М.B. Fedko
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View article: Improvement of the stoping technology in mining magnetite quartzite by underground methods
Improvement of the stoping technology in mining magnetite quartzite by underground methods Open
The ore deposits in Kryvyi Rih iron ore basin are mined using bulk ore and overlying rocks caving systems. These mining systems have a significant drawback, namely a 2 – 5% reduction in the iron content of the mined ore mass when mining ri…
View article: Use of high-performance explosives in underground mining
Use of high-performance explosives in underground mining Open
УДК 622.27 С.В.ПИСЬМЕННИЙ ., М.Б.ФЕДЬКО, кандидати техн.наук, доценти Криворізький національний університет ВИКОРИСТАННЯ ВИСОКОПРОДУКТИВНИХ ВИБУХОВИХ РЕЧОВИН НА ПІДЗЕМНИХ ГІРНИЧИХ РОБОТАХ Мета.Дослідження високопродуктивних вибухових речов…
View article: Study of environmentally safe open-pit and underground mining with mining waste disposal in the worked-out space of underground mines and open pits
Study of environmentally safe open-pit and underground mining with mining waste disposal in the worked-out space of underground mines and open pits Open
УДК 622.2 М.І.СТУПНІК ., В.О.КАЛІНІЧЕНКО, О
View article: Study of Compensation Room Impacts on the Massіf Stability and Mined Ore Mass Quality
Study of Compensation Room Impacts on the Massіf Stability and Mined Ore Mass Quality Open
The paper presents the study and a functional analysis of requirements of the world metallurgical industry to the quality of underground iron ores at underground mines of Ukraine. There are found dependencies of the impact of the shape and…
View article: Enhancement of the rock mass quality in underground iron ore mining through application of resource-saving technologies
Enhancement of the rock mass quality in underground iron ore mining through application of resource-saving technologies Open
Annotation In terms of mining and geological structure, ore deposits are complex-structured and composed of single, parallel-contiguous ore bodies. The reserves of barren or ore inclusions with the useful component content less than the cu…
View article: Methodology enhancement for determining parameters of room systems when mining uranium ore in the SE “SkhidGZK” underground mines, Ukraine
Methodology enhancement for determining parameters of room systems when mining uranium ore in the SE “SkhidGZK” underground mines, Ukraine Open
Purpose. The present paper aims to enhance methodology for determining the safety and stability parameters of room mining systems with backfilling of the mined-out area when mining uranium ores in underground mines of the State Enterprise …
View article: Study and Enhancement of Underground Mining Technologies to Prevent Earth’s Surface Failures
Study and Enhancement of Underground Mining Technologies to Prevent Earth’s Surface Failures Open
The work contains studies of the problem of stabilizing geodynamic processes in the rock massif, preservation of the daylight surface and ecological balance in the mined-out and operating mine fields of Ukraine. The main regularities of in…
View article: Technology for mining of complex-structured bodies of stable and unstable ores
Technology for mining of complex-structured bodies of stable and unstable ores Open
The object of the study is a rock massif represented by complex-structured ore bodies mined by underground systems with open stoping or systems with bulk caving. Deposits of Kryvyi Rih iron ore basin are represented by different types of f…
View article: Mining of rich iron ore deposits of complex structure under the conditions of rock pressure development
Mining of rich iron ore deposits of complex structure under the conditions of rock pressure development Open
The purpose of research is to increase the ore mass extraction ratio when mining rich iron ores by changing the shape of the stope chamber, as well as to substantiate its stable parameters under the conditions of the rock pressure manifest…
View article: The study of the stress-strain state of the massif in mining uranium at “VOSTGOK” deposits
The study of the stress-strain state of the massif in mining uranium at “VOSTGOK” deposits Open
Being one of the world’s largest uranium producers(about 2% of the world’s production), the state enterprise “Vostochnyi Mining and Processing Works” (“VostGOK”) provides about 40% of Ukraine’s nuclear power stations with uranium raw mater…
View article: Investigation of the dust formation process when hoisting the uranium ores with a bucket
Investigation of the dust formation process when hoisting the uranium ores with a bucket Open
Purpose. Determining the possible level of air dustiness during the bucket hoisting of uranium ores along the shaft “Holovnyi” of the mine “Novokostiantynivska”, SE “VostGOK”.
\nMethods. To determine the level of air dustiness, a physical …
View article: Determination of drilling and blasting parameters considering the stress-strain state of rock ores
Determination of drilling and blasting parameters considering the stress-strain state of rock ores Open
deterMinAtion of drillinG And BlAStinG PArAMeterS ConSiderinG the StreSS-StrAin StAte of roCk oreSPurpose.Enhancing methods for determining parameters of drilling and blasting operations considering the stressstrain state of rocks.Methodol…
View article: Muck drawing by inclined two-dimensional flow
Muck drawing by inclined two-dimensional flow Open
The work aims at studying and developing an efficient option of layer-by-layer muck drawing from the “dead area” of the footwall for the account of forming an inclined limiting contact of the muck ore with the unmined ore massif. The paper…
View article: Investigation into crown stability at underground leaching of uranium ores
Investigation into crown stability at underground leaching of uranium ores Open
Purpose.Determination of influence of various factors on crown stability at underground block leaching of uranium ores.Methodology.Mathematical modeling applying the finite element and analytical methods is used to investigate into the imp…
View article: Improvement of the method of drilling and blasting operations at the use of explosive substance «Ukrainite» in underground mining works
Improvement of the method of drilling and blasting operations at the use of explosive substance «Ukrainite» in underground mining works Open
The object of research is a rock massif of iron ore, which is destroyed by an explosive located in deep wells. One of the most problematic places is ensuring uniform grinding of the rock massif during underground mining of mineral deposits…
View article: Problems of developing ore deposits at deep levels of Kryvbas underground mines
Problems of developing ore deposits at deep levels of Kryvbas underground mines Open
М.І.СТУПНІК ., д-р техн
View article: Upgraded method for determining the parameters of drilling and blasting operations with the stress-strain state of the massif when it collapses onto an inclined outcrop
Upgraded method for determining the parameters of drilling and blasting operations with the stress-strain state of the massif when it collapses onto an inclined outcrop Open
УДОСКОНАЛЕННЯ МЕТОДИКИ ВИЗНАЧЕННЯ ПАРАМЕТРІВ БУРОВИБУХОВИХ РОБІТ З УРАХУВАННЯМ НАПРУЖЕНО-ДЕФОРМОВАНОГО СТАНУ МАСИВУ ПРИ ЙОГО ОБВАЛЕННІ НА ПОХИЛЕ ОГОЛЕННЯМета.Удосконалення методики визначення параметрів буровибухових робіт за рахунок враху…
View article: Defining the crown thickness at underground leaching of uranium ores in mining by vertical double blocks
Defining the crown thickness at underground leaching of uranium ores in mining by vertical double blocks Open
ДП «Східний гірничо-збагачувальний
View article: Method of simulating rock mass stability in laboratory conditions using equivalent materials
Method of simulating rock mass stability in laboratory conditions using equivalent materials Open
Цель. Определить качественный состав эквивалентного материала лабораторной модели, отражающей горный массив Криворожского железорудного бассейна, а также разработать методику по определению его количественного состава при исследовании усто…
View article: Information technologies as a component of monitoring and control of stress-deformed state of rock mass
Information technologies as a component of monitoring and control of stress-deformed state of rock mass Open
ІНФОРМАЦІЙНІ ТЕХНОЛОГІЇ -СКЛАДОВА ПРОЦЕСІВ МОНІТОРИНГУ ТА КЕРУВАННЯ НАПРУЖЕНО-ДЕФОРМОВАНИМ СТАНОМ МАСИВУУ роботі наведено й обґрунтовано основні концепції застосування інформаційних технологій щодо моніторингу та можливості керування напру…