A new direction of drilling and blasting operations during sinking of vertical shafts of mines
Abstract
A large amount of work in the construction of mines, as is known, falls on mining operations, and the greatest complexity and labor intensity is the conduct of vertical shafts. In recent years, many new machines, mechanisms and different types of equipment have been created, which allowed to significantly increase the rate of mining excavations, in particular vertical shafts. So, according to D. I. Maliovanov, in the coal industry with an increase in the volume of sinking vertical shafts from 5958 meters in 1946 to 20 724 meters in 1956. The level of mechanization of rock loading increased from 2.3% in 1948 to 87.4% in 1956. Maximum rates of vertical shaft sinking increased from 69.4 m in 1946 to 202.1 m in 1955, 241.1 m in 1957 and 264.6 m in 1959.
References
- Bokiy B. I. Ways of development of the coal industry of the Donetsk basin. Coal and Iron, 1925, No. 1.
- Zavadovsky K. M. Mine Shaft Sinking in the Conditions of the Lvov-Volyn Basin. Uglegletehizdat, 1957.
- Kalmykov E. P. High-Speed Sinking of Vertical Shafts of Coal Mines. Uglegletehizdat, 1957.
- Shkabara M. N. Ways of acceleration of shaft sinking in watered conditions of Lugansk region. (Report at the scientific and technical conference on high-speed construction of mines in Lugansk, April 22-24, 1958).
- "The New in Shaft-Sinking" Coal Age, No. 4, 1955. pp. 74-75.
- Experience with Large Rotary Drills. Mining Congress Journal, No. 10, 1954, pp. 29-32.