Abstract
In terms of Tashtagol Mine, the authors address the issues connected with the configuration and surface of cavities formed by blasts of explosive charges in high-stress rock mass structured as a hierarchy of blocks. Laser scanning of a cavity offers the data on linear and angular characteristics of the cavity surface. The analysis of the surface structure provides details of the rock mass block hierarchy, which essentially influences formation of the roof and sidewalls of the cavity. Individual areas of the cavity surface are described with the help of approximation of measured coordinates of the cavity boundary in the cross sections using the second order curves, including circumferences and ellipses the radius of which are canonically connected with the phenomenon of zonal disintegration of rock mass.
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20 July 2018
Due to a technical error volume 53, issue 4, 2017 has been published online with an incorrect cover data. The issue has erroneously been distributed with the cover date July 2018. The correct caver date for volume 53, issue 4 should be July 2017.
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Original Russian Text © V.N. Oparin, V.F. Yushkin, V.K. Klimko, D.E. Rublev, A.S. Izotov, AV. Ivanov, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2017, No. 4, pp. 181–196.
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Oparin, V.N., Yushkin, V.F., Klimko, V.K. et al. Analytical Description of Surface of Blasting-Formed Underground Cavities by Laser Scanning Data. J Min Sci 53, 789–800 (2018). https://doi.org/10.1134/S1062739117042789
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DOI: https://doi.org/10.1134/S1062739117042789