贵州松河矿井“三保二”开采系统科学性分析

Scientific Analysis on “Three Guaranteed Two” Mining System of Guizhou Songhe Mine

科学合理的开采系统对煤矿建设和生产至关重要,贵州松河矿井地质条件复杂,灾害危险性大,为保证矿井投产后能长期保持稳产和正常接替,矿井采用"三保二"方式即采用三套巷道系统来保证两个采区、两个采面的抽、掘、采平衡。"三保二"开采系统的科学性在于确保矿井煤炭生产更灵活、可靠,巷道掘进和瓦斯治理有更大的空间、更充裕的时间,提高了矿井建设、生产的安全性和抗风险能力。

A scientific and rational mining system would be a critical important to the mine construction and production. The geological condition of Guizhou Songhe mine was complicated and the disaster danger was high. In order to ensure the mine could keep stable production and normal replacement operation in a long term after the mine was in production, a ＂three guaranteed two＂ mining node and a three gateway system were applied to ensure the gas drainage, gateway driving and coal mining balances of the two mining blocks and two coal mining faces. The science of the ＂three guaranteed two＂ mining system was to ensure more flexible and reliable coal production of the mine, to ensure more space and more sufficient time of the gas control and to improve the safety of the mine construction and production and the risk resistance capacity.