章村煤矿三井为我局带奥灰水压试采下组煤的矿井,主要开采九号煤,七、八号煤局部可采(图1)。自1982年至今已采完五个下组煤工作面,安全采出煤炭50余万吨,未遇奥灰突水。通过生产实践,我们对井田奥灰水文地质条件认识不断深化,逐步摸索出治理奥灰水的经验和行之有效的工作方法,概括为“查清条件、以防为主、辅以疏降、带压开采”十六个字。 Zhangcun Coal Mine Mitsui for the Bureau of Ordovician gray pressure test coal mining group, the main exploitation of the 9th coal, seven, eight coal locally recoverable (Figure 1). Since 1982, five lower coal working faces have been taken and more than 500,000 tons of coal have been safely harvested. Through the practice of production, we deepened our understanding of the hydrogeological conditions of Ordovician ash wells and gradually found out the experience in controlling Ordovician gray water and the effective working methods. It is summarized as “to find out the conditions, With pressure mining ”sixteen words.