Calculation of parameters of main technological processes during mine field opening, preparation and development under specified mining and geological conditions

The course project on the discipline Fundamentals of Mining and Enrichment is devoted to the calculation of parameters of the main technological processes during the opening, preparation and development of the mine field under given mining and geological conditions. The course project is based on the knowledge acquired in the first semester of the second year. This course project is carried out in order to develop skills to independently solve the problems of design, design and organization of mining operations. The tasks of the project are: choosing a rational scheme for opening and preparing the mine field, choosing a development system and calculating some of its parameters. The course design consists of a calculation and explanatory part made in the MS Word text editor and one drawing. Annual capacity of the designed mine Ash, million tons. 3.0 Mine field size along the formation stretch Ssh, km - Mine field size along the formation drop Nsh, km 3.0 Water capacity factor, w 0.4 Distance from the surface to the upper technical boundary of the mine field h0, m 80 Bed capacity, m: 3.2 * m1 (upper) m2 3.4 m3 1.9 m4 1.3 Normal distance between formations, m: M1-2 15 M2-3 20 M3-4 20 Formation angle a, deg 15 Formation resistance to cutting Ar, kN/m 285 Relative gas release q, m3/t 21 Weighted weight. coif-t of side rock strength on the scale of prof. M.M. Protodyakonova f 5 Coal density in the massif γ, t/m3 1.36