Recently，With bursts of roaring sounds，Hanjiawan Coal Company underground 213109 cut hole and half coal and rock excavation project achieves comprehensive and accurate penetration，Only took 13 days，Created another record for the fastest excavation speed。
"Cut the eye and it will go through？”This is the incredible reaction of most people after receiving the news。Chan Liangliang, the captain of the continuous mining team, said confidently: "The last full-section penetration took 20 days，213109 eye removal only took 13 days，This is the butterfly change of tunneling speed。”
The beginning of the project，Face the broken floor of 213109 excavation tunnel、There are cracks in the roof and water is pouring、The gangue is mixed with pyrite and other harsh geological conditions，The cadres and workers of the continuous mining team are working hard，Shouted the strongest slogan "The pioneer team of digging is made by hard work"。
"The skilled work of the team must be used on the edge，Wooden pillars must be prepared in advance，Drainage facilities must be in place..." The continuous mining team held an excavation deployment meeting in a timely manner，Summary of the unfavorable factors encountered in the past tunnel excavation，Overall coordination，Consider everything，Detailed division of work tasks，Fixed the burden of managers。
Organize the formulation of the "Management Measures for Strengthening the Foundation M88 appand Improving the Quality of Cut-Eye Working Faces" and the "Quality Acceptance and Assessment Methods for Team Projects"，Decompose production tasks to each team，Implement target assessment responsibility system。Within the control distance range，The team will be rewarded with 200 work points for every additional 1m，A good momentum of “catching up and surpassing” has been formed among the team，Greatly stimulated the subjective initiative of cadres and workers。
How to achieve speed？Equipment and facilities are the key。“Continuous mining machine + shuttle car + double-arm anchor drill + crawler crusher” excavation elements are indispensable。By installing the belt conveyor in the cut hole，The shuttle car’s round-trip coal transportation efficiency increased by 30%，The excavation cycle progress has increased by 1 than before.5 times。
The original PDC drill bit is in the process of drilling holes for roof support，Frequent drill stuck、Blocked eyes and other phenomena，Time-consuming and laborious。Dong Wenchao, the support worker of the second shift of production, showed his wonderful ideas，Summary of support experience，The reason is found to be the size of the drill bit outlet，Boldly propose a plan to replace PDC drill bits with coal drill bits，Perfectly solves the problem of support constraints，Won the praise of cadres and workers。
How to achieve from "fast" to "stable"？Real tricks for risk management。Comprehensive risk assessment of the tasks on duty will be conducted before each shift，Propose preventive m88 casinomeasures，Enable employees to take occupational risks and measures into their minds and hearts。Actively organize and carry out "Accident Case Comments" activities，Encourage employees to dare to "take a step forward" and "open up their voices"，From case summary to job extension，Speak out your confidence、Tell me the taste。
In order to reduce the support pressure of large cross-sections，The company organized a "Youth Troubleshooting Team" to actively carry out on-site hidden danger inspections，Use the "online and offline" multiple methods of the handheld terminal APP to implement rectification，Cumulatively eliminated 57 hidden dangers in the bud。
Also，Fan Peng, the first production team leader of the continuous mining team, and the team members use the single-arm anchor drilling equipment，Follow-up support for 528 anchor cables on the center line of the roof，Every effort has been made to ensure production safety。
"Record according to the checklist，It’s time to tighten the swing cylinder of the continuous mining machine，There is not much antifreeze in the shuttle car..." In order to prevent the phenomenon of "laying down" in the excavation process，Deputy Captain of Mechanical and Electrical Engineering Deng Zhiqi implements equipment inspection and maintenance measures，Promote "experience" to "list"，Realized the transformation of equipment maintenance from emergency "rush repair type" to advanced "predictive type"，Ensure zero delay in cutting holes。
Meanwhile，The company takes advantage of the full underground M88 logincoverage of 4G network，Installed high-definition cameras on the heads of the four belt conveyors on the 213109 working surface，Distribute smart mining lamps to post workers，Achieved the "visualization + callable" effect，On-duty personnel can control in real time on the ground，Ensures the efficient operation of the raw coal transportation aorta，Laid a solid foundation for safe production in mines。(Author: Li Jintao Editor: Wang Yu)