Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
A significant portion of the world’s oil and gas reservoirs is in various degrees of unconsolidation with extensive sanding problems. The problems are observed in both production and injection wells in the oil industries. Similar problems are observed in CO2 injectors and wastewater injectors in CCS (Carbon Capture Storage) and wastewater management industries. These problems include plugging the perforations and formations of production and injection wells, plugging the downhole screens and the gravel pack, surface facility erosion, and collapse of borehole and cased hole. On the other hand, the controlled volume of sand production significantly increases the well productivity and injectivity for both light and heavy oil reservoirs. <...>
The process commonly called going underground has been very well observed recently around the world. In short it means rather rapidly developing transference of numbers of even highly civilized human activities to the underground space. Geosphere, having been traditionally used as source of energy and raw materials, has now become the space where any anthropogenic activity could be placed and realized.
During mining for mineral resources and the erection of subterranean constructions one has to deal with a medium that is extremely complex in composition and has diverse mechanical properties and laws of deformation. To achieve these objectives one is compelled to utilise a large set of technological schemes and types of mine workings. In spite of the vast scale on which mining work and related scientific investigations are carried out, the development of mineral resources is such a complex problem that no unique laws have been defined to date to describe the behaviour of rock massifs which might be disturbed during mining operations or when they interact with engineering structures.
The first international workshop on soil crushability was held in Sheffield, U.K. on September 1997 and was the origin of a subsequent series of meetings starting with the “International Workshop on Soil Crushability” IWSC’99 atYamaguchi University in Ube, Japan on July 1999. As a result of these workshops, the research area widened from soil crushability to a re-assessment of fundamental aspects of soil mechanics theories using micromechanics.
Rock mechanics is a subject that is not commonly present in most undergraduate civil engineering curriculums worldwide. It is sometimes taught as
an elective subject in the final year of the bachelor’s degree program or as a postgraduate subject. Nevertheless, civil and mining engineers and academicians would agree on the usefulness and the value of some exposure to rock mechanics at the undergraduate level. Ideally speaking, engineering geology
Армянские и венгерские ученые издавна поддерживают между собой тесные научные связи. В результате подписания Соглашения между Академией наук Армянской ССР и Венгерской Академией наук о прямом научном сотрудничестве в области естественных и общественных наук в апреле 1968 года, эти связи приняли официальную форму. Зто Соглашение неоднократно пролонгировалось и действует по настоящее время. Научное сотрудничество академий позволяет объеденить научные и технические возможности обеих сторон. Соглашение предусматривает проведение совместных исследований по важнейшим проблемам современной науки, В 1971—1975 годах подобные работы проводились в области геомеханики по теме: "Устойчивость склонов и медленная деформация грунтов". <...>
Монография посвящена теоретическим и прикладным вопросам разрушения горных пород при сжатии. Разрушение пород рассматривается по схеме: анализ разрушения образцов пород; описание результатов наблюдений отрывного разрушения пород в горных выработках; разработка математических моделей развития трещин отрыва; моделирование отрывного разрушения; общение результатов моделирования в отношении прогноза разрушения пород в выработках.
Главное внимание уделено вопросам развития трещин отрыва в скальных породах в масштабе выработок. Рассматривается участие в отрыве таких факторов (природных и искусственных), как газ и вода
Для научных работников, специализирующихся в области разрушения горных пород и проблем горного давления. Может быть полезна аспирантам и студентам горных вузов, знакомящихся с проблемами геомеханики
Исследованы общие закономерности формирования поля напряжений вокруг подземных камер и камер специального назначения в плоской и объемной постановках. В работе использованы методы конечных элементов и потенциала.
Для студентов, научно-педагогических и научно-технических сотрудников высших учебных заведений, научно-исследовательских институтов и проектных организаций, а также для инженерно-технических работников горной промышленности.
Our experience as teachers indicates that a traditional format where the instructor provides students with theoretical knowledge through a series of lectures and abstract textbook problems is not sufficient to prepare students to tackle real geotechnical challenges. There is a disjunct between what students are taught in universities and what they are expected to do as engineers. Although students may easily derive complex equations in class, they often struggle when faced with practical engineering problems in the workplace. It is thus not surprising that a project-based approach to learning, which partially simulates what engineers do in real life, has proved to be a valid alternative to the traditional method (Gratchev and Jeng, 2018; Gratchev et al., 2018). Project-based learning not only provides students with opportunities to better understand the fundamentals of geotechnical engineering, but it also allows them to gain more practical experience and learn how to apply theory to practice. In addition, working on a practical project makes the learning process more relevant and engaging. <...>
