Determination of mining parameters for thin bench development by draglines ( using the example of the Kingisepp phosphate deposit)
Authors:
Abstract
The Kingisepp phosphate rock deposit is a horizontal stratum-shaped deposit with an average thickness of 2.5 meters and is characterized by significant water cut (in 1964, the average water inflow was 150 m3/h). Due to the pit's high ore output, the strip of exposed reserves exceeds 200 meters. During the winter months, the phosphorite bed freezes and its mining is associated with drilling and blasting operations. It is well known that the depth of freezing of rocks depends largely on their moisture content. The groundwater level can be reduced by a number of measures using the excavator available at the quarry ...
Область исследования:
(Archived) Without section
Funding:
None
References
- Norkin I. M. Development of calculation methods for rock transshipment beyond the contour of the quarry. Zapiski Gornogo Instituta, vol. XLIX, iss. 1, 1964.
- Rzhevskiy V. V. et al. Technology and complex mechanization of open pit mining of coal, ores and non-metallic minerals, vol. 3. Preparation of Rocks for Excavation. MIRGEM PH Izd-vo MIRGEM, 1963.