Forecast for the formation of zones of high rock pressure in the conditions of mining ore deposits in a combined way

Potapchuk, M. I.; Саксин, Б. Г.; Sidlyar, Alexander; Tereshkin, A. A.; Rasskazov, M.I.

doi:10.1051/e3sconf/201912901021

Cited by 1 publication

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“…Significant heterogeneity of natural stress fields, predetermined by the complexity and peculiarities of the tectonic and geological structure of the deposits, is further enhanced 2 by the technogenic impact on the rock mass as a result of mining operations. Redistribution of initial stresses in space and time, as well as concentration thereof in some areas, is one of the main causes of dangerous failure of massif areas in the dynamic form [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Study of the tectonic structure and modern geodynamics of the nickel-copper-sulfide Kun-Manyo deposit at the stage of its field the development

Potapchuk

Rasskazov

Usikov

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Currently, the Kun-Manyo nickel-copper-sulfide deposit in the north of the Khabarovsk Krai is being prepared for development, with part of the reserves expected to be mined by underground mining. To justify the rational order of opening and excavation of sub-ore reserves it is necessary to have objective information on rock mass condition, which can be received as a result of complex geodynamic and geomechanical investigations. The established geodynamic position of the deposit, determined by its location at the junction of actively interacting large tectonic elements of the Euro-Asian tectonic plate – the tectonic stress of the North Asian craton and the Amur plate, as well as within the modern Olekmo-Stanovo seismic zone, has allowed the massif of the field area to be classified as tectonically stressed. An analysis of the data of the GPS-observation points on the territory of the Russian part of the Amur tectonic plate, the results of calculations of the vector field of velocities of modern movements of points, made within the framework of the ITRF – 2000 coordinate system, as well as the results of in-situ geomechanical studies of rock massifs of the Amur Plate’s rock-bump hazardous deposits, have made it possible to establish the current tectonic regime of the deposit area – a region of intense modern compression with a predicted intensity of more than 50 MPa. By methods of morphometric analysis and remote sensing, it has been found that the relative relief excesses were significant (700–1000 m), which may lead to an uncompensated horizontal component of geostatic stress. The most extended lineaments of the relief have predominantly southeasterly extension. The identified features of the tectonic structure and regional neotectonics have made it possible to determine the most probable direction and magnitude of the current main horizontal compression, which could be further used in solving various geomechanical problems in the exploitation of the field.

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Section: Introductionmentioning

confidence: 99%