GEODYNAMIC STATE OF ROCK MASSes IN THE FAULT ZONES OF ZARNITSA DIAMOND PIPE
V. I. Vostrikov1, A. A. Potaka2, K. L. Naumov2
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Management of Udachny Mining and Processing Division, Udachny, Mirny District, Sakha Republic
Keywords: Diamond mine, measuring and computing system, sensor, monitoring, tectonic fault, fault zone, displacement
Abstract
A multi-channel measuring and computing system consisting of four sensors was in operation at the open pit of Zarnitsa diamond pipe in 2019 and 2020. In 2019, intensive mining operations were carried out at the open pit. The sensors recorded dynamic changes in the width dimensions of fault zones. After temporary closing down of mining operations in the beginning of 2020, the widths of fault zones changed smoothly with positive and negative trends, which indicated an increase in the stress state of rock masses. These changes exceeded the values when mining operations were conducted. It is found that dynamic effects reduce the stress state of rock masses.
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