高压注水防治冲击地压的数值模拟
Numerical Simulation of Using High Pressure Water Injection to Control Rockburst
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摘要: 为了研究高压注水处理顶板的防冲效果,采用RFPA2D软件对高压注水前后上覆岩层冒落情况以及对采场来压的影响进行模拟。研究结果表明高压注水后,工作面煤壁变软,煤体松动,煤体压力减少,矿压显现程度降低,煤体能量得到了释放,降低了冲击地压发生的危险性,使得后期的采掘工作得以顺利的进行,同时保证了全矿井的安全生产。Abstract: In order to study the effect of using high pressure water injection to control roof rockburst, RFPA2D software is used to simulate caving situation of the overburden and the impact of stope pressure before and after the high-pressure water injection. The results show that coal wall becomes soft, coal is loose, coal pressure is reduced, the strata behavior is lower and coal energy has been released after the high pressure water injection, which reduces the risk of rock burst, makes the extraction smoothly and ensures the safe production of the whole mine.
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