Slashchov І.M., Makeiev S.Yu., Slashchova O.A. Methodology for assessing a set of rock massif state parameters for ensuring compliance of the roadway support systems with safety requirements

Details
Parent Category: Geo-Technical Mechanics, 2018
Category: Geo-Technical Mechanics, 2018, Issue 143

Geoteh. meh., 2018, 143, 127-142

https://doi.org/10.15407/geotm2018.143.127

METHODOLOGY FOR ASSESSING A SET OF ROCK MASSIF STATE PARAMETERS FOR ENSURING COMPLIANCE OF THE ROADWAY SUPPORT SYSTEMS WITH SAFETY REQUIREMENTS

1Slashchov І.M., 1Makeyev S.Yu., 1Slashchova O.A.

1Institute of Geotechnical Mechanics named by N. Polyakov NAS of Ukraine

UDC 622.831.31 : 622.817

Languige: Ukrainian

Annotation.

The authors present their studies on determining a set of methods for assessing parameters of the geotechnical system "rock massif-mine workings" and for ensuring compliance of the roadway support systems with safety requirements. The methodology combined principles of mathematical modeling of the rock massif stress-strain state by the finite element method; methods for forecasting the rock massif and roadway support system stability; and new ways for identifying areas with low-amplitude tectonics by the radiometric control method. The set of the scientific findings create a basis for scientific and methodological recommendations on comprehensive assessing parameters of the rock massif geomechanical and gas-dynamic state and on ensuring the mining operations safety. The recommendations include basic principles for parametrical identification of co-occurrence of geomechanical and gas-drainage processes in the rock massif with the help of geoinformation systems, and differ by taking into account parameters of the main stresses and strains, location and distribution of zones with inelastic deformation, changes in the volume of the pore-fracture space, and by using new algorithms for identifying fracture zones by methods of radon decay product radiometric control in the air of mine workings. It is shown that various radon isotopes can be clearly detected by aspiration radiometry techniques, and their quantitative characteristics can characterize geomechanical and gas dynamic processes in the rock massif. Parameters of inelastic deformation of the rock massif as an object of parametric identification in conditions of information uncertainty are evaluated by the advanced software GEO-RS© designed in the IGTM, NASU, by the group headed by the authors. The obtained scientific results provide the basis for further improvement of the existing and development of new hybrid analytical and experimental methods for monitoring safety of geotechnical systems and creation of digital information systems for preventing dangerous situations in industrial enterprises.

Keywords: geotechnical system, rock massif control methods, stress-strain state of rocks, radon monitoring, safety of roadway support systems.

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About the authors

Slashchov Ihor Mykolayovych, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in the Department of Mineral Mining at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM, NASU), Dnіpro, This email address is being protected from spambots. You need JavaScript enabled to view it.

Makeyev Serhiy Yuriyovych, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in the Department of Mineral Mining at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM, NASU), Dnіpro, This email address is being protected from spambots. You need JavaScript enabled to view it.

SlashchovаОlena Anatoliivna, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in the Department of Mineral Mining at Great Depths, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM, NASU), Dnіpro, This email address is being protected from spambots. You need JavaScript enabled to view it.