JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV MINE PLANNING Previous Question Paper (October/November - 2020 - R16)

Short-term mine planning serves as the critical operational bridge between long-term strategic goals and daily extraction activities. Its primary importance lies in ensuring that the mine meets production targets while maintaining safety and economic viability. By focusing on weekly, monthly, or quarterly horizons, it allows for the precise scheduling of equipment, personnel, and material flow, which minimizes operational bottlenecks. Furthermore, it facilitates proactive grade control, ensuring the extracted ore meets the required specifications for processing plants, thereby optimizing revenue. Effective short-term planning also enables the immediate adjustment of mining sequences in response to geological uncertainties, equipment breakdowns, or market fluctuations, ensuring that the overall mine life and profitability remain aligned with the long-term plan.

Technical factors influencing short-term mine planning are essential for maintaining operational continuity and efficiency. Key factors include:

• Geological and Geotechnical Conditions: Real-time data on ore grade distribution, rock mass stability, and structural geology dictate the immediate mining sequence and support requirements to ensure safe extraction.
• Equipment Availability and Utilization: The mechanical health, cycle times, and availability of drills, loaders, and haulage fleets directly constrain the daily production capacity and scheduling.
• Mine Infrastructure and Logistics: The status of haul roads, ventilation systems, dewatering pumps, and power supply networks must be integrated into the plan to prevent operational delays.
• Grade Control and Blending Requirements: Short-term plans must account for the specific blending needs of the processing plant, requiring precise selection of ore blocks to maintain consistent feed quality.
• Mining Method and Sequence: The physical constraints of the chosen mining method, such as stoping sequences or bench advancement rates, determine the spatial progression of the mine and the accessibility of ore bodies.
• Waste Management: The availability and capacity of waste rock dumps or tailings storage facilities influence the haulage cycle and the overall efficiency of the mining operation.