Download or read book A Catalogue of the Hydraulic Properties of Unsaturated Soils written by Yechezkel Mualem and published by . This book was released on 1976 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Catalogue of the Hydraulic Properties of Unsaturated Soils written by Y. Mualem and published by . This book was released on 1976 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indirect Methods for Estimating the Hydraulic Properties of Unsaturated Soils written by M. Th Van Genuchten and published by . This book was released on 1992 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The UNSODA Unsaturated Soil Hydraulic Database written by and published by . This book was released on 1996 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Testing and Analysis Procedures for Determining Hydraulic Properties of Unsaturated Soils written by Jonathan James Forte and published by . This book was released on 2004 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Hydraulic Properties written by Nabil Ibrahim Mina and published by . This book was released on 1994 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unsaturated flow through porous media has gained a lot of attention in recent decades in many fields of agriculture and hydrology. Examples are many, of which are deficit irrigation and contaminants transport. Several models simulating unsaturated flow processes require as input the diffusivity -water content relation (D-0) and/or the hydraulic conductivity-water content relation (K-0). Several techniques for measuring or predicting these relations were developed throughout the literature. Most of these techniques involve either analytical and quasi-analytical solutions of the governing non-linear partial differential equation, or laboratory experiments, which are both expensive and time consuming. In this research, an experimental model was developed based on the field capacity concept and requires only measurements of the wetting depth with time. The laboratory setup is simple and inexpensive, consisting of uniformly packed soil columns. Three replicates of three different soil textures were used. Water was added to the columns and measurements of the wetting depths were taken after infiltration has virtually ceased; these measurements were then used to get the D-0 relation. With the aid of the soil moisture characteristic curves developed by the pressure plate method, the K-0 relation was determined. Results produced by this model showed trends that were in good agreement with some empirical relations in the literature, especially for fine textured soils. The best fitted relations for clay and sandy clay loam soils were of the power function and the exponential function types. For coarse textured soils (sand) the data were scattered and the developed model was not valid, - this was due to neglecting the gravity term in the model. The values of the fitted experimental parameters were too high as compared with those in the literature.
Download or read book Hydraulic Conductivity Assessment of Unsaturated Soils written by DB. Stephens and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting the direction and rate of contaminant transport in the vadose zone requires quantification of soil hydraulic properties. For many problems, the most appropriate approach is to assume that the contamination is moving with the water phase. Therefore, the unsaturated hydraulic conductivity is the most important property governing water movement in soils. There is a wide variety of methods to determine this important property including in situ methods (e.g., instantaneous profile method, crust method), laboratory methods (e.g., one-step outflow, pressure plate, long column methods), and calculations from other data (e.g., Brooks and Corey, van Genuchten models). In this paper we present a summary and brief critique of the current methods for determining unsaturated hydraulic conductivity.
Download or read book Estimation of Unsaturated Soil Hydraulic Properties from Transient Laboratory and Field Experiments written by Simon Oyaro Eching and published by . This book was released on 1993 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsaturated Soils Experimental Studies written by Tom Schanz and published by Springer Science & Business Media. This book was released on 2006-03-04 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings document the various papers delivered and partially presented at the International Conference “From experimental evidence towards numerical modeling of unsaturated soils,” which was held in Weimar (Germany) during 18-19 September 2003. The conference was organized under the auspices of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) and the National German G- technical Society (DGGT). The need to understand the behavior of unsaturated soils is becoming exclusively - sential for the geotechnical engineers and designers. In the last three decades many - searchers have made significant contribution to the understanding of the unsaturated soil mechanics. Nevertheless, application of the subject to variety of new problems still - quires our attention. This International conference is a mere attempt to unite researchers and engineers in geotechnical engineering and to discuss about the problems associated with the unsaturated soils. Doing so the objectives of these lecture notes are as follows: - to promote unsaturated soil mechanics for practical application, - to exchange experiences in experimental unsaturated soil mechanics and numerical modeling, - to discuss application of unsaturated soil mechanics to variety of problems. In other words, we could also name these two volumes as “From theory to daily pr- tice”. I would like to extend my deep sense of appreciation as the editor and the Head of the organizing committee, to many persons who have contributed either directly or indirectly to organize the International conference and to finalize these proceedings.
Download or read book Chambre des pairs impressions diverses session de 1840 Tome 1 n 15 written by and published by . This book was released on 1840 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsaturated Soils Research and Applications written by Claudio Mancuso and published by Springer Science & Business Media. This book was released on 2012-06-23 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes contain the contributions to the Second European Conference on Unsaturated Soils, E-UNSAT 2012, held in Napoli, Italy, in June 2012. The event is the second of a series of European conferences, and follows the first successful one, organised in Durham, UK, in 2008. The conference series is supported by Technical Committee 106 of the International Society of Soil Mechanics and Geotechnical Engineering on Unsaturated Soils. The published contributions were selected after a careful peer-review process. A collection of more than one hundred papers is included, addressing the three thematic areas experimental, including advances in testing techniques and soil behaviour, modelling, covering theoretical and constitutive issues together with numerical and physical modelling, and engineering, focusing on approaches, case histories and geo-environmental themes. The areas of application of the papers embrace most of the geotechnical problems related to unsaturated soils. Increasing interest in geo-environmental problems, including chemical coupling, marks new perspectives in unsaturated soil mechanics. This book will provide a valuable up-to-date reference across the subject for both researchers and practitioners.
Download or read book Unsaturated Soils Two Volume Set written by Olivier Buzzi and published by CRC Press. This book was released on 2009-11-02 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unsaturated soil mechanics is now increasingly recognized as an integral part of mainstream soil mechanics, and the importance and relevance of unsaturated soil mechanics for the broad field of geotechnical engineering no longer needs to be emphasized. The two volumes making up Unsaturated soils include papers from the 4th Asia Pacific Confere
Download or read book Investigation of a New Method for Measuring Unsaturated Soil Hydraulic Properties written by Mohamed Mahmoodian-Shoosthari and published by . This book was released on 1980 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsaturated Soils Research and Applications written by Claudio Mancuso and published by Springer Science & Business Media. This book was released on 2012-06-26 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: These volumes contain the contributions to the Second European Conference on Unsaturated Soils, E-UNSAT 2012, held in Napoli, Italy, in June 2012. The event is the second of a series of European conferences, and follows the first successful one, organised in Durham, UK, in 2008. The conference series is supported by Technical Committee 106 of the International Society of Soil Mechanics and Geotechnical Engineering on Unsaturated Soils. The published contributions were selected after a careful peer-review process. A collection of more than one hundred papers is included, addressing the three thematic areas experimental, including advances in testing techniques and soil behaviour, modelling, covering theoretical and constitutive issues together with numerical and physical modelling, and engineering, focusing on approaches, case histories and geo-environmental themes. The areas of application of the papers embrace most of the geotechnical problems related to unsaturated soils. Increasing interest in geo-environmental problems, including chemical coupling, marks new perspectives in unsaturated soil mechanics. This book will provide a valuable up-to-date reference across the subject for both researchers and practitioners.
Download or read book Hydraulic and Strength Properties of Unsaturated Soils written by Arnold M. Flikke and published by . This book was released on 1985 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue of Soil Hydraulic Properties written by Y. Mualem and published by . This book was released on 1995 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unsaturated Soils Two Volume Set written by Eduardo E. Alonso and published by CRC Press. This book was released on 2010-09-02 with total page 1532 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades the development of unsaturated soil mechanics has been remarkable, resulting in momentous advances in fundamental knowledge, testing techniques, computational procedures, prediction methodologies and geotechnical practice. The advances have spanned the full spectrum of theory and practice. In addition, unsaturated materials exhibiting complex behaviour such as residual soils, swelling soils, compacted soils, collapsing soils, tropical soils and solid wastes have been integrated in a common understanding of shared behaviour features. It is also noteworthy that unsaturated soil mechanics has proved surprisingly fruitful in expanding to other neighbouring areas such as swelling rocks, rockfill mechanics, and freezing soils. As a consequence, geotechnical engineering involving unsaturated soils can be now approached from a more rational and systematic perspective leading towards an improved and more effective practice. Unsaturated Soils contains the papers presented at the 5th International Conference on Unsaturated Soil (Barcelona, Spain, 6-8 September 2010). They report significant advances in the areas of unsaturated soil behaviour, testing techniques, constitutive and numerical modelling and applications. The areas of application include soil-atmosphere interaction, foundations, slopes, embankments, pavements, geoenviromental problems and emerging topics. They are complemented by three keynote lectures and three general reports covering general issues of modelling, testing and applications. Unsaturated Soils is a comprehensive record of the state-of-the art in unsaturated soil mechanics and a sound basis for further progress in the future. The two volumes will serve as an essential reference for academics, researchers and practitioners interested in unsaturated soils.
