摘要
张集煤矿利用-700 m水平大巷穿层定向放水技术解决复杂地质条件下探放水技术难题。采用先进的设备和技术措施对钻孔倾角和方位进行控制,成功地放出了张集煤矿7308老塘水,消除了水害隐患。
In this paper, we use - 700 m horizontal shaft penetrating directional dewatering technology to solve explore and dewatering technology in complicated geology condition of Zhangji coal mine. Adapting advanced equipments and the technique measures to control drill hole dip and direction, we succeeded in dewatering 7308 old pond waters of Zhangji coal mine and avoiding the water disaster.
出处
《煤炭技术》
CAS
北大核心
2010年第1期214-216,共3页
Coal Technology
关键词
定向钻孔
大倾角
高水压
放水
directional drilling
large dip
high water pressure
dewatering
