Год выпуска: 2025
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).
This article presents the findings of experimental investigations conducted to assess the influence of alternating temperature variations on the energy consumption associated with the destruction of dolomite samples from the Internatsionalnaya pipe and limestone samples from the Mokhsogolloh quarry. The evaluations were carried out under nival conditions, involving exposure to varying concentrations of sodium chloride (NaCl) solutions, with salt concentrations ranging from 0% to 20%. The findings reveal that after five freeze-thaw cycles in a nival environment, the energy required for the destruction of dolomite from the Internatsionalnaya pipe decreased by 6% in the absence of salt (0% concentration). However, as the concentration of salt in the solution increased, the energy necessary for the destruction of the dolomite samples escalated to levels comparable to those recorded prior to the freeze-thaw cycles. In contrast, the energy required for the degradation of limestone samples from the Mokhsogolloh quarry decreased by a maximum of 15% after five freeze-thaw cycles, regardless of the salt concentration present in the solution. Thus, unlike the dolomite from the Internatsionalnaya pipe, the influence of salt concentration on the energy intensity of limestone destruction from the Mokhsogolloh quarry was not observed. Furthermore, it was concluded that nival weathering conditions have a lesser effect on the examined rock samples compared to aquatic conditions.
Захаров, Е. В.
Энергоемкость разрушения карбонатных пород в нивальных условиях при различных уровнях засоленности / Е. В. Захаров ; Институт горного дела Севера им. Н. В. Черского СО РАН // Природные ресурсы Арктики и Субарктики. - 2025. - N 2, Т. 30. - С. 231-237. - DOI: 10.31242/2618-9712-2025-30-2-231-237
DOI: 10.31242/2618-9712-2025-30-2-231-237
Год выпуска: 2021
Количество страниц: 11 с.
- Прикладные науки. Медицина. Ветеринария. Техника. Сельское хозяйство > Инженерное дело. Техника в целом > Строительство подземных сооружений. Земляные работы,
- НАУКА ЯКУТИИ > ПРИКЛАДНЫЕ НАУКИ. МЕДИЦИНА. ТЕХНИКА. СЕЛЬСКОЕ ХОЗЯЙСТВО > Строительство. Строительные материалы. Строительно-монтажные работы.
- 1. Чудинов Павел Леонидович, Фридовский Валерий Юрьевич. Применение алгоритмов машинного обучения для прогнозирования золоторудной минерализации Верхнеамгинского щелочного массива, Алдано-Становой щит = Application of machine learning algorithms to predict gold mineralizationin the Verkhneamginsky alkaline massif, Aldan-Stanovoy Shield
- 2. Природные ресурсы Арктики и Субарктики = Arctic and Subarctic natural resources, 2025, №2 (Т. 30)
The investigation into the influence of water on the mechanical properties of rocks is essential for their effective application in various fields, particularly in mining, dam construction, tunneling, and waste management. The presence of water within the pore spaces of geological materials, along with the existence of pores, cracks, and voids, plays a significant role in determining their mechanical characteristics. This study presents the results of an experimental investigation into the effects of water saturation conditions on the compressive strength of dolomite and limestone specimens, which are recognized as host rocks in the diamond deposits found in the Botuobinskaya and Dalnaya tubes. Following established research methodologies, specific water saturation regimes were selected, and mechanical tests were conducted on specimens that were saturated to predetermined levels and subsequently maintained for varying durations. The results from the three series of tests revealed the dependence of the compressive strength of dolomite on the duration of holding time. A significant effect of holding time on the material’s strength was observed, indicating that it can lead to both a decrease and an increase in strength. This phenomenon is hypothesized to be associated with a non-homogeneous distribution of water and the development of a “dry” core within the specimen. The analysis indicates that, within the framework of the “dry” core model, various fracture scenarios may develop within the material. These scenarios will affect the nature of the dependence of the specimen’s strength on holding time in a wet condition, including its non-monotonic behavior. The findings are not only fundamentally important for advancing the understanding and accurate description of the mechanisms of water interaction with rock but also have practical implications for assessing the stability and long-term durability of flooded mine workings.
Сукнев, С. В.
Влияние условий водонасыщения на прочность карбонатных пород при сжатии / С. В. Сукнев ; Институт горного дела Севера им. Н. В. Черского СО РАН // Природные ресурсы Арктики и Субарктики. - 2025. - N 2, Т. 30. - С. 220-230. - DOI: 10.31242/2618-9712-2025-30-2-220-230
DOI: 10.31242/2618-9712-2025-30-2-220-230
Количество страниц: 9 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).
Subpermafrost aquifers are distinguished by their low stratum temperatures and pressures that approximate conventional hydrostatic pressures, rendering them suitable geological formations for the organization of underground gas storage facilities in a hydrate state. The design of such facilities requires the execution of experimental studies focused on hydrate formation within porous media. This paper examines the subpermafrost aquifers located in the Vilyui syneclise, where the hydrate stability zone covers Cretaceous and Jurassic deposits, specifically terrigenous-clayey strata. The mineralogical and granulometric composition, density, porosity, and moisture content, along with the presence of clays in the porous medium, influence the conditions conducive to hydrate formation. Therefore, the investigation of hydrate formation in clayey soils is a critical component that will support the development of underground gas storage facilities. To analyze the thermobaric conditions associated with hydrate formation, the method of differential thermal analysis was employed. The samples of porous media comprised clayey soils with varying moisture content, ranging from 15% to 40%. The results indicate that in soils with a moisture content of 20% or greater, a mechanical mixture of hydrates consisting of nearly pure methane and gases with higher molecular weights is produced. Additionally, it was observed that an increase in the moisture content of clay soils correlates with a decrease in the kinetic characteristics of hydrate formation. Based on the conducted research, it can be concluded that porous media characterized by clay layers with minimal moisture content are optimal for the establishment of underground gas storage facilities in a hydrated state
Иванова И. К., Калачева Л. П., Портнягин А. С., Бубнова А. Р., Иванов В. К., Лукина Ю. В., Александров А. Р.
Равновесные условия и кинетика гидратообразования природного газа в глинистых грунтах Мархинского месторождения // Природные ресурсы Арктики и Субарктики. 2025; 30(2): 177-185. https://doi.org/10.31242/2618-9712-2025-30-2-177-185
DOI: https://doi.org/10.31242/2618-9712-2025-30-2-177-185
Год выпуска: 2025
Источник: Час досуга. - 2025. - 10 декабря (N 50-51). - С. 5.
Количество страниц: 1 с.
Год выпуска: 2025