摘要
通过综合应用空气(空气压缩机)及Ф127 mm钻杆+Ф215 mm空气锤钻进和泥浆+Ф215mm三牙轮钻头钻进的施工工艺,在布尔台煤矿一盘区采空区施工了3个水位观测孔,获得了一些施工经验和教训。
By using the integrated construction technology of air （by air compressor）,Ф127 mm drill pipe and Ф215 mm air hammer,and mud and Ф215 mm tricone bit,three water level observation holes were constructed in the goaf of first panel of Buertai coal mine,and some construction experience and lessons were gained.
出处
《陕西煤炭》
2017年第B08期50-52,共3页
Shaanxi Coal
