The latest development of the Qixia gold mine explosion accident in Shandong: No. 10 drill pilot hole has been hit to the predetermined position
The reporter learned from the rescue site today (January 21) that the No. 10 drilling rig started working at 15:30 on the 20th, and at around 9:30 on the 21st, the pilot hole had been drilled to the predetermined position, 18 meters from the ground.
After the pilot hole is sheathed and reinforced, the 711 mm drill bit will continue to drill.
(CCTV reporter Zhang Ming, Li Yuguang, Li Bingchan, Li Jinlin and Zhang Peng)