Calculation and prediction method of maximum mine earthquake energy for fault-type mine earthquake in multi-layer key layer of coal mine
A technology of energy calculation and prediction method, applied in the direction of seismic survey, seismology, mining equipment, etc., can solve the problem of untargeted, inability to predict and predict mine earthquakes, and the energy and magnitude of mine earthquakes are not theoretically given. Calculation formula and other issues to achieve the effect of ensuring safe production
Active Publication Date: 2022-08-02
UNIV OF SCI & TECH BEIJING
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[0003] However, the management of coal mine earthquake disasters at the present stage needs further development and improvement. At present, the magnitude and energy of mining earthquake disaster accidents are generally obtained through monitoring instruments, and the calculation formulas for mining earthquake energy and magnitude have not been given theoretically. Therefore, mining earthquake disaster accidents can only occur "first", and "later" are received by monitoring instruments, so it is impossible to predict and forecast mine earthquakes, and mines can only take some "non-targeted and inefficient" earthquake prevention and disaster reduction measures
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[0045] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.
[0046] The invention provides a method for calculating and predicting the maximum mine earthquake energy of a multi-layer key layer of a coal mine fault type mine earthquake.
[0047] like figure 1 , figure 2 As shown, the method includes the following steps:
[0048] S1: Select no less than 3 boreholes near the coal mining face A, and determine the lithology of the overlying strata on the working face according to the display of the boreholes (the lithology is mainly to classify the overlying strata, for example, the overlying strata There can be fine sandstone, siltstone, coarse sandstone, etc. These rock formations correspond to different rock formation properties, such as color, structure, compressive strength, friction angle, et...
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The invention provides a method for calculating and predicting the maximum mine earthquake energy of a multi-layer key layer fault type in a coal mine, and belongs to the technical field of mine earthquake prediction in coal mines. The method firstly determines the overlying strata on the coal mining face according to the boreholes near the working face, and divides the key strata to determine the step distance and other parameters of the key stratum fracture; The energy is converted into the corresponding Richter scale, and the mine shock generated by the fracture of the largest main key layer is used as the maximum mine shock predicted in the production process of this working face, so as to guide the formulation of shock-proof and shock-absorbing measures in the actual production process of the mine. Realize the change from passive to active in preventing and controlling mine earthquake disasters. The method is efficient, economical, safe and targeted, and is suitable for mine shocks induced by multi-layer critical layer faults.
Description
technical field [0001] The invention relates to the technical field of mine earthquake prediction in coal mines, in particular to a method for calculating and predicting the maximum mine earthquake energy of a multi-layer key layer fault type mine earthquake in a coal mine. Background technique [0002] my country is a country seriously affected by mine earthquakes. In some mines, mine earthquakes have become one of the most important disasters, which not only hinders the production of mines, but also threatens the safety of life and property in mining areas. [0003] However, the management of mine earthquake disasters in coal mines still needs further development and improvement. At present, the magnitude and energy of mine earthquake disasters are generally obtained through monitoring instruments, and the calculation formula of mine earthquake energy and magnitude has not been theoretically given. , mine earthquake disasters can only occur "first", and "later" is received...
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IPC IPC(8): G01V1/00E21F17/00E21F17/18
CPCE21F17/00E21F17/18G01V1/01
Inventor 周超宋大钊何学秋姜福兴朱斯陶李振雷
Owner UNIV OF SCI & TECH BEIJING