CALCULATION OF PITWALL SLOUGHING DYNAMICS IN CARBONATE ROCKS WITH DIFFERENT FREEZE RESISTANCE
V. I. Sleptsov, A. S. Kurilko
N.V. Chersky Institute of Mining of the North, Siberian Branch, Russian Academy of Sciences, pr. Lenina 43, Yakutsk, 677980 Russia
v.i.sleptsov@igds.ysn.ru
Keywords: Mathematical modeling, permafrost zone, heat exchange, thermophysics, rock properties, radiative balance, pitwall sloughing
Pages: 34-41
Abstract
The article proposes mathematical model of heat exchange between open pitwall and atmosphere for forecasting temperature field in permafrost strata, daily change in radiative balance; slope angle and surface orientation; influence of contiguous benches. In terms of Udachny Mine, time dependence of pitwall sloughing layer thickness is estimated under cyclic effect of freezing–defrostation in rocks having different freeze resistance.
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