以三交河煤矿2~(-1)煤、2~(-2)煤近距离煤层开采为例,通过分析影响2~(-2)煤工作面开采的充水水源、充水通道等充水因素,采用水均衡法预测工作面涌水量,指出了近距离煤层开采下层煤工作面老空水为水害防治工作的重点,针对性地提出了井上下综合水害防治措施。 Taking the mining of 2 ~ (-1) coal and 2 ~ (-2) coal near distance in Sanjiaohe coal mine as an example, by analyzing the water-filled water sources and water-filled channels which influence the mining of 2 ~ (-2) Factor, the water balance method was used to predict the inflow of water in the working face. The point was pointed out that the old empty water in the lower coal face of the close distance coal seam was the focus of prevention and control of water damage, and a comprehensive prevention and control measure of well water damage was pointed out.