Mining excavations by pre-slotting method
Authors:
Abstract
At present, the mining industry is increasingly using the method of contour blasting when sinking workings. Contouring of workings is carried out either before or after the destruction of the main mass of rock. According to this feature the main division of contour blasting is made: 1) preliminary slotting and 2) with subsequent contouring. The second method is used only for the purpose of ensuring the best conformity of the excavation cross-section to the design contour; the first, in addition, is more and more widely used in those cases when it is necessary to ensure the safety of some object beyond the design contour from the harmful effects of blasting.
Область исследования:
(Archived) Without section
Funding:
None
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. LGI, 1965.
- Melnikov I. 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. V sb. "Vzryvnoe delo", No. 54 11, Nedra, 1964.
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