Earth’s Cryosphere, 2017, Vol. XXI, No. 5, p. 69-75

CONTROL OF GROUND TEMPERATURES UNDER HEADFRAMES AND COLLARS OF VERTICAL SHAFTS: A CASE STUDY OF THE UDACHNY DIAMOND MINE (YAKUTIA)

A.S. Kurilko1, Yu.A. Khokholov1, A.V. Drozdov2, D.E. Solovev1

1Chersky Mining Institute of the North, SB RAS, 43, Lenina ave., Yakutsk, 677980, Russia; Solovjevde@igds.ysn.ru
2Institute of the Earth’s Crust, SB RAS, 128, Lermontova str., Irkutsk, 664033, Russia; drosdovav@list.ru

The paper presents data on ground temperatures and salinity of groundwater and soil under headframes and collars of vertical shafts at the ALROSA underground diamond mine of Udachny. The ground temperature pattern for the headframe pile foundation is reconstructed using 3D modeling of heat transfer in soil. Numerical experiments allow predictions for the rate of 0 °C isotherm propagation in soil during operation-suspension cycles of a freezing system, with implications for the optimal schedule of temperature logging.

Permafrost, mine, temperature regime, geothermal monitoring, pile foundation, headframe, vertical shaft, ground freezing system

DOI: 10.21782/EC1560-7496-2017-5(69-75)