Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
A typical debris flow is a torrential flow of a mixture of water, mud and debris that suddenly pushes ahead with a vanguard of huge, jostling and roaring boulders. It is certainly a very fearful phenomenon that causes disasters, but it is also truly a wonder of nature exciting the curiosity of researchers as to how such a phenomenon can arise. The phenomena themselves had been recognized since ancient times in Japan and given various mnemonic names to make people aware of the dangers. Although there were several detailed witness records around in 1965 when I began working for the Disaster Prevention Research Institute of Kyoto University (hereafter called DPRI), the characteristics and mechanisms of debris flows were still vague, and it was called a ‘phantasmal disaster’.
Программа DEEPSOIL предназначена для выполнения одномерного анализа отклика грунта, с ее помощью возможно осуществление: a) одномерного нелинейного анализа во временной области с созданием порового давления и без него и b) одномерного линейного эквивалентного анализа в частотной области, включая конволюцию и деконволюцию. Программа DEEPSOIL была разработана под руководством профессора Юссефа M. A. Хашаша студентами и выпускниками Университета штата Иллинойс в Урбана-Шампейн: Дуи Парком, Чи-Чин Цаем, Камило Филлипсом, Дэвидом Р. Гроховски, Дэниелом Тернером, Майклом Масгроувом, Бюнг Мин Кимом и Джозефом Хармоном. <...>
From an engineering viewpoint, the ground beneath a site can conveniently be divided into the categories shown in Table 2.1, which are based upon generalizations of its expected behaviour in construction works. These broad generalizations are, of course, limited in accuracy. But they give the geotechnical engineer a good basis on which to consider, at the start of a project, both the likely construction problems and the methods of investigation which might be used. In practice, it is found that the ground varies continuously beneath a site, and it is not often possible to find sharp transitions from one type of material to another. This then, calls for more refined, systematic, description and classification of soils and rocks.
Originally, this book was the first attempt to synthesize knowledge on the theory, methods, and applications of digital terrain analysis in the context of multiscale problems in soil science and geology. The content of this book is based on the author’s long-standing, interdisciplinary research. Since the preparation of the first edition in 2010–11, considerable progress has been made in digital terrain modeling.
The purpose of this book is to introduce civil and environmental engineering students – and those active in engineering – to the fundamental principles of the earth sciences as they affect their practice. In particular, this book is intended for the use of geotechnical and geoenvironmental students and those in that practice. Hopefully, the reader will come to appreciate the complex problems that exist in engineering practice in a geological environment and find them intellectually rewarding.
Во время прошлых землетрясений было выяснено, что колебания грунта на мягких участках почвы в целом больше, чем близлежащих горных пород, в зависимости от местных грунтовых условий (например, Сид (Seed) и Идрис (Idriss), 1968). Такие усиления реакции грунта симулировались с помощью нескольких компьютерных программ, в которых принимались упрощенные грунтовые условия, такие, как горизонтальные слои грунта бесконечной протяженности.
Engineering geology provides a vital link between the established, traditional, and relevant disciplines that link its identity and name; that is, “engineering” and “geology.” More recently, a variety of other fields of study are viewed as synonymous with engineering geology including but not limited to geotechnics, geological engineering, environmental engineering, environmental geology, applied geology, and so on.
The field of hydrological science deals with the occurrence, distribution, movement, and properties of water on the earth. The science of hydrology holds a unique and central place in the field of earth system science, intimately linked with other water-related disciplines such as meteorology, climatology, geomorphology, hydrogeology, and ecology. Beyond basic scientific interest, water quantity and water quality have become two of the most pressing environmental issues of our time.
More than ever before, a compelling need exists for an encyclopedic resource about soil the rich mix of mineral particles, organic matter, gases, and soluble compounds that foster both plant and animal growth. Civilization depends more on the soil as human populations continue to grow and increasing demands are placed upon available resources.
The Encyclopedia of Soils in the Environmentis a comprehensive and integrated consideration of a topic of vital importance to human societies in the past, present, and future. This important work encompasses the present knowledge of the world's variegated soils, their origins, properties, classification, and roles in the biosphere. A team of outstanding, international contributors has written over 250 entries that cover a broad range of issues facing today's soil scientists, ecologists, and environmental scientists.
This four-volume set features thorough articles that survey specific aspects of soil biology, ecology, chemistry and physics. Rounding out the encyclopedia's excellent coverage, contributions cover cross-disciplinary subjects, such as the history of soil utilization for agricultural and engineering purposes and soils in relation to the remediation of pollution and the mitigation of global climate change.
