Investigations of contouring borehole charge designs for vertical shaft sinking
Authors:
Abstract
The practice of construction of vertical shafts by drilling and blasting method in the conditions of combine “Rostovshahtostroy” shows that the improvement of parameters of drilling and blasting works allows to reduce the deviation of actual cross-sections from the design. At the same time it is not accompanied by reduction of irregularities of the rock walls of the shaft, and destruction of rocks in outcrops remains still significant.
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References
- Borovikov V. A. Research of influence of charge explosion conditions on the process of destruction and ways to increase the use of explosive energy. Author's abstract of cand. dissertation. LMI, 1965.
- Melnikov I. V. V., Marchenko L. I. Explosion Energy and Charge Design. Nedra, 1964.
- Khanukaev A. N. About the influence of radial gaps and air spaces on the parameters of the stress wave and the fracture process. In the collection: Blasting, No. 54 11, Nedra, 1964.
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