A method for early warning of rock burst based on dynamic and static load disturbance superposition
A rockburst, dynamic and static technology, applied in earth-moving drilling, mining equipment, mining devices, etc., can solve the problems of limited effective early warning range, prone to rockburst, unreasonable excavation layout, etc., and achieve important practical value and reality. Meaningful, time-sensitive, and wide-ranging effects
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[0050] A rockburst early warning method based on the superposition of dynamic and static load disturbances. The method selects the coal mine underground working face as the implementation object, collects microseismic space, time, energy characteristics and shock wave CT wave velocity and other parameters in the time window and performs real-time processing. Include the following steps:
[0051] Step 1: Divide the underground working face to be evaluated into reference areas according to geological structure and mining layout Figure 1~2 See Table 1 for the division of different types of induced regions.
[0052] Table 1 Division of different types of induced earthquake areas
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[0055] Step 2: According to the induced area divided in step 1, all types of microseismic events in the early warning time window T are discriminated. For example, if the source center point of a certain microseismic event is located in the fault induced area, the type of micros...
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