摘要
煤矿开采形成的“上两带”(垮落带和裂隙带),可沟通上覆含水层之间的水利联系,威胁矿井安全生产。基于此,对贾家沟煤矿地质条件进行分析研究,通过井下钻探后分段注水试验法,结合岩芯分析,实测确定煤层顶板上两带的高度,指导煤矿安全生产。
The"upper two zones"(collapse zone and fracture zone)formed by coal mining can communicate the hydraulic connection between the overlying aquifers and threaten the safety of mine production.Based on this,the geological conditions of the Jiajiagou coal mine were analyzed and studied.Through the segmented water injection test method after underground drilling,combined with rock core analysis,the height of the two zones on the coal seam roof was measured and determined to guide the safe production of the coal mine.
作者
刘晓明
Liu Xiaoming(Shanxi Coal Geology 114 Exploration Institute Co.,Ltd.,Changzhi Shanxi 046000)
出处
《山西化工》
2023年第4期143-146,158,共5页
Shanxi Chemical Industry
关键词
上两带
井下钻探
分段注水试验法
upper two belts
underground drilling
segmented water injection test method
