大采高顶板预裂技术研究

Roof Pre-splitting Technology of Large-mining-height Working Face

根据大采高工作面特点,提出了顶板预裂技术,减弱了顶板强度,合理控制来压步距,为大采高开采技术提供理论依据和技术经验,对提升大采高开采技术水准,保持矿区煤炭产量持续增长具有重要意义。

According to the features of large-mining-height working face, mechanical charac- teristics of rock, and the theory of mining pressure, the paper proposes a roof pre-splitting tech- nology to reduce roof strength and control weighting interval. The study could provide theoretical foundation and technical experience for the large-mining-height mining technology, which is im- portant to increase technical standards and achieve sustainable growth of coal production.