ПЛАНИРОВАНИЕ ДОБЫЧИ УГЛЯ С УЧЕТОМ ИНТЕНСИВНОСТИ ОТГРУЗКИ И ПРОПУСКНОЙ СПОСОБНОСТИ ТРАНСПОРТНЫХ МАГИСТРАЛЕЙ

Abstract

For effective planning of coal mining in coal mines, it is necessary to take into account the relationship between internal and external processes that occur from the moment of coal mining to the moment it is sold to consumers. Internal processes are primarily due to the coordination of operations for dril- ling and blasting operations, excavating rock mass into dumps, moving coal to warehouses, enrichment and its further shipment to railway cars. External processes are due to the provision of coal delivery to consumers, taking into account the throughput of transport routes, the demand for coal and the pricing policy on export markets that develops in a certain period of time. Using the example of coal companies included in Kuzbassrazrezugol JSC, the article examines a twolevel dynamic model for planning coal mining, taking into account the intensity of shipment and the throughput of transport routes. At the first level, the volumes of production of coal intended for export are determined by months, taking into account the intensity of demand for the periods of the year and all restrictions that affect the speed of coal movement to the consumer. At the second level of the system under consideration, there is a redistribution of the sales volumes of coal for export within one time period, taking into account the limitations in the throughput of transport routes, the speed of delivery of goods to the consumer, the level of demand and prices for coal. The use of the dynamic programming method made it possible to solve the problem of redistributing the volumes of coal sales for export at the second level and, using the results of solving this problem, at the first level, to determine the optimal volumes of coal production for export.