The output of Kinsey Project in Q1 achieved a year-on-year increase of 5.2%, with a jump of 27.8% in March over February, hitting a new record high for monthly output since the project launched production and laying a solid foundation for reaching the annual production target.
From January to March, through strictly enforcing requirements for production safety, fully implementing the system of managerial personnel personally leading shifts at underground site and giving full play to technical based safety management, the project pooled their wisdom to shore up weak links identified during key indicators break-down and the impressive result was thus achieved. The initiative of the project employees was boosted by improving mechanism for unit equipment contracting to better leverage its incentive role, taking measures to enhance the “dedicated person responsible for specified parts of designated equipment” management. Work efficiency was promoted through building high-quality teams by optimal combination of drilling jumbo and operator. After strengthening the management of connection of mining and filling processes and refinement of production procedures, operation efficiency of mining and filling has been improved. Besides, close monitoring of equipment operation guaranteed their availability and utilization and enhanced work organization management ensured cycle efficiency of excavation, mining and ground support and increased unit equipment efficiency.
Precise breakthrough of 2# conveyor decline was achieved by JCHX Kinsey project at the upper zone of Čukaru Peki Copper-Gold Mine, highly recognized by Zijin Serbia, the Employer.
2# conveyor decline, with a length of 966m, is a critical transportation system to facilitate quick and efficient mining and smooth transportation for the three levels between -200m and -320m. 80% of the works are carried out in rocks with hardness scale of IV and V, featuring construction complexity and requiring strong technology support. The project faced the challenges head-on by applying breaker hammer plus steel arch support to addressing the problem of broken ground and the method of forepoling in long distance plus support immediately after excavation with mesh and shotcrete, ensuring each operation cycle being completed in strict accordance with established plan.
Considering the last 47.5m section are all Class V rocks and to ensure the safety of breakthrough, technical personnel conducted in-depth research and thorough discussion before determining to apply the comprehensive ground support process, i.e. forepoling plus blast-free support immediately after excavation plus steel arch plus shotcrete. The adoption of process-based rolling shift operation also greatly improved the construction efficiency.
