THEORY AND PRACTICE OF PRODUCTIONS PHYSICS AND MECHANICS OF ROCKS | |
Название | Mechanism of the thermal expansion of rocks |
Автор | Goncharov S. A. |
Информация об авторе | Moscow State Mining University, Moscow, Russia: Goncharov S. A., Professor, Doctor of Engineering Sciences, phone: +7 (499) 236-71-12 |
Реферат | This paper notes, that minerals of polymineral rocks have different thermal expansion coefficients. In addition, the same minerals of monogene and polymineral rocks have different thermal expansion coefficients by various crystallographic axises. This paper researches the thermal widening mechanism of polymineral rocks. The basic factors and their thermal weakning appropriatenesses and decreasing of energy intensity destruction are established and presented on the basis of the research results. The energy intensity of mechanical crushing and breakage of the extracted ore on special ground storages can be significantly reduced without the costs of anthropogenic energy resources, at the expence of the multiple “freesing” of this ore in winter period and its “unfreezing” in summer period. With a view to reduce an energy intensity of mechanical destruction of ore, the creation of large tonnage ore storages in the back lands of North, which have significant resources of ground areas, can be economically sound in comparison with the costs for the delivery of energy resources and manufacturing of the corresponding electric power volumes. |
Ключевые слова | Polymineral ores, thermal expansion coefficients, intergranular connections, mineral junctions, continuum thermodynamics, shearing stresses, entropy, reduction of strength and energy intensity of rocks` destruction |
Библиографический список | 1. Goncharov S. A. Termodinamika (Thermodynamics). Moscow : Moscow State Mining University, 2002, 439 p. 2. Rzhevskiy V. V., Dmitriev A. P., Goncharov S. A. et al. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh – Journal of Mining Science, 1972, No. 3, pp. 3–6. 3. Zakharov E. V. Vliyanie znakoperemennykh temperaturnykh vozdeystviy na energoemkost protsessa drobleniya gornykh porod : avtoreferat dissertatsii … kandidata tekhnicheskikh nauk (Influence of alternating-sign temperature effects on energy intensity of rock crushing process : thesis of inauguration of dissertation … of Candidate of Engineering Sciences). Yakutsk : Institute of Mining of Siberian Branch of Russian Academy of Sciences, 2011. 4. Goncharov S. A. Fiziko-tekhnicheskie osnovy resursosberezheniya pri razrushenii gornykh porod (Physical and technical basis of resource-saving with rock destruction). Moscow : Moscow State Mining University, 2007, 211 p. |
Language of full-text | русский |
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