Freezing and Thawing of Soil-water Systems

Freezing and Thawing of Soil-water Systems PDF Author: Duwayne Marlo Anderson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 112

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Freezing and Thawing of Soil-water Systems

Freezing and Thawing of Soil-water Systems PDF Author: Duwayne Marlo Anderson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 112

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Physical Aspects of Soil Water and Salts in Ecosystems

Physical Aspects of Soil Water and Salts in Ecosystems PDF Author: A. Hadas
Publisher: Springer Science & Business Media
ISBN: 3642655238
Category : Science
Languages : en
Pages : 455

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Book Description
The papers collected in this book were given and discussed at the symposium on "Soil water physics and technology", which was held in Rehovot, Israel, from August 19th-September 4th, 1971. It was sponsored by the International Society of Soil Science (1.S.S.S.) through its Commissions I (soil physics) and VI (soil technology), and organized by the Israeli Soil Science Society. Thanks are due to the Editors for having assembled contributions and discussion remarks into a well-rounded, coherent book. The subjects covered in this book are the theoretical and practical aspects of the following topics: water movement in soils, soil-water interactions, evaporation from soil and plants, water requirements of crops, ion activity and migration in soils, soilwater management and salinity. In as much as these contributions were not solicited, they represent ideas and subjects considered important by the authors and debators. In science, one often finds a gap between basic research and practical application. If reading this book creates a feeling of an apparent lack of balance between theory and practice, this represents the state of our science today, and the thoughtful reader can and will recognize that much remains to be done. W. R. GARDNER T.]. MAR5HAL President, Commission I President, Commission VI 1.5.5.5.

Freezing and Thawing of Soil-water System

Freezing and Thawing of Soil-water System PDF Author: Duwayne Marlon Anderon
Publisher:
ISBN:
Category :
Languages : en
Pages : 97

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An Introduction to Frozen Ground Engineering

An Introduction to Frozen Ground Engineering PDF Author: Orlando B. Andersland
Publisher: Springer Science & Business Media
ISBN: 1475722907
Category : Science
Languages : en
Pages : 363

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Book Description
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.

Freezing of Soil with an Unfrozen Water Content and Variable Thermal Properties

Freezing of Soil with an Unfrozen Water Content and Variable Thermal Properties PDF Author: Virgil J. Lunardini
Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 40

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Book Description
While many materials undergo phase change at a fixed temperature, soil systems exhibit a definite zone of phase change. The variation of unfrozen water with temperature causes a soil system to freeze of thaw over a finite temperature range. Exact and approximate solutions are given for conduction phase change of plane layers of soil with unfrozen water contents that vary linearly and quadratically with temperature. The temperature and phase change depths were found to vary significantly from those predicted for the constant-temperature or Neumann problem. The thermal conductivity and specific heat of the soil within the mushy zone varied as a function of unfrozen water content. It was found that the effect of specific heat is negligible, while the effect of variable thermal conductivity can be accounted for by a proper choice of thermal properties used in the constant-thermal-property solution. Keywords: Frozen soils; Phase change; Soils.

Soil Behavior on Freezing, with and Without Additives

Soil Behavior on Freezing, with and Without Additives PDF Author: National Research Council (U.S.). Highway Research Board
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 48

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Book Description
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.

An Annotated Bibliography on Freezing and Thawing of Soils

An Annotated Bibliography on Freezing and Thawing of Soils PDF Author: Jesse Lunin
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 32

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Psychrophiles: From Biodiversity to Biotechnology

Psychrophiles: From Biodiversity to Biotechnology PDF Author: Rosa Margesin
Publisher: Springer
ISBN: 3319570579
Category : Science
Languages : en
Pages : 685

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Book Description
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.

Unsaturated Soil Mechanics in Engineering Practice

Unsaturated Soil Mechanics in Engineering Practice PDF Author: Delwyn G. Fredlund
Publisher: John Wiley & Sons
ISBN: 1118280504
Category : Technology & Engineering
Languages : en
Pages : 946

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Book Description
The definitive guide to unsaturated soil— from the world's experts on the subject This book builds upon and substantially updates Fredlund and Rahardjo's publication, Soil Mechanics for Unsaturated Soils, the current standard in the field of unsaturated soils. It provides readers with more thorough coverage of the state of the art of unsaturated soil behavior and better reflects the manner in which practical unsaturated soil engineering problems are solved. Retaining the fundamental physics of unsaturated soil behavior presented in the earlier book, this new publication places greater emphasis on the importance of the "soil-water characteristic curve" in solving practical engineering problems, as well as the quantification of thermal and moisture boundary conditions based on the use of weather data. Topics covered include: Theory to Practice of Unsaturated Soil Mechanics Nature and Phase Properties of Unsaturated Soil State Variables for Unsaturated Soils Measurement and Estimation of State Variables Soil-Water Characteristic Curves for Unsaturated Soils Ground Surface Moisture Flux Boundary Conditions Theory of Water Flow through Unsaturated Soils Solving Saturated/Unsaturated Water Flow Problems Air Flow through Unsaturated Soils Heat Flow Analysis for Unsaturated Soils Shear Strength of Unsaturated Soils Shear Strength Applications in Plastic and Limit Equilibrium Stress-Deformation Analysis for Unsaturated Soils Solving Stress-Deformation Problems with Unsaturated Soils Compressibility and Pore Pressure Parameters Consolidation and Swelling Processes in Unsaturated Soils Unsaturated Soil Mechanics in Engineering Practice is essential reading for geotechnical engineers, civil engineers, and undergraduate- and graduate-level civil engineering students with a focus on soil mechanics.

USA CRREL Technical Publications

USA CRREL Technical Publications PDF Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 386

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Book Description