Количество страниц: 8 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
The work is dedicated to cryolitezone pit wall stability problem solution by heat mass exchange processes controlling on quarry face surface with hydro and thermal isolation application. Two-dimensional mathematic model of heat exchanging processes in filtration quarry face rock mass is worked out, considering moisture phase change and heat transfer by water filtration. Mathematical model allows to forecast temperature field forming process in quarry face rock mass depending on parameters: climatic conditions (ambient air temperature change dynamics, snow thickness, wind speed, rain intensity), rock thermophysical and filtrational properties, quarry face constructional features (quarry face geometry, slope angle), thermophysical properties and geometrical dimensions of quarry face surface thermal isolation. Developed mathematical model solved by numerical method, namely finite-difference method, and realized in the form of Microsoft Windows OS-based application. The research results of bench edge hydro-thermal insulation parameters influence to reduction of wrecking temperature and humidity influence of environment to opencast bench are presented. Studies showed, that by controlling of edge hydro-thermal insulation parameters it is possible to keep frozen state of rock mass under bench edge during a year.
Романова, Е. К. Регулирование теплового режима прибортового породного массива карьера криолитозоны с помощью гидро- и теплоизоляции / Е. К. Романова, А. С. Курилко, Ю. А. Хохолов // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 379-386.
Количество страниц: 8 с.
Article is devoted to application of a nanocomposite of cubic Boron Nitride (further nanoСNB) in drill bits for a driving of prospecting wells on solid minerals. It is experimentally shown that copying of designs of known hard-alloy tools with the acting cutters can't be accepted as a way of improvement of drill bits. It is also shown that is more preferable as analog, a design impregnated diamond bits, where diamond grains are interspersed in volume of a matrix of a drill bit and are to some extent protected by it from shock loadings. Accordingly, it is proposed to install the cutters, so they do not go beyond the path of the shell drill bits. In this case, the cutters are uncovered, as diamonds impregnated ceramic crowns, as the butt drilling bits in accordance with the properties of rocks of face and drilling parameters. This idea is embodied in a new drill bits which cutters represent the replaced quadrangular plates from nanoСNB, fixed in the case of a drill bit by wedge clamp. The drill bit is intended for drilling of prospecting wells in breeds with strength of VII-IX categories on drilling capacity.
Федоров, Л. Н. Разработка конструкций буровых коронок с резцами из нанокомпозита марки CBN MBR 7010 / Л. Н. Федоров, С. А. Ермаков // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 371-378.
Количество страниц: 5 с.
- Математика. Естественные науки > Геология. Геологические и геофизические науки,
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > МАТЕМАТИКА. ЕСТЕСТВЕННЫЕ НАУКИ > Геология. Геологические и геофизические науки,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
The article shows the relevance of studying the cracks of the rock mass in the alluvial deposits of the permafrost zone. Noted drawbacks of existing methods for assessing fracture rocks. For accurate and timely information about the fracturing of the rock mass under study proposes the use of GPR (the method of high-frequency electrical). Examples of the results of GPR sounding crack of a different order (2 cm wide and 10 m), covered with loose sediments and located at a depth of 10 cm and 6 m. The studies were conducted GPR ҺOKO-2Mһ with AB-1200 and AB-MHz to 50 MHz. Presented georadar cut resulting from the alluvial diamond deposit located within Olenek uplift the Republic of Sakha (Yakutia), which illustrates the possibility of mapping bedrock roof, broken as a result of tectonic movements. This revealed the different types of faults (mikrograbeny, mikrogorsty, cracks, faults).
Соколов, К. О. Опыт применения георадиолокации для исследования разрывных нарушений на россыпных месторождениях криолитозоны / К. О. Соколов, Н. Д. Прудецкий // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 333-337.
Количество страниц: 8 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом,
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Управление предприятиями. Организация производства, торговли и транспорта,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Управление предприятиями. Организация производства, торговли и транспорта.
In this study, the developed complex software for GPR studies in monitoring mode is considered. The complex is focused for use for examination of the roadway by GPR OKO-2 (LLC ҺLogisһ). Binding GPR data to the coordinate system is carried out by the GPS receiver. Recording and processing of field materials is the software (SOFTWARE) ҺGeoScan 32һ (LLC ҺLogisһ). The results of testing the developed software according to seasonal GPR investigations on the highway ҺVilyui tractһ (Yakutsk) are received. The level of interaction of separate blocks of the developed complex is estimated and its completion is made for increase of accuracy of a geographical binding of the analyzed data. The possibility of work in monitoring and mapping of the actual condition of the subgrade on a long stretch of road, which allowed to reveal seasonal changes of properties of soil subgrade and the destruction of the pavement at early stages is shown. The developed complex software for GPR studies in monitoring mode allows you to automate the process of collecting, storing and processing information, including GPR, gridded for qualitative analysis of soil bases of highways, operated in permafrost.
Основы информационно-программного обеспечения георадиолокационных исследований состояния грунтов автодорог криолитозоны в режиме мониторинга / Л. Л. Федорова, М. П. Федоров, А. С. Стручков, Д. В. Саввин // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 325-332.
Количество страниц: 5 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
Examines the impact of thawing on the stability of mine workings circular cross-section in permafrost considering the variation of elastic and strength properties of rocks on their temperature. Mathematical modeling showed that the dissolution of carbonate rock rocks facilitates unloading of stresses on the contour generation and stability of mine workings, passed in permafrost increases.
Слепцов, В. И. Численное моделирование процесса деформирования многолетнемерзлого массива вблизи выработки круглого сечения при изменении деформационных и прочностных свойств горных пород от температуры=Numerical simulation the deformation of a permafrost array near the generation of circular cross-section when you change the deformation and strength mining properties rocks on temperature / В. И. Слепцов // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 320-324.
Количество страниц: 9 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Санитарная техника. Санитарно-технические сооружения. Водоснабжение,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Санитарная техника. Санитарно-технические сооружения. Водоснабжение.
This article presents the results of mathematical modeling of processes accompanying infiltration of highly mineralized solutions in frozen rock mass. Simulation is carried out taking into account the phase equilibrium highly mineralized solutions and the volume defect caused by ice melting into pores. It is found that the process of moving the lens brine accompanied by destruction of ice formation. The speed of the lens is determined by the diffusion penetration of the solution in the ice shell surrounding the lens. Influence of brine results in increased free of volume within the pores by phase transformation of ice-water. This factor determines the destructive processes in the frozen rocks.
Попов, В. И. Моделирование деструктивных процессов при фильтрации агрессивных флюидов в горном массиве=Simulation of destructive processes in the rock during filtration of aggressive fluids / В. И. Попов // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 311-319.
Количество страниц: 11 с.
- Математика. Естественные науки > Физика,
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > МАТЕМАТИКА. ЕСТЕСТВЕННЫЕ НАУКИ > Физика,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
Mathematical model of ventilation air and rocks heat mass exchange processes in cryolitezone extensive mine workings, with moisture vaporization and condensation taken into account is proposed. Working’s equivalent radius sets, equation derived in cylindrical coordinates. Internal radius of the area corresponds to working’s radius, while outer radius is taken from spreading condition of heat influence zone around the working for taken temporal period. Energy conservation equation in working derived with air velocity and ribside heat exchange taken into consideration. In case working’s air temperature drops below dew point, moisture condensation occurs. Working’s surface vaporizing processes calculated with Lewis correlation taken into account. Moisture phase change in rocks around the working taken into consideration. Mathematical model is numerically solved by finite difference method. It is shown, that mass exchange processes in summer neglecting leads to significant miscalculation. Developed model numerical implementation allows to calculate ventilation air temperature and it’s relative humidity variations dynamics subject to working’s hydrothermal conditions, that is important to mines thermal conditions prognosis and mining safety providing.
Курилко, А. С. Математическая модель тепломассообмена вентиляционного воздуха с горными породами в протяженных горных выработках рудников и шахт криолитозоны с учетом испарения и конденсации=Mathematical model of ventilation air and rocks heat mass exchange in cryolitezone mine workings with vaporization and condensation, taken into account / А. С. Курилко, Ю. А. Хохолов // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 300-310.
Количество страниц: 7 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
To identify behavior of solid particles in the fluid flow is necessary for optimization of mineral processing in the aquatic environment. When studying the behavior of flat particles in the fluid flow in a curved tube the researchers of the Mining Institute SB RAS revealed a phenomenon where upon reaching a certain position in the curved part of a tube, the particles turned across the stream and were carried away outside of the tube. In this work, we developed physical and mathematical models of such phenomena. The condition of limit equilibrium of a flat plate on an inclined plane in the fluid was obtained. We also obtained the conditions for the occurrence of oscillations of the plate on an inclined plane in the fluid flow before the reversal and the beginning of a reversal of the plate.
Григорьев, Ю. М. Моделирование поведения уплощенных частиц золота в потоке гидросмеси в изогнутой трубке=Mathematical modeling of a movement of flat particles in the fluid flow inside a curved tube / Ю. М. Григорьев, Н. С. Шеин, И. А. Матвеев // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 265-271.
Количество страниц: 5 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
A method for processing of concentrates magnetic which consists in separating the gold when jigging in magnetic fields. In the proposed method in the jig by a combination gravity concentration and magnetic separation, resulting in a combined enrichment significantly reduced the volume and quality of gold-bearing concentrate chamber.
Слепцова, Е. С. Извлечение золота из магнитных шлихов отсадкой в поле действия полюсопеременного магнитного поля=Gold recovery from the concentrates magnetic jigging a magnetic field / Е. С. Слепцова, С. М. Федосеев // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 260-264.
Количество страниц: 8 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры),
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Инженерное дело. Техника в целом > Горное дело. Горные предприятия (рудники, шахты, карьеры).
Oxidation of solid fuels closely connected with the questions of changes in the quality of this type of fuel. Spontaneous oxidation not only reduces the quality characteristics of coals, but also lead to their self-ignite. However, in recent decades conducted studies show that the directional oxidation raw coal with different reagents and methods may be regarded as the pretreatment and leads to a noticeable changes in their structure and compositions. Directed oxidation makes it possible not only to expand the the conditions of the recycling process, but also to obtain products with a variety of properties. The article notes that the difficulty of studying the mechanism of oxidation of the organic mass of coal consists in the complexity and ambiguity of the structure of the composition and structure of matter coals (organic and inorganic) and the method of studying this process becomes an experimental statistical character with the release of the general laws. The results of experimental studies of the effect of preliminary oxidation the organic mass of brown coal of Kangalassky deposit various chemicals to determine the degree of influence of this process on the efficiency of their processing into humic substances. The reagents were used as inorganic and organic oxidizers in different concentrations. The greatest effect is to increase the yield of humic acids marked when used the oxidation of hydrogen peroxide at a concentration of 6-10%, as well as hydrochloric acid at a concentration of 10%. The results of experimental studies on the effect of preliminary oxidation of coal may be the basis for developing a new method of processing of brown coal in humic substances.
Москаленко, Т. В. Окислительное воздействие на Кангаласский бурый уголь для повышения выхода гуминовых кислот=Oxidative impact on brown coal of Kangalassky deposit to increase the yield of humic acids / Т. В. Москаленко, В. А. Михеев // Горный информационно-аналитический бюллетень. – 2015. – N S30. – C. 220-227.