综采工作面末采阶段来压规律与顶板控制技术

Pressure rule and roof control technology of fully mechanized mining face at the end of the mining face

为分析综采工作面末采阶段矿压的情况,使得设施可以及时回撤,用理论分析和实际相联系的方式,探究工作面进度对来压特点的影响,明确适当等压位置。工作面推进的加快可直接影响来压步距,并且来压的时间长度也显著的增加。使用停采等压技术能够高效的控制来压位置,使用补强支护和顶板控制方式能够确保回撤退道的稳固性。

For the analysis of the underground pressure laws of fully mechanized working face in end-mining stage, such that facilities can be timely retracement, Using the method of theoretical analysis and actual application, to explore the effect of the mining velocity on the underground pressure characteristics to clear appropriate yielding position. The increasing mining speed of the working face can directly affected on the pressure step distance, and the time of the underground pressure is also increased significantly. Use waiting pressure technique can efficiently control to pressure position, the use of reinforcing support and roof control method can ensure the stability of recovery roadway.