摘要
针对神东矿区工作面末采段容易发生压架事故的问题,结合矿压规律、覆岩运动特征及理论计算,就停采调速让压、强制放顶减压、调节采高缓冲降压3种措施的机理与运用进行了研究.结果表明,在调整采高前提下通过停采、调速让压、强制放顶措施的单一或者综合运用均能实现定点定位来压与围岩的提前卸压,保证贯通回撤时顶板不来压.此研究结论很好地指导了霍洛湾矿22202面的末采顶板管理工作,实现了安全高效生产与回撤,为类似条件矿井末采提供参考.
According to the problem of support crushing accidents at the ending stage of fully - mechanized face in Shendong mining area, strata behavior regularity and overburden strata movement and theoretical calculation are adopted to study the principle and the application of stopping mining and speed control for yield, forced caving for reducing pressure, and adjusting mining height for Buffer Depressurization. Results show that under the premise of adjusting mining height, speed control and forced caving can achieve the pressure coming from the fixed point and position and the surrounding rock depressurizing in advance, no matter the above - mentioned single method or comprehensive methods are taken. It can ensure that the roof pressure of the well does not retreat. It can guide the roof control at the ending stage of the NO. 22202 fully - mechanized face in Huoluowan coal mine mining well, which can realize the safe and the efficient production and removing, and provide references for the similar conditions at the ending stage.
出处
《矿业工程研究》
2014年第1期9-12,共4页
Mineral Engineering Research
关键词
大采高
末采
矿压控制
让压开采
强制放顶
large mining height
end- mining
mine pressure control
yield mining
forced caving
