Kryvyi Rih National University (Kryvyi Rih, Ukraine):

Stupnik N. I., Acting Rector, Head of a Chair, Professor, Doctor of Engineering Sciences
Popov S. O., Head of a Chair, Professor, Doctor of Engineering Sciences
Azaryan V. A., Assistant Professor, Candidate of Engineering Sciences, e-mail: aza1@riad.com.ua

«Kryvyi Rih Iron Ore Combine» Public Company (Kryvyi Rih, Ukraine):

Karamanits F. I., Chairman of Board

This article presents the results of dynamics of development of deformation processes' study in the area of Rodina mine haulage drift («Krivbasszhelezrudkom» Public Company). Currently works on iron ore mining companies in Kryvyi Rih basin have reached great depths (300–400 m in open pit, 1200–1500 m in mines). Large depth of intrusion caused large-scale development of high inner pressure and dangerous dynamic effects, associated with accumulation of large elastic strain energy in rock mass. The change of natural geomechanical state rocks near these troughs leads to development of high mechanical stresses around the excavation sites of mines. The results of measurement of geometrical parameters' contours were collected over a length of 70 m, which was carried out in the process of mining operations with automated laser scanning system ACC-1, developed by specialists of laboratory of Kryvyi Rih National University. Detailed analysis of measurements and construction of 3D-object models were implemented on a personal computer, using a special program. The results of measurements and statistical processing of obtained values established empirical relations, which predict the beginning of formation of dangerous geodynamic situations and proactively implement safety measures on early excavation stages.

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