Перегляд по темі "rock massif"
Зараз показуються 1-10 з 21
-
Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries
(National Mining University, 2020-03-30)Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar ... -
Determination of the influence of the degree of fracturing of the rock mass on the index of reduction of its strength
(2023)Purpose. The purpose of research of the presented scientific publication is to establish the regularity of changes in the generalized coefficient of strength reduction of disturbed rock massif depending on the degree of ... -
Development and analysis of computational model of geomechanical system “layered massif – working support”
(National Mining University, 2016-06-30)Purpose. Substantiating the method for forecasting rock pressure manifestation in the system “layered massif – working support” on the basis of displacement patterns detection at any arbitrary point of the preparatory ... -
Development of natural underground ore mining technologies in energy distributed massifs
(2020)The object of research is the technology and facilities for underground mining of ores in the disrupted massifs. One of the most problematic places is the formation of man-made voids; which influence the occurrence and ... -
Generalization of trends in the influence of geomechanics factors on the choice of operation modes for the fastening system in the preparatory mine workings
(National Mining University, 2019-09-30)Purpose. Substantiation of the mechanism of loading the preparatory mine working support to optimize its deformation-strength characteristics based on the calculation of the stress-strain state of the “massif – support” ... -
Geo-energetics of Ukrainian crystalline shield
(2019)Purpose. To develop an analytical method which allows investigating the energy condition of rocks within the Ukrainian Crystalline shield. Methodology. Analytical research on the energy condition of rocks has been conducted ... -
New technologies and technical means of fixing mine workings using geo-energy
(2020)The main scientific and practical results of the development and implementation of new technologies and equipment for mining using geo-energy, allowing the use of the maximum amount of energy generated in the safety capsule ... -
New theory of rock massif fragmentation by using explosion energy
(Видавництво НТУ ДП, 2020)Purpose. Ore mining involves the destruction of large volumes of hard rocks, which requires preliminary fragmentation by using drilling-and-blasting operations. Therefore, special attention is paid to the ... -
NEW THEORY OF ROCK MASSIF FRAGMENTATION BY USING EXPLOSION ENERGY
(2020)The hypotheses of the explosive action and the theory of calculating the values of the zones' radiuses of contortion and cracks formation around the charging cavity have been analyzed for developing the theory of the rock ... -
Numerical methods of geomechanics tasks solution during coal deposits’ development
(National Mining University, 2016-09-30)Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of ...