Oleh Khomenko

• Professor
• Professor (Full) at Dnipro University of Technology

The monograph is devoted to solving the scientific problem of geomechanics of creating underground infrastructure during ore mining using emulsion explosives based on the established patterns of the formation of crush zones, intensive grinding and cracking around the charging cavity formed in a rock mass as a result of the explosion, as well as cha...

The monograph is devoted to the issues of increasing the competitiveness of mining enterprises developing iron ore deposits underground in difficult geomechanical conditions. The mining and geological characteristics and the current state of the technology for underground development of iron ore deposits in Krivbass are presented. The possibilities...

This paper summarizes the results of evaluating uranium in-situ leaching (ISL) parameters for hydrogenous deposits in eastern Mongolia. This method, also known as in-situ recovery (ISR) or solution mining was proposed for mining used to extract uranium from underground deposits without physically removing the ore. The studies included drilling, geo...

Mathematical modelling of rock mass breaking using blasting has been applied to obtain formulas for the calculation of crush zone radii, intensive fragmentation, and crack formation around the charging cavity in the structure, diameter of the charging cavity, diameter of the charge itself, detonation characteristics of an explosive, boundaries of t...

This paper reports the results of experimental studies of the development of rich iron ore deposits using method of hydraulic mining by boreholes. The studies included a step-by-step implementation of a set of experimental mine works on hydrodisintegration of ore mass using pressure water jets through boreholes until the design contours of the cavi...

The development of rich iron ore deposits in the Kryvyi Rih Basin is carried out by underground methods at considerable depths. This mining method is characterised by high labour, capital and operating costs. In the paper, the experimental research on the establishment of rational parameters of borehole hydrotechnology for the sustainable managemen...

The article presents a brief overview of experimental models of diamond formation that are most likely to simulate the conditions and mechanisms of diamond formation in nature. Different synthesis methods are considered both under conditions of thermodynamic stability and metastability of diamonds. Average values of thermobaric parameters for each...

This paper analyzes ore delivery methods suitable for the deep-level mining environments of the Kryvbas region. The study focuses on the feasibility and economic advantages of utilizing a combined scraper-self-propelled ore delivery system within sublevel caving operations. Through comprehensive analysis, it is found that the integration of self-pr...

Purpose. The purpose of the study is to conduct an environmental assessment of the state of the atmospheric air during iron ore mining using TNT-containing and emulsion explosives (EE). The methodology of research. To determine the features of dispersion in the atmosphere of environmentally hazardous substances at different distances from the air p...

Based on an analysis of existing methods for raises advance, the safest, most productive, and low-cost method is hydraulic well technology. This method offers advantages such as low operation and flow rate, flexibility in managing concentration and volume of work, safety, and compatibility with traditional mining technologies. Studies on raises adv...

Уміщено теоретичні відомості за темами практичного курсу, варіанти практичних завдань з рекомендаціями до їх виконання, контрольні питання, список використаної та рекомендованої літератури. Орієнтовано на активізацію навчальної діяльності здобувачів ступеня магістра освітньо-професійної програми «Гірничорудна інженерія» спеціальності «Гірництво» та...

Using the well-known laws of the theory of elasticity and the basic principles of the quasi-static wave hypothesis of the mechanism of destruction of a solid medium by an explosion, methods have been developed for calculating the parameters of drilling and blasting (D&B) for raises advance using the methods of blast-hole and borehole charges. It ha...

Подано методичні рекомендації до виконання курсового проєкту з проєктування гірничорудного виробництва для студентів освітньо-професійної програми «Гірничорудна інженерія» другого (магістерського) рівня вищої освіти зі спеціальності 184 Гірництво. Уміщені основні вимоги до структури, змісту пояснювальної записки та вимоги до графічної частини курсо...

Purpose. Development of new methods for calculating the parameters of drilling and blasting (D&B) for raising mine workings using the methods of blast-hole and well charges, taking into account the pressure of the explosion products, the compressive strength of rocks, their structural structure, fracturing and compaction under the influence of rock...

Purpose. Obtaining the main initial experimental data to establish a set of calculated dependencies for determining the parameters of the process of hydrodisintegration by boreholes of rich martite ore deposits, for further designing an industrial mine site for hydraulic mining by boreholes and a production technological complex for actual mining....

Purpose. Investigate changes in the amount of deformation of the rock array of the hanging and lying sides in the unloading zones of the drawn stopes of the first and second stages of processing. Methods. Analytical studies of the areas of rock mass deformation around the drawn stopes of the first and second stages of development were carried out u...

Purpose. Development of a new methodology for calculating the parameters of drilling and blasting (D&B) for horizontal and inclined mine workings, taking into account the pressure of the explosion products, the compressive strength of rocks, their structural structure, fracturing and compaction under the action of rock pressure. The methodology of...

Purpose. Improving the quality of the mined ore mass and reducing the operating costs for the extraction of minerals by taking into account the geomechanical state of the ore-rock massif. Methods. A complex method that includes analysis and generalization of previous studies, mine instrumental observations, numerical modeling by the finite element...

Using the theory of elasticity and the main provisions of the quasi-static-wave hypothesis of the mechanism of the destruction of a solid medium under the action of an explosion, analytical modelling of the parameters of the formation of crumpling zones and crushing of the rock mass around the charging cavity during its explosive loading was carrie...

Experimental methods for determining a performance index of explosives are analysed: the methods of a ballistic pendulum, ballistic mortar, a lead block, and according to the volume of soil explosion funnel. It is defined that the determination of a performance index of emulsion explosives (EE) involves a set of significant features connected with...

Purpose. Study and development of a rational methodology for calculating the parameters of the process of downhole hydrodisintegration of martite ore massifs by pressure rotating water jets. Methods. Mine experimental-methodical and experimental-experimental works on: stage-by-stage study of the engineering and geological situation of ore deposits...

Purpose. To develop a methodology for calculating the rational parameters for walling development waies, taking into account changes in the stress state of the massif in the unloading zones of the drawn stopes of the first and second stages of mining. Methodology. To determine the patterns of stress distribution around the fringedrifts of the lying...

Laboratory and industrial studies have established the total impact of environmentally hazardous substances, taking into account the distance from the source of emissions and the specific consumption of explosives. With the help of physicochemical analysis and biological testing, the dependence of the change in the conditional indicator of damage t...

Purpose. Improving the parameters of the rock mass destruction zones by a blasting, depending on the pressure of the explosion products in the charging cavity and the physical and mechanical properties of rocks by combining analytical and numerical mathematical simulation. The methodology of research. Using the theory of elasticity and the main pro...

Purpose. Development of a methodology for calculating the parameters of drilling and blasting (D&B) for rise working methods of borehole and blast-hole charges, taking into account the diameter of the charge, the detonation characteristics of explosives (EX), the physical and mechanical properties of rocks, their fracturing and compaction under the...

Purpose. Improvement of the current methodology for calculating the parameters of drilling and blasting (D&B) by determining the explosive force by the degree of realization of the detonation velocity for all types of industrial explosives (IE). The methodology of research. To solve the problem, a systematic approach was used, including an analysis...

Purpose. Establishment of economical-ecological efficiency of the use of emulsion explosives (EEX) in underground mining of ores using various mining equipment. The methodology of research. Using the correlation-regression analysis of the obtained calculated data, exponential dependences of the cost of carrying out 1 m3 of horizontal development dr...

The basic information on production processes which are carried out at the mining enterprises is considered and their classification is resulted. The processes of horizontal and vertical of drifting of mine workings are described in detail. The processes of conducting actual mining are considered, which are connected with ore breaking, delivery and...

The calculation of economic efficiency during the preparatory mine operations using various mining equipment and types of explosives was performed. The general exponential regularity of determining the cost of carrying out 1 m3 of working depending on the strength of rocks to compression when using different types of explosives and tunneling equipm...

Purpose. To establish the analytical regularity of the calculation of the maximum value of the line of least resistance (LLR) of the explosive (E), taking into account the physical and mechanical properties of the rock mass and the detonation characteristics of the explosive. The methodology of research. Numerical modeling by the finite element met...

Purpose. To develop a method for calculating the change in the density of emulsion explosives (EE) along the length of the charge column under the action of hydrostatic pressure at different angles of inclination of the boreholes and to examine the change in the detonation velocity along the charge. The methodology of research. Using the well-known...

Waste from mining and metallurgical production (waste rock, ore out of balance in terms of metal content and heap leaching tailings, which contain natural polluting materials), are usually stored on the surface in dumps. During the extraction and primary processing of 1 ton of commercial ore, 1.4–1.6 tonnes of waste are simultaneously extracted, wh...

The article presents the main results of the analysis of the current state of production and the market of uranium raw materials over the past 10 years. It is shown that the current state of the production and processing of uranium raw materials is sufficient to meet the needs for nuclear fuel in the short term. World uranium production peaked in 2...

The article provides a substantiation of the stability of energy-disturbed underworked rock masses using geophysical and mine-surveying methods based on the results of predicting the development of rock pressure. This allows predicting the stress-strain state of the rock mass with sufficient detail\as well as adjusting the development parameters to...

Waste in the mining and metallurgy industries (barren rocks, low-grade ore and heap leaching tailings, which contain natural impurities) are stored as a rule in piles on ground surface. Mining and pretreatment of ore extracted from structurally complex bodies results in 1.4–1.6 t of waste per 1 t of marketable ore, which generates the environmental...

Modeling of rock mass destruction by explosion allowed to obtain mathematical models of the formation of crushing zones, intensive grinding and crack formation, which are formed around the charging cavity in the rock mass with taking into account the diameter of the charging cavity and the diameter of the explosive charge, detonation compaction of...

Mathematical models of the formation of breaking zones, intensive grinding and cracking, which are formed around the charging cavity in the rock massif with taking into account the action of rock pressure and energy characteristics of the explosives were created based on the results of modeling of the action of the explosion in a solid medium. Nume...

The paper presents the main scientific and practicalresults of research in the field of assessing the geomechanicaland environmental safety of the development of near/surfaceore reserves in energy/disturbed massifs using complex me/thods and geomechanical and hydrogeological monitoring ofunderground geotechnical systems of deposits of complexstruct...

В статье обосновано создание энергетической теории горного давления на базе синергетических методов исследования, позволяющих использовать геоэнергию при подземной разработке месторождений. Установлены показатели зонального структурирования массива вокруг выработок, выполненного с помощью промышленных, лабораторных и теоретических исследований напр...

Problem Statement (Relevance). In recent years, emulsion explosives of domestic production became wide-ly introduced. They are safer in operation and surpass TNT-containing explosives in their energy characteristics. This is an urgent task at the present stage of development of the world's mining enterprises. Methods Used. The authors de-scribed th...

Purpose. Development of a method for calculating the parameters of blasting works for mining, considering the physical and mechanical properties of rocks, energy characteristics of explosives (explosives), crack-mass of the massif and the action of rock pressure. Methods. The paper uses a comprehensive methodological approach, which includes the de...

Мета. Створення високопродуктивної технології розробки багатих залізних руд із комплексним застосуванням самохідної гірничої техніки в умовах глибоких горизонтів шахти Батьківщина» ПАТ «Криворізький залізорудний комбінат». Методика. У роботі використано наступні методи дослідження: аналітичний при аналізі гірничо-геологічних та гірничотехнічних...

The object of research is traditional mining technologies and technical means in combination with underground block leaching (UBL) of metals from rock ores with their preliminary crushing with explosives in installations mounted in mine workings. One of the most problematic areas is the difficulty of achieving a given crushing quality, as well as t...

The article provides a justification for improving the efficiency and environmental safety of combined geotechnologies for the development of ore deposits by justifying the parameters of mining operations for underground block leach (UBL) of metals in installations mounted in mine workings with UBL. This will ensure the protection and rational use...

The main scientific and practical results of studies of mining and technical and environmental safety of the development of deposits in a complex structure based on rational use, protection of subsoil, the environment and the population living in the zone of influence of mining are described, which are becoming more and more acute due to the irrepl...

Purpose. To develop a new theory for the rocks destruction by blasting using a description of the formation processes of zones with various mass state around the charging cavity. Methods. The new theory for the rock mass destruction by blasting has been developed based on the use of the well-known elasticity theory laws and the main provisions of t...

Development of a new procedure for calculating the density of emulsion explosives (EE), that will allow determining the detonation velocity along the charging length, depending on the inclination of boreholes during ore breaking. Methodology.A calculation method for the redistribution of EE density and mass in boreholes at different angles of incli...

The basic scientific and practical results of underground development of the accompanying ore and non-metallic minerals on the examples of decorative jaspils and gray granites in the energy-disturbed rock zones on the iron and manganese-ore deposits of Kryvorizhsky Iron and Ore and Nyzognoznogo-Ore deposits are presented. The innovative technologie...

The article discusses drill and blast pattern designs for ore treatment before in-situ leaching (ISL) in ore bodies of complex structure with a view to ensuring ecological safety, en-hanced ISL efficiency, as well as balanced subsoil protection and management. This is achiev-able using cut-and-fill method with cemented backfill of different composi...

The main scientific and practical calculations used to increase the efficiency of vertical mine workings based on studying the operation of tunneling complexes and road-heading machines, as well as by sectional blasting of the deep wells are presented in the article. This will ensure high-quality mine workings in accordance with the design and impr...

Drilling and blasting operations (D&B) are the most difficult and laborious operations in the process of mineral extraction, requiring permanent development and upgrading of methods and equipment. The aim of the study is to substantiate the parameters of drilling and blasting drivage of horizontal and inclined (up to 12o) mine workings on the basis...

The main scientific and practical results of the study oftechnologies and technical means for drilling and blastinghorizontal and inclined (up to 120) mine workings based onhigh/performance self/propelled drilling, loading and deliv/ery and auxiliary equipment taking into account the study ofchanging geomechanical, mining and hydro/geological con/d...

Выполнен анализ злаковых культур и основных продуктов из них. Проанализированы виды круп, их состав и особенности приготовления. Изучен химических состав муки, ее сортность и производство. Представлены особенности приготовления теста, основные добавки и популярные рецепты. Приведен состав и виды макаронных изделий и бобовых культур. Виконано аналіз...

Україна має в своєму розпорядженні значні запаси вугілля, руд, калійних солей та інших корисних копалини. Останніми роками, не зважаючи на збитки, які наніс економічний спад виробництва, особливо вугільним шахтам Донбасу та підприємствам гірничого машинобудування, гірнича промисловість починає виходити із кризи. Кам'яне вугілля за запасами й обсяга...

Сьогодні розробка покладів багатих залізних руд на підземних рудниках ПАТ «Криворізький залізорудний комбінат» здійснюється в межах глибин 1300-1400 м під значною дією гравітаційних полів напружень з переважним використанням систем підповерхового обвалення із застосуванням морально застарілого, низькопродуктивного стаціонарного та переносного гірни...

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 massif breaking by an explosion. According to the characteristics of the types of stress waves, deformations and fractures of th...

The article describes methods of generalization, analysis and evaluation of practical experience and scientific achievements in the field of drilling and blasting destruction of solid media, mechanics of continuous media, mathematical statistics, as well as research methods of wave processes. The technique of substantiating the blasthole parameters...

The article presents the main scientific and practical results of improving technologies and technical means for drilling and blasting horizontal mine workings in rock massifs obtained on the basis of the results of studying the changing geomechanical, mining and hydrogeological conditions of the field. mathematical modeling of BWR parameters and n...

The object of research is the technology and technical means for underground mining of ores in energy disturbed massifs of complex structure. One of the most problematic areas is the formation of man-made voids, which affect the emergence and redistribution of the stress-strain state (SSS) of the rock mass. Their existence in the earth’s crust prov...

The paper represents the analysis, which has helped to determine tendencies of the formation of energy resource complex based on the available mining facilities. The approach helps prolong operating life of the mine with the depleted balance reserves or the one being under abandonment. The proposed technologies of generator gas production by anaero...

Изложены основные научные и практические результаты разработки и внедрения новых технологий и технических средств для крепления горных выработок с использованием геоэнергии, позволяющие использовать максимальное количество энергии, генерируемой в предохранительной капсуле с экономией ресурсов. Показано, что энергия предохранительной капсулы, сформи...

Об’єктом дослідження є природоохоронні та ресурсозберігаючі технології та технічні засоби для переробки та утилізації техногенних утворень і відходів при підземній розробці родовищ корисних копалин із закладкою виробленого простору. Одним з найбільш проблемних місць є управління станом рудовміщуючих енергетично порушених масивів і доставка твердіюч...

The object of research is environmental and resource-saving technologies and technical means for the pro-cessing and disposal of man-made formations and waste in the underground mining of mineral deposits with backfilling of the worked-out space. One of the most problematic areas is the management of the state of ore-containing energy-disturbed mas...

In the course of the study, the following were used: data from literature sources and patent documentation in the field of technologies and equipment for underground mining of ores in energy disrupted arrays, substantiation of technologi cal parameters of operating units; laboratory and production experiments; physical modeling and selection of har...

One of the most problematic aspects in underground ore extraction in mining-disturbed rock masses is back-filling of man-made voids, which affect origination and redistribution of stress-strain state of the rock mass. Their ex-istence in the earth's crust provokes subsidence/collapse of the day surface and also contributes to arising geomechanical...

The object of research is environmental and resource-saving technologies in underground mining of mineral deposits with the laying of the developed space. One of the most problematic places is the delivery of hardening filling mixtures to the place of their installation and the lack of components for their preparation. This increases the importance...

Об’єктом дослідження є технологія та технічні засоби для погашення порожнеч під час підземного видобутку руд в масивах, що енергетично порушені. Одним із найбільш проблемних місць є погашення техногенних порожнеч, які впливають на виникнення та перерозподіл напружено-деформаційного стану (НДС) масиву гірських порід. Їх існування в земній корі прово...

The aim of the work is to improve the thermomechanical absorption insulation technology horizons of drilling wells by the established regularities of change and the substantiation of its regime parameters from the composition and physical-mechanical properties strengthen thermoplastic composite material and, on this basis, development a technologic...

Об’єктом дослідження є технологія і технічні засоби для підземного видобутку руд в енергонарушенних масивах. Одним із найбільш проблемних місць є утворення техногенних порожнеч, які впливають на виникнення і перерозподіл напряженно-деформаціонного стану (НДС) масиву гірських порід. Їх існування в земній корі провокує вплив геомеханічних і сейсмічни...

Purpose. To evaluate the change in free energy in the transition from the nonequilibrium state of the rock to the equilibrium. This process implements the process of dynamic brittle fracture on the structural defects of the rock as a micro­inhomogeneous medium. Methodology. It included conducting, within the framework of statistical thermodynamics,...

Purpose. Reduce the cost of preparing pillars up to 3000 m in length. Methods. The analytical method of research was used to analyze the mining-geological conditions of the field development, the production situation for the development of mining operations and the conditions of application of the field method of preparation. The method of options...

Цель. Раскрыть физическую сущность явления зональной дезинтеграции горных пород вокруг подземных выработок. Методика. Основными видами исследования приняты синергетический методологический поиск и анализ открытых термодинамических систем в неравновесном состоянии. Результаты. Раскрыта физическая сущность явления зональной дезинтеграции горных пород...

Underground mining of ore deposits features worsening of geological and geotechnical conditions, exclusive standards of environmental protection and subsoil conservation as well as more stringent requirements of life safety in the influence zones of mining. This study focuses on higher efficiency of confined blasting through justification of blast...

У даний час одними з основних напрямків економічного та соціального розвитку України є збільшення обсягів видобування вугілля, поліпшення його якості та підвищення ефективності роботи вуглевидобувної галузі. Після кризи 2014 року та падіння у 2015-му, український ринок видобування вугілля досі переживає певні труднощі. Отже стратегічним техніко-еко...

The analysis has been made of the technical parameters of the existing passport for drilling and blasting operations (DBO) in terms of compliance with labour safety requirements and scientific-technical standards. The methodology for constructing the DBO passport has been developed, which takes into account the areas of blast-hole groups and the pr...

Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well as physical and mechanical properties of rocks. Methods. The integrated methodological approach including analytical transforma...

Improving of seismic safety of rocky deposits underground mining is an important scientific and social task. Among possible methods of its solving, application of new explosive materials occupies an important place. Main scientific and practical results of the study in this area presented. An analysis of previous studies and control observations, i...

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 by means of a new method of research – the entropy one. The research on processes of redistribution of potential energy in the...

Loss of drilling fluid in wells is one of the most important drilling challenges. To prevent this problem an insulation of borehole wall is requiring. The results of study of an innovative technology of isolation of borehole using a new thermomechanical plugging material are presented herein. The material considered is solid composite consisting se...

Приведены основные научные и практические результаты исследований повышения горнотехнической безопасности проведения подземных выработок на основе процессов структурирования массива в условиях зональной дезинтеграции горных пород вокруг подземных выработок с помощью моделирования на эквивалентных, оптико-поляризационных и электропроводных материала...

The basic scientific and practical results of rational use and protection of subsoil under underground mining of ore deposits in the conditions of technogenesis are based on reliable geo-logical and surveying and geomechanical support, taking into account the stability of rock masses and the dimensions of the contour energy zone. It is recommended...

Abstract. The main scientific and practical results of studies related to mine technical safety improvement for the underground workings based on the processes of structuring the massif under the conditions of rocks zonal disintegration around the underground workings using the methods of equivalent, optical polarization and electrically conductive...

The main scientific and practical results of safety improvement of the granite development at the manganese ore deposits of Ukraine in energetically fractured zones of rock massifs are described based on the example of the development of the reserves of Nikopol basin. In this case, the improved methods were used concerning mining, laboratory and ma...

Приведены показатели построения рационов белкового питания. Проанализированы количество, состав и свойства белков в структуре сбалансированного питания. Выполнен анализ мясных продуктов по содержанию жиров, углеводов, витаминов, ферментов, минеральных веществ. Раскрыта ценность мяса домашних животных, птицы, рыбы. Описаны признаки заболеваний и мет...

Первый в Украине образовательно-научно-производственный портал «Рудана» (rudana.in.ua) объединил интересы широких кругов производственников, исследователей, преподавателей, студентов, учащихся и всех неравнодушных к прошлому, настоящему и будущему горнорудного дела в мире. По средствам общения в реальном времени на портале организовано сотрудничест...

The analysis of formation of wave astrodynamics as the applied science that studying zonal-andwave structure of megasystems in the Universe is executed. The perspective of disclosure of physical essence of the phenomenon of rocks zonal disintegration around underground mine workings is analysed. The results of a research that received by means of w...

МА́РГАНЕЦЬКИЙ ГІРНИ́ЧО-ЗБАГА́ЧУВАЛЬНИЙ КОМБІНА́Т – підприємство марганцеворудної промисловості. Розташ. у м. Марганець Дніпроп. обл. Створ. 1970 на базі підприємств тресту «Нікополь-Марганець» (засн. 1934), до складу якого входили: Грушів. рудоуправління – 7 шахт, Басан. кар’єр і збагачув. ф-ка; рудоуправління ім. 40-річчя Жовтня – 2 шахти; Грушів....

МАРГАНЦЕВОРУ́ДНА ПРОМИСЛО́ВІСТЬ – галузь гірничої промисловості, підприємства якої видобувають марганцеві руди та здійснюють їхню початкову обробку (подрібнюють, сортують, збагачують, усереднюють). М. п. – сировинна база чорної металургії та кольорової металургії. Види діяльності: підземна та відкрита розробки, збагачення марганц. руд, видобування...

Statement of the problem (relevance of the paper): the paper describes main scientific and practical results of studies on increasing geodynamic safety, while increasing the depth of underground mining of ore deposits, using operational control data and the forecast for the stressed state of the rock mass with various dynamic signs of rock pressure...

Underground mining of ore deposits is characterized by deterioration of mining and geological and mining technical conditions, increased requirements for the protection of the environment and subsoil, as well as the safety of human life in the zone of influence of mining facilities. Purpose of work. Creation and implementation of resource-saving te...

The content of the publication corresponds to the educational-professional program of preparation of bachelors of specialty 184 Mining, in particular the program of educational discipline “Technology of underground mining of ore deposits”. The main provisions of underground mining of ore deposits are given, production processes, technologies of co...

Цель работы - разработать эффективный подход к определению параметров расположения глубоких скважин, который бы учитывал напряженное состояние массива руды в процессе отбойки слоев. В качестве основного метода выполнения исследований принят энергетический метод. В результате моделирования и сравнения полученных результатов с данными производственно...

Purpose of study – improvement of filling systems fordeep ore mine depth.The studies have been undertaken forimprovement of filling systems for deep ore mine depth andwith purpose to increase the safety level of subsoil miningactivities. A general method of determination of parametersfor retention of drill drift stability, installed in the vicinity...

Подземная разработка месторождений черных и цветных металлов в большинстве стран-производителей рудного сырья сопровождается в 90% случаев использованием буровзрывного способа проведения горных выработок. Это связанно с высокой прочностью пород, превышающую 120 МПа. Сама же скорость проведения выработок зависит от правильного составления и расчета...

По производству товарных железных руд Украина занимает 7-е место в мире, уступая лишь Китаю, Бразилии, Австралии, Индии, Российской Федерации и США. Частное акционерное общество «Запорожский железорудный комбинат» (ЧАО «ЗЖРК») работает на базе Южно-Белозерского месторождения и разрабатывает богатые железные руды с помощью камерной системы разработк...

The perspective of discovery of zonal disintegration phenomenon of rocks around underground mine workings is analyzed. The methodological stages for research of this phenomenon are shown. The physics of zonal disintegration of rocks around underground mine workings is disclosed. There are described the possibilities of advanced entropy method and d...

The paper outlines the results of field, laboratory, and theoretical studies on geotechnical parameters of uranium in-situ leaching (ISL) for hydrogenous deposits located in eastern Mongolia. The field and laboratory studies included drilling, geophysical surveying, testing and evaluation of mechanical and flow properties of uranium-bearing rocks,...

The analysis of emulsion explosives application during underground mining operations is execut-ed. The reasons that constraining implementation of emulsion explosives into production are de-fined. The method of calculation of drilling-and-blasting passports on zones of contortion and fracturing around boreholes charges is offered for increasing eff...

The analysis and systematization of geodynamic conditions of underground mining of ore deposits in Ukraine is executed. The issue of description of natural condition of rocks in world practice is enclosed. Classification of methods of rock massifs energy condition is composed and ways of development of new hypotheses, theories and methods are descr...