摘要
为了缓解采掘接替日益紧张的问题,以疏放对工作面掘进期间产生威胁的上部采空区积水为研究对象,东庞矿首次采用定向钻进技术超前疏放有动水补给的采空区积水,通过及时调整钻孔轨迹,确保钻孔始终在较为坚硬的砂岩层位钻进,避免出现塌孔、偏斜较大等情况,提高了钻进效率和成功率,消除了水害隐患,缩短工作面圈定时间。
In order to alleviate the increasingly tense problem of mining replacement,the drainage of the upper goaf accumulated water which was a threat to the excavation of the working face was taken as the research object,the directional drilling technology was used to drain the goaf accumulated water with dynamic water supply in advance for the first time in Dongpang Mine.By adjusting the borehole trajectory in time,it was ensured that the borehole was always drilled in the hard sandstone layer,so as to avoid the collapse of the hole and the large deviation.The drilling efficiency and success rate were improved,the hidden danger of water disaster was eliminated,and the delineation time of the working face was shortened.
作者
刘志磊
Liu Zhilei(Dongpang Mine,Jizhong Energy Co.,Ltd.,Xingtai 054201,China)
出处
《煤炭与化工》
2025年第6期66-70,共5页
Coal and Chemical Industry
关键词
定向钻进技术
采空区
动水
超前疏放
directional drilling technology
goaf
dynamic water
advanced drainage
