15/00G06F119/14
CPCG06F30/13G06F30/20E21C41/18E21D20/00E21F15/00G06F2119/14
Inventor 王琦高红科江贝薛浩杰王帅
Owner CHINA UNIV OF MINING & TECH (BEIJING)