摘要
介绍了沿空深井托厚顶煤沿空顺槽失稳特征,分析了其失稳机制,提出了"内圈强支、中圈卸压、外圈承载"的协同治理思路,开发了卸压钻孔-锚固注浆的协同治理方法,并确定了合理的卸压钻孔参数和注浆参数。
This paper frst introduces the instability characteristics of the thick top-coal along the empty groove, then analyses its instability mechanism, after which it puts forward a collaborative governance concept, develops a pressure relief hole - grouting method of collaborative governance, and fnally determines the reasonable unloading drilling and grouting parameters.
出处
《山东煤炭科技》
2018年第1期1-2,7,共3页
Shandong Coal Science and Technology
关键词
沿空顺槽
失稳
治理
along the empty groove
instability
governance