| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: invention relates to mining, more precisely to open mining of high deposits with use of continuous operation technique. The method includes cutting of a permanent trench, construction of a working trench, installation of transportation lines, bench cutting of mineral resources by continuous extraction and haulage system with a fan-shaped area of operations. When operations are performed in the fan-shaped manner a solid bed located outside the fan-shaped border is developed simultaneously; mineral deposits are shipped to transportation lines and at first the area of a V-shaped cut is determined at the fan-shaped area of operations in compliance with the following condition:where L- length of working area, m; ?- angle of working area turn, degree; then the area of the V-shaped cut is determined with consideration of the solid bed in compliance with the following condition:where L- length of working area, m; ?- angle of working area turn, degree; and for the purpose of simultaneous performance of the fan-shaped working area and the V-shaped cut in the solid bed its volume is determined in compliance with the following condition:where H is an average thickness of mineral deposit, m; Sis the area of the V-shaped cut with consideration of the solid bed, m; Sis the area of the V-shaped cut, m.EFFECT: reducing labour intensity, increasing efficiency, sound extraction of mineral resources and safety of mining operations.3 dwg |
