一、传统技术采用机械旋转法能钻进盲竖井大约已有一百年历史。在此期间这种钻进技术实际上一成莫变,一直是由地面上的钻机驱动钻杆和钻头旋转,而岩渣则由正向或反向循环的压缩空气、泥浆或泡沫排出孔外。尽管钻头尺寸、钻孔深度和钻进速度同早期相比都有了很大增加, First, the traditional technology using mechanical rotation method can blind into the blind shaft about a hundred years of history. In the meantime, this drilling technique has been virtually unchanged. Drill rods and drills have been driven by on-the-ground rigs, and rock dust has been removed from the holes by compressed air, mud or foam circulating in the forward or reverse direction . Although the bit size, depth of drilling and drilling speed have greatly increased compared with the early,