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The Impact Of A Fluctuating Freezing Front On Ice Formation In Freezing Soil
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Book Synopsis The Impact of a Fluctuating Freezing Front on Ice Formation in Freezing Soil by : Matthew Ryan Dillon
Download or read book The Impact of a Fluctuating Freezing Front on Ice Formation in Freezing Soil written by Matthew Ryan Dillon and published by . This book was released on 2012 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frost heave is typically associated with the formation of segregation ice in fine-grained soil. Coarse-grained soil is generally considered to be non-frost susceptible. Field observa-tions and laboratory experiments show that coarse-grained soil can be extremely ice-rich in specific conditions. Previous studies have shown that oscillation of the frozen-unfrozen boundary can lead to the formation of ice by a mechanism different from the segregation ice mechanism. Conditions related to the formation of ice in coarse-grained soil were in-vestigated using modern laboratory techniques. Fourteen tests were conducted on five soil types. The thickness of soil subjected to freeze-thaw cycles was varied and controlled by the magnitude and duration of applied soil temperatures. The thickness of the ice formed increased when the sample drainage was limited or prevented during cooling. Under spe-cific conditions, the formation of a discrete ice layer was observed in coarse-grained soils. Seven samples were scanned with the pCT scanner at the completion of the warming and cooling tests. The sub-samples scanned were analyzed in 2D cross-sections, and charac-terized as 3D reconstructions. Frost heave induced by the formation of ice was observed in both fine- and coarse-grained soils, including soils that were found to be traditionally non-frost susceptible.
Book Synopsis Ground Freezing 2000 - Frost Action in Soils by : J.F. Thimus
Download or read book Ground Freezing 2000 - Frost Action in Soils written by J.F. Thimus and published by CRC Press. This book was released on 2020-09-10 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been increasing interest in the use of Artificial Ground Freezing (AGF) in forming efficient barriers to prevent pollution penetrating geological deposits. This volume includes papers on heat and mass transfer, frost susceptibility and frost heave, and mechanical properties.
Book Synopsis Chemical Aspects of Soil Freezing by : Karen S. Henry
Download or read book Chemical Aspects of Soil Freezing written by Karen S. Henry and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil water chemistry and soil particle characteristics directly and significantly influence the freezing process in soils. The rate of frost heave is influenced because chemicals modify water migration and depress the freezing point in soils. Solutes are concentrated when they are expelled from crystallizing ice, modifying adsorbed film thicknesses, depressing freezing points, creating concentration gradients, altering forces between particles or between ice particles, and modifying the chemical potential of the water. These effects often have counteracting influences on frost heave. Solute expulsion during freezing produces a 'fringe-like' freezing front in saline soils, primarily because of freezing point depression; this may also be true in 'non-saline' soils. Heave can be reduced by adding chemicals to soil to depress the freezing point to modify the soil's structure or hydraulic characteristics. The concentration of solutes in the unfrozen water of the freezing soil can possibly be used for isolating toxic wastes in soil. Ground freezing, Soils, Soil chemistry, Soil freezing. (mjm).
Book Synopsis Psychrophiles: From Biodiversity to Biotechnology by : Rosa Margesin
Download or read book Psychrophiles: From Biodiversity to Biotechnology written by Rosa Margesin and published by Springer. This book was released on 2017-06-22 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold adaptation includes a complex range of structural and functional adaptations at the level of all cellular constituents, and these adaptations render cold-adapted organisms particularly useful for biotechnological applications. This book presents the most recent knowledge of (i) boundary conditions for microbial life in the cold, (ii) microbial diversity in various cold ecosystems, (iii) molecular cold adaptation mechanisms and (iv) the resulting biotechnological perspectives.
Book Synopsis Ground Freezing by : Hans L. Jessberger
Download or read book Ground Freezing written by Hans L. Jessberger and published by Elsevier. This book was released on 2012-12-02 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in Geotechnical Engineering Volume 26: Ground Freezing presents the proceedings of the First International Symposium on Ground Freezing, held in Bochum, Germany on March 8-10, 1978. It summarizes progress in the application of the ground freezing technique in geotechnical engineering, with a focus on engineering with frozen soils and related frost research problems. It includes papers that discuss phase transformation of water, thermodynamics, heat and mass transfer, and mathematical models. The laboratory and theoretical studies of thermophysical and mechanical properties are discussed as well. Organized into 43 chapters, this volume begins with an overview of the freezing and thawing of soils, earth, and rock, and the engineering applications of the favorable properties of frozen ground. It then discusses the mechanical properties of artificially frozen soil for construction purposes, the principles of mechanical and thermal behavior of frozen soil, and the design and calculation of frozen soil-structures. Furthermore, it explains the calculation and dimensioning of refrigeration plants and monitoring of frost penetration. The methods and instrumentation for determining the locations of boundaries of frozen soils and the factors affecting the formation of soil cryogenic textures upon artificial active and passive soil freezing are described. The book also details the influence of salts in the pore water in freezing soils and explains how clay microstructure affects the amount of unfrozen water. In addition, it presents the physicomechanical and thermomechanical properties of frozen coarse-grained soil with sandy clay aggregate. This book will be a valuable source of information for scientists and engineers.
Author :Orlando B. Andersland Publisher :Springer Science & Business Media ISBN 13 :1475722907 Total Pages :363 pages Book Rating :4.4/5 (757 download)
Book Synopsis An Introduction to Frozen Ground Engineering by : Orlando B. Andersland
Download or read book An Introduction to Frozen Ground Engineering written by Orlando B. Andersland and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frozen Ground Engineering first introduces the reader to the frozen environment and the behavior of frozen soil as an engineering material. In subsequent chapters this information is used in the analysis and design of ground support systems, foundations, and embankments. These and other topics make this book suitable for use by civil engineering students in a one-semester course on frozen ground engineering at the senior or first-year-graduate level. Students are assumed to have a working knowledge of undergraduate mechanics (statics and mechanics of materials) and geotechnical engineering (usual two-course sequence). A knowledge of basic geology would be helpful but is not essential. This book will also be useful to advanced students in other disciplines and to engineers who desire an introduction to frozen ground engineering or references to selected technical publications in the field. BACKGROUND Frozen ground engineering has developed rapidly in the past several decades under the pressure of necessity. As practical problems involving frozen soils broadened in scope, the inadequacy of earlier methods for coping became increasingly apparent. The application of ground freezing to geotechnical projects throughout the world continues to grow as significant advances have been made in ground freezing technology. Freezing is a useful and versatile technique for temporary earth support, groundwater control in difficult soil or rock strata, and the formation of subsurface containment barriers suitable for use in groundwater remediation projects.
Book Synopsis Computing the Formation of Ice Interlayers in Freezing Moist Soil by : V. G. Melamed
Download or read book Computing the Formation of Ice Interlayers in Freezing Moist Soil written by V. G. Melamed and published by . This book was released on 1970 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: An equation is derived which represents an essentially new condition of ice formation in the soils penetrated by frost, establishing the nature of the freezing, linking the dynamics of the temperature fields in both zones and the rate of the freezing front's advance with the dynamics of a moisture field. (Author).
Book Synopsis Ground Freezing Effects on Soil Erosion of Army Training Lands by : Lawrence W. Gatto
Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands written by Lawrence W. Gatto and published by . This book was released on 1997 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Freezing Effects on Soil Erosion of Army Training Lands: Part 1, Initial Test Results by :
Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands: Part 1, Initial Test Results written by and published by DIANE Publishing. This book was released on 1997 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Military maneuvers damage vegetation and compact and rut soils on training lands, thereby increasing the likelihood of hillslope runoff and soil erosion. Soil Freeze-Thaw (FT) processes can change the hydraulic geometry and roughness of vehicular ruts and reduce soil compaction, which often partially restores the water infiltration rate that existed before compaction. The efficiency of these FT-induced 'repairs' depends on soil water content and FT intensity. Initial tests showed that: (1) an experimental soil bin designed and constructed for rut experiments allows acceptable simulation of field soil FT, and (2) the hydraulic geometry of a rectangular rill in a fine silt soil with an initial volumetric water content of 36% changes dramatically due to rill sideslope slumping during thaw. Future experiments will compare differences in the response of natural rills and vehicular ruts to FT-induced soil failure, and investigate the effects of FT on soil erodibility and the influences of snow cover on soil erosion processes in the spring.
Book Synopsis Frost Action and Its Control by : Richard L. Berg
Download or read book Frost Action and Its Control written by Richard L. Berg and published by . This book was released on 1984 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four papers, parts or all of which were presented during a session entitled "Frost heave processes and their control" at the ASCE National Spring Convention in 1982.
Book Synopsis Freezing and Thawing of Soil-water Systems by : Duwayne Marlo Anderson
Download or read book Freezing and Thawing of Soil-water Systems written by Duwayne Marlo Anderson and published by . This book was released on 1985 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioremediation of Petroleum Hydrocarbons in Cold Regions by : Dennis M. Filler
Download or read book Bioremediation of Petroleum Hydrocarbons in Cold Regions written by Dennis M. Filler and published by Cambridge University Press. This book was released on 2008-02-21 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide to bioremediation in cold regions is designed to aid environmental practitioners, industry, and regulators in the remediation of petroleum spills and contaminated sites in cold regions. Remediation design and technology used in temperate climates does not necessarily work in cold climates, and cleanup takes longer due to shorter treatment seasons, sub-freezing temperatures, ground freezing and thawing, and limited bioactivity. Environmental engineers and scientists from eight countries working in the polar regions combine their experiences and expertise with petroleum contamination to write this book. It contains in-depth discussions on regulations, freezing and frozen ground, identification and adaptations of cold-tolerant bacteria, contaminant transport in cold soils and permafrost, temperature effects on biodegradation, analytical methods, treatability studies, and nutritional requirements for bioremediation. Emphasis is given to practical and effective bioremediation methods for application in cold regions. Emerging technologies are also discussed.
Book Synopsis Mixed-Phase Clouds by : Constantin Andronache
Download or read book Mixed-Phase Clouds written by Constantin Andronache and published by Elsevier. This book was released on 2017-09-28 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed-Phase Clouds: Observations and Modeling presents advanced research topics on mixed-phase clouds. As the societal impacts of extreme weather and its forecasting grow, there is a continuous need to refine atmospheric observations, techniques and numerical models. Understanding the role of clouds in the atmosphere is increasingly vital for current applications, such as prediction and prevention of aircraft icing, weather modification, and the assessment of the effects of cloud phase partition in climate models. This book provides the essential information needed to address these problems with a focus on current observations, simulations and applications. - Provides in-depth knowledge and simulation of mixed-phase clouds over many regions of Earth, explaining their role in weather and climate - Features current research examples and case studies, including those on advanced research methods from authors with experience in both academia and the industry - Discusses the latest advances in this subject area, providing the reader with access to best practices for remote sensing and numerical modeling
Book Synopsis Soil Freezing and Permafrost by : Raymond Nen Yong
Download or read book Soil Freezing and Permafrost written by Raymond Nen Yong and published by . This book was released on 1962 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Civil Engineers. Cold Regions Engineering Division Publisher : ISBN 13 :9781523132799 Total Pages : pages Book Rating :4.1/5 (327 download)
Book Synopsis Frost Action in Soils by : American Society of Civil Engineers. Cold Regions Engineering Division
Download or read book Frost Action in Soils written by American Society of Civil Engineers. Cold Regions Engineering Division and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Prepared by the Frozen Ground Committee and the Transportation and Infrastructure Committee of the Cold Regions Engineering Division of ASCEFrost Action in Soils: Fundamentals and Mitigation in a Changing Climate presents the challenges of cold regions engineering in a changing climate, as well as the current practices and state-of-the-art tools for addressing them. Climate change poses questions regarding associated effects on freeze-thaw action and the potential impacts on pavements and other structures in cold regions. In the last 35 years, significant technological advancements addressing frost action in soils have occurred; and tools for instrumentation, measurement, and computer analysis have improved considerably. Thebook explores frost action in soils from different perspectives, as presented in three parts. The first section presents the fundamentals of frost heave and thaw weakening, the impacts on roads and other structures, and the projected effects of climate change on frost action. The second section presents mitigation of frost heave and thaw weakening within pavement structures. The third section highlights three case studies dealing with frost action and mitigation for buildings, roadways, and airfields. This book is a valuable resource for engineers, scientists, and government agencies involved in cold regions engineering and the mitigation of frost action on pavements and other structures
Book Synopsis Soil Behavior on Freezing, with and Without Additives by : National Research Council (U.S.). Highway Research Board
Download or read book Soil Behavior on Freezing, with and Without Additives written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paper 1: Results obtained from freezing experiments on soil systems at various porosities are described. Paper 2: Studies in permafrost areas show that a particle-size sorting occurs in saturated granular soils due to freeze-thaw cycling. This phenomenon is evidenced by a gradual change in size of soil grains, with the fines at the bottom of the active layer and the coarse at the surface.
Book Synopsis Light Scattering by Ice Crystals by : Kuo-Nan Liou
Download or read book Light Scattering by Ice Crystals written by Kuo-Nan Liou and published by Cambridge University Press. This book was released on 2016-10-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the fundamentals and applications of light scattering, absorption and polarization processes involving ice crystals.
