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正如实践和研究结果证明的那样,与采矿工程相联系的矿体状态的变化是跳跃式地以脉冲形式突然发生的.工作面顶板冒落、裂隙的扩大和很多其他现象都可作为这样的例证.不同的脉冲数值及其作用时间,决定着矿压显现的不同特征.开采突出危险煤层时,在一定条件下,脉冲有可能引起煤与瓦斯突出.已讨论过动力现象波动机理假说,对煤的波动作用影响也做了一些研究,以便弄清波动作用的积极作用.著作[1]指出,在地震效应作用下,压出带的范围扩大了,并且,实际上消除了围岩接近的滞后现象.文献[2]的作者认为突出是一种振动——波动过程.他
As proven by practice and research, the state of the ore body associated with mining engineering is abruptly abruptly pulsed, with roof caving, the expansion of fractures, and many other phenomena as examples Different pulse numbers and their durations determine the different characteristics of the occurrence of mine pressure.When mining dangerous coal seams, the pulsation may cause the outburst of coal and gas under certain conditions.We discussed the hypothesis of fluctuating mechanism of dynamic phenomena, Has also done some research in order to find out the positive effects of wave motion.It is pointed out by the work [1] that the scope of the outburst zone is widened by the seismic effect, and the hysteresis of the surrounding rock is virtually eliminated Phenomenon [2] The authors consider that highlighting is a vibration-wave process