“Hello，Dispatcher，I am Meng Yonggang, deputy captain of the first comprehensive excavation team，20202 belt tunnel excavation working face has been penetrated。”1:00 am on December 12th，With the integrated anchor digging machine completing the last cutting operation in the 20202 belt conveyor lane，The dispatch and command center of Sunjiacha Longhua Mining Company received good news。
20202 working face is the first large mining height working face in Sunjiacha Longhua m88 bet Mine，The average m88 bet seam thickness is 6.8m，The total length of the working surface belt conveyor lane is 3965 meters，Alley High 4.8m，Lane width 6.2 meters。
Facing the tunnel roof, there is a lot of water，Direct bottom lithology is soft，Difficulty in moving equipment，Long material transportation line、Insufficient staff and other issues，Mine management personnel make judgments in advance，All departments actively coordinate and cooperate，Clear construction tasks，Focus on the key points、Conducted external research and internal discussions on difficult issues and possible risks and hazards，And proposed management、Technical solutions。
Under construction，m88 bet mine safety officers and safety management personnel keep an eye on the construction site，Strictly implement the standardized management system excavation standards，Comprehensive implementation of safety standards for working face penetrations，Follow the team leader and take command、Take initiative，Ensure that the construction of the working face proceeds in an orderly manner。
In the process of passing，Leadership、Team leader、Tile inspectors are keeping an eye on the scene，Report air volume and toxic and harmful gas conditions in a timely manner；After penetration，The wind surveyor adjusted the ventilation system in time，Ensure the safety, stability and reliability of the working surface ventilation system。
After 6 months of joint efforts from relevant m88 bet mine departments and all members of the comprehensive excavation team，Completed the penetration of long-distance working face to high standards，After the working face starts pushing and mining，Annual m88 bet output is nearly 8 million tons，will be responsible for the mine’s main production targets and continuing tasks next year。
It is reported，Belt conveyor tunnel excavation working face section 30 square meters，Strike length is nearly 4 kilometers，At the same time, it also refreshed many records such as the largest excavation section and the longest working face since the establishment of the mine。The penetration of this working face，It means that Sunjiacha Longhua m88 bet Mine has begun to meet the conditions to cancel night shift production at the allotment working face，It will create better working conditions for front-line district team employees；Due to the large thickness of the m88 bet seam，m88 bet quality will be further improved，Economic benefits are further highlighted；Also reduced the mining ratio，Creating favorable conditions for the continuation of mine production。(Wang Dongdong Ma Yun)