On March 31, the Jinjie Coal Mine of Shendong Coal achieved a single-month tunneling footage of 1,865 meters, successfully setting a new record for monthly tunneling footage, marking a important progress achieved through intelligent mine construction and refined management. The Mine’s No. 2 Tunneling and Bolting Team , with a focus on production targets and supported by intelligent equipment and refined management, overcame challenging tunneling issues under complex geological conditions. Leveraging the integrated operational advantages of the roadheader bolter, including cutting, support, and transport, the team optimized process interfaces and implemented a synchronized excavation-and-support model with seamless transitions, achieving efficient coordination across excavation, bolting, and transport operations, thereby substantially enhancing operational efficiency.
Safety serves as the prerequisite for high-efficiency tunneling. The team established a grid-based safety responsibility system, allocating control responsibilities down to each process and each position. Regular hazard identification and equipment risk inspections were conducted, and a full-cycle maintenance mechanism, including on-shift, daily, ten-day, and monthly inspections, was strictly implemented to ensure zero-fault operation of critical equipment such as the roadheader bolter. Additionally, on-site supervision was strengthened, with close monitoring of key processes including roof support, gas detection, and equipment operation, resulting in zero safety incidents during operations and establishing a robust safety foundation for rapid tunneling.
In terms of production organization, the team implemented a three-shift coordinated management model with clear accountability. Monthly targets were broken down into daily and shift-based objectives, ensuring that all workers had clear targets and every task was properly executed. Leveraging intelligent functions of the roadheader bolter such as precise positioning and automatic cutting, the team continuously enhanced operational standardization, steadily increasing daily footage and ultimately achieving the historic monthly record of 1,865 meters.
