基于切顶卸压法的巷道底鼓防治技术

Preventing and Controlling Technology of Floor Heave Based on Roof Cutting and Pressure Releasing in Coal Mine Roadway

超前压力引起的回采巷道底鼓灾害严重阻碍煤矿的安全高效生产,将沿空留巷的切顶泄压技术用于治理回采巷道底鼓,并通过钻孔窥视和位移监测手段分析得出结论:切顶泄压技术能够有效遏制回采巷道的底鼓,经过切顶的巷道底鼓增速较慢,且底鼓量明显减少,不仅达到了治理底鼓的目的,还具有经济、高效、施工方便简单的特点,值得借鉴。

Roadway floor heave disasters caused by advanced pressure in fully-mechanized face seriously obstruct the safe and ef-ficient production of coal mines. We use technology of roof cutting and pressure releasing for the serious phenomenon of roadwayfloor heave, and use the drilling peep and displacement monitoring means to evaluate the control effect. The results show that, thetechnology of roof cutting and pressure releasing effectively control roadway floor heave; by roof cutting, the floor heave increasesslowly, and the amount of floor heave is much smaller, which not only achieves the purpose of control roadway floor heave, but al-so has economic, efficient and convenient features. This method is worth learning.