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针对单一、低透气性突出煤层消突困难、煤巷掘进速度低的问题,提出了多点控制水力压裂快速消突方法。以鹤壁六矿为试验矿井,通过理论分析多点控制水力压裂煤层破裂过程,结合适用于鹤壁六矿瓦斯地质条件的RFPA~(ZD)-Integrated软件进行水力压裂数值模拟,研究了多点控制水力压裂增透快速消突机理,确定了适合六矿2123回风巷的压裂设备型号及压裂工艺参数。结果表明,多点控制水力压裂效果要优于常规水力压裂,试验工作面实施控制压裂措施后,瓦斯抽采浓度、瓦斯流量和掘进速度均有大幅提高,达到了快速消突的目的。
In view of the difficulty of eliminating sudden protrusion of single and low permeability coal seam and the low speed of coal roadway driving, a multi-point control method of sudden elimination of hydraulic fracturing is proposed. Taking Hebi No.6 mine as the experimental mine, the fracturing process of hydraulic fracturing coal seam was controlled by multi-point theory and the hydraulic fracturing numerical simulation was carried out with RFPA ~ (ZD) -Integrated software suitable for the gas geological conditions in No.6 Mine of Hebi. Controlled hydraulic fracturing and osmosis rapid elimination mechanism, to determine the suitable sixty mine 2123 return airway fracturing equipment model and fracturing parameters. The results show that the multi-point control hydraulic fracturing effect is superior to the conventional hydraulic fracturing. After the pilot fracturing measures are implemented, the gas drainage density, gas flow rate and tunneling speed are greatly increased, achieving the purpose of rapid elimination .