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库兹巴斯和顿巴斯煤田使用水枪采煤的经验指出,在水力采煤矿井中,如果使用工作压力9～12MPa、水流量150～350m~3/h,则可将水采的有效范围扩展到普氏系数1～1.2硬度的煤层中。按着全苏水力采煤科学研究设计院(以下简称全苏水采科研院)、А.А.斯科钦斯基矿业研究院和乌克兰水力采煤科学研究设计院的研究证实,为了提高水力回采
Kuzbass and Donbass Coalfield experience using water gun coal mining points out that in the hydraulic coal mining, if the working pressure of 9 ~ 12MPa, water flow 150 ~ 350m ~ 3 / h, the available water mining effective range Expanded to a Platts coefficient of 1 ~ 1.2 hardness in the coal seam. According to the Quan Su hydraulic coal mining Research Institute of Science and Technology (hereinafter referred to as Su Su mining Research Institute), А.А. Schokinsky Mining Research Institute and the Ukrainian Institute of Hydraulic Coal Research and Design confirmed that in order to improve the hydraulic recovery