Control Method of Rock Burst in Deep Mine
A technology of ground pressure and control method, which is applied in mining equipment, earth-moving drilling, mining equipment, etc., can solve problems such as the overlying roof is not easy to fully collapse, break up and fill, and the joint control mechanism is not scientifically analyzed, so as to achieve the construction operation. The effect of convenient and broad promotion and application value
Active Publication Date: 2022-06-24
CHINA UNIV OF MINING & TECH (BEIJING) +1
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Problems solved by technology
[0003] At present, the conventional rock burst prevention and control technology is mainly implemented in local areas where the risk of rock burst is predicted, and the method of prevention and control of rock burst is single and passive. Methods such as transferring rock mass stress or releasing accumulated strain energy, such as deep hole blasting, fractured roof or floor, etc., fail to cut off the stress transmission of the rock formation as a whole, and the overlying roof is not easy to fully collapse and fill after mining; The combination control method of rock pressure hazard level design, that is, the joint control mechanism of preventing and controlling rock burst after the combination of different methods is not scientifically analyzed
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[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
[0025] The terms "a", "an", "the", "said" are used to indicate the presence of one or more elements / components / etc; the terms "including" and "having" are used to indicate open-ended inclusive means and means that additional elements / components / etc may be present in addition to the listed elements / components / etc.
[0026] like Figure 1 to Figure 3 shown, figure 1 A flow chart of a method for controlling rock burst in a ...
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The invention discloses a method for controlling rock burst in deep mines. According to the field measurement and experimental results, the method scientifically judges the risk level of rock burst in different areas of deep mines, and can be divided into weak rock burst, medium rock burst, strong rock burst and extremely strong rock burst. Based on different rockburst risk levels, the method of roof cut pressure relief, swell filling method, and energy-absorbing support method is adopted for combined prevention and control. When the rockburst level is strong or extremely strong, the roof collapse Inject artificial filling materials on the basis of crushing and expansion filling to strengthen the control effect, conduct quantitative evaluation on the control effect of rock burst through on-site monitoring, and feedback and optimize the anti-scour control design scheme. The invention provides a method for preventing and controlling the source of rock burst, which is of great significance for ensuring safe mining of deep wells.
Description
technical field [0001] The invention relates to the technical field of coal mining, in particular to a method for controlling rock burst pressure in a deep mine. Background technique [0002] Rock burst is a common rock dynamic failure phenomenon in the field of underground engineering and mining engineering. Compared with the shallow rock burst, the influencing factors are single and mainly affected by the hard roof. The deep mine has a large burial depth, complex geological conditions and various influencing factors. The deep rock burst is characterized by easy occurrence and a wide range of occurrence locations. , The occurrence time span is long, and the pressure relief requirements are prominent. [0003] At present, conventional rockburst prevention techniques are mainly implemented in local areas where rockburst risk is predicted, and the methods for prevention and control of rockburst are passive. Transferring the stress of the rock mass or releasing the accumulate...
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IPC IPC(8): E21F17/00E21F17/18
CPCE21F17/00E21F17/18
Inventor 王琦刘寄婷高红科江贝王帅
Owner CHINA UNIV OF MINING & TECH (BEIJING)