针对白集煤矿回采巷道底臌的原因,通过观测试验,分析了底板锚固对巷道顶底移近速度、巷道顶底移近量、巷道底臌量和顶沉量及对巷道两邦挤出量的影响,试验结果表明采用木锚杆灌浆技术防治回采巷道底臌,技术简单可行,经济效益明显。 Aiming at the reason of mine roadway bottom in Baimei coal mine, through the observation and test, the approach speed of floor anchorage to the top and bottom of the roadway, the amount of top and bottom movement of the roadway, the amount of bottom and top of the roadway, The results show that using wood grouting technology to prevent and control the bottom of mining roadway, the technology is simple and feasible with obvious economic benefits.