Consolidation Theories For Saturated Unsaturated Soils And Numerical Simulation Of Residential Buildings On Expansive Soils

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Consolidation Theories for Saturated-unsaturated Soils and Numerical Simulation of Residential Buildings on Expansive Soils

Author : Xiong Zhang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (775 download)

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Book Synopsis Consolidation Theories for Saturated-unsaturated Soils and Numerical Simulation of Residential Buildings on Expansive Soils by : Xiong Zhang

Download or read book Consolidation Theories for Saturated-unsaturated Soils and Numerical Simulation of Residential Buildings on Expansive Soils written by Xiong Zhang and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The coupled and uncoupled consolidation theories for saturated-unsaturated soils have been discussed. A new method for constructing the constitutive surfaces for saturated-unsaturated soils has been proposed. The consolidation processes for saturated-unsaturated soils have been explained by thermodynamic analogue. One dimensional consolidation theory for saturated-unsaturated soils is presented and a new method is proposed to calculate the immediate settlement, total settlement and the time history of the consolidation settlement manually in the same way as what we have done for saturated soils with a higher accuracy. It makes the consolidation theory of unsaturated soils as applicable as that of saturated soils. This method can also be used to perform uncoupled two or three dimensional consolidation calculation for both expansive soils and collapsible soils. From the analysis, the equivalent effective stress and excessive pore water pressure can be easily calculated. At the same time, the physical meanings for the parameters in the constitutive laws for saturated-unsaturated are illustrated. A new set of the differential equations for the coupled two or three dimensional consolidation of saturated-unsaturated soils are proposed, together with the corresponding method to solve the differential equations. It is also proved numerically and analytically that during the consolidation process the Mandel-Cryer effect exists for unsaturated expansive soils and there is a "reverse" Mandel-Cryer effect for unsaturated collapsible soils. A new method is proposed to estimate the volume change of expansive soils. A complete system is proposed for the numerical simulation of residential buildings on expansive soils. The strength of this method lies in its use of simple and readily available historic weather data such as daily temperature, solar radiation, relative humidity, wind speed and rainfall as input. Accurate three dimensional predictions are obtained by integrating a number of different analytical and numerical techniques: different simulation methods for different boundary conditions such as tree, grass, and bare soils, coupled hydro-mechanical stress analysis to describe deformation of saturated-unsaturated soils, jointed elements simulation of soil-structure interaction, analysis of structure stress moment by general shell elements, and to assess structural damage by the smeared cracking model. The real-time and dynamic simulation results are consistent with filed measurements.

Unsaturated Soils, Two Volume Set

Author : Eduardo E. Alonso
Publisher : CRC Press
ISBN 13 : 0203834011
Total Pages : 1532 pages
Book Rating : 4.2/5 (38 download)

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Book Synopsis Unsaturated Soils, Two Volume Set by : Eduardo E. Alonso

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.

Advances in Unsaturated Soils

Author : Bernardo Caicedo
Publisher : CRC Press
ISBN 13 : 0415620953
Total Pages : 612 pages
Book Rating : 4.4/5 (156 download)

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Book Synopsis Advances in Unsaturated Soils by : Bernardo Caicedo

Download or read book Advances in Unsaturated Soils written by Bernardo Caicedo and published by CRC Press. This book was released on 2013-02-01 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: New theories and testing techniques related with Unsaturated Soil Mechanics have proven to be valuable tools to study a broad spectrum of geo-materials which includes rocks, rock fills, frozen soils and domiciliary solid wastes. These new theories and testing techniques have permitted the analysis of several traditional problems from a new perspective (e.g., swelling or collapsible soils and compacted soils or pavements materials), and they have also shown their efficiency to study new energy-related problems like CO2 sequestration and nuclear waste disposal. Advances in Unsaturated Soils is a collection of papers from the 1st Pan-American Conference on Unsaturated Soils organized in Cartagena de Indias, Colombia, in February 2013. The volume includes 76 research papers coming for all over the world, as well as 7 keynotes papers by well known international researchers. The contributions present a variety of topics including: • Advances in testing techniques • Unsaturated soil behavior • Constitutive modeling and microstructure • Numerical modeling • Geotechnical problems Advances in Unsaturated Soils is expected to become a useful reference to academics and professionals involved in Unsaturated Soil Mechanics.

Modern Applications of Geotechnical Engineering and Construction

Author : Mahdi O. Karkush
Publisher : Springer Nature
ISBN 13 : 981159399X
Total Pages : 381 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Modern Applications of Geotechnical Engineering and Construction by : Mahdi O. Karkush

Download or read book Modern Applications of Geotechnical Engineering and Construction written by Mahdi O. Karkush and published by Springer Nature. This book was released on 2020-12-21 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: p="" This book contains select papers from the International Conference on Geotechnical Engineering Iraq discussing the challenges, opportunities, and problems of application of geotechnical engineering in projects. The contents cover a wide spectrum of themes in geotechnical engineering, including but not limited to sustainability & geotechnical engineering, modeling of foundations & slope stability, seismic analysis & soil mechanics, construction materials, and construction & management of projects. This volume will prove a valuable resource for practicing engineers and researchers in the field of geotechnical engineering, structural engineering, and construction and management of projects. ^

Consolidation Analyses of Soils

Author : Jian-Hua Yin
Publisher : CRC Press
ISBN 13 : 100030020X
Total Pages : 342 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Consolidation Analyses of Soils by : Jian-Hua Yin

Download or read book Consolidation Analyses of Soils written by Jian-Hua Yin and published by CRC Press. This book was released on 2020-12-28 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: When stresses are applied to saturated soil, deformation will occur as water in voids is squeezed out. Consolidation Analyses of Soils focuses on the consolidation of fully saturated soils. The book follows a classic approach by beginning with one-dimensional constitutive relations of soils and one-dimensional consolidation. It then moves on to analytical solutions to several one-dimensional consolidation problems and one-dimensional finite strain consolidation. The authors also present a finite element method for consolidation analysis of one-dimensional problems, analytical solutions to consolidation of soil with vertical drains, and a finite difference method for consolidation analysis of one-dimensional problems. Simplified methods for consolidation analysis of soils exhibiting creep are introduced and applied to different cases. Three-dimensional consolidation equations and solutions of typical three-dimensional consolidation problems are covered, as well as simplified finite element consolidation analysis of soils with vertical drain and finite element method for three-dimensional consolidation problems. The book is unique in that it covers both classic solutions and state-of-the-art work in consolidation analyses of soils. Authors Jian-Hua Yin is Chair Professor of Soil Mechanics in the Department of Civil and Environmental Engineering at The Hong Kong Polytechnic University. Guofu Zhu is a Professor in the Department of Engineering Structures and Mechanics at Wuhan University of Technology, China.

Ecosystems and Sustainable Development VIII

Author : Y. Villacampa Esteve
Publisher : WIT Press
ISBN 13 : 1845645103
Total Pages : 545 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Ecosystems and Sustainable Development VIII by : Y. Villacampa Esteve

Download or read book Ecosystems and Sustainable Development VIII written by Y. Villacampa Esteve and published by WIT Press. This book was released on 2011 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biennial series of ECOSUD conferences, originating from the work of the late Nobel laureate, Ilya Prigogine, challenges us to seeking to integrate thermodynamics, ecology and economics into “ecodynamics.” It is not only a platform to present novel research related to ecological problems from all over the world, but it also gives opportunities for new emergent ideas in science arising from the cross fertilization of different disciplines, including mathematical models and eco-informatics, evolutionary thermodynamics and biodiversity, structures in ecosystems modelling and landscapes to mention but a few. This book contains papers presented at the the Eighth International Conference in the well-established conference series on Ecosystems and Sustainable Development. Conference topics include : Greenhouse Gas Issues; Ecosystems Modelling; Mathematical and System Modelling; Natural Resources Management; Environmental Indicators; Sustainability Studies; Recovery of Damaged Areas; Energy and the Environment; Socio Economic Factors; Soil Contamination; Waste Management; Water Resources; Environmental Management; and Modelling of alternative futures.

Functional Pavement Design

Author : Sandra Erkens
Publisher : CRC Press
ISBN 13 : 1317285522
Total Pages : 212 pages
Book Rating : 4.3/5 (172 download)

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Book Synopsis Functional Pavement Design by : Sandra Erkens

Download or read book Functional Pavement Design written by Sandra Erkens and published by CRC Press. This book was released on 2016-10-14 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Pavement Design is a collections of 186 papers from 27 different countries, which were presented at the 4th Chinese-European Workshops (CEW) on Functional Pavement Design (Delft, the Netherlands, 29 June-1 July 2016). The focus of the CEW series is on field tests, laboratory test methods and advanced analysis techniques, and cover analysis, material development and production, experimental characterization, design and construction of pavements. The main areas covered by the book include: - Flexible pavements - Pavement and bitumen - Pavement performance and LCCA - Pavement structures - Pavements and environment - Pavements and innovation - Rigid pavements - Safety - Traffic engineering Functional Pavement Design is for contributing to the establishment of a new generation of pavement design methodologies in which rational mechanics principles, advanced constitutive models and advanced material characterization techniques shall constitute the backbone of the design process. The book will be much of interest to professionals and academics in pavement engineering and related disciplines.

Simulation of Consolidation in Partially Saturated Soil Materials

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Simulation of Consolidation in Partially Saturated Soil Materials by :

Download or read book Simulation of Consolidation in Partially Saturated Soil Materials written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Partially saturated soil materials undergo consolidation, heave, collapse and failure due to changes in pore fluid pressure. The precise nature of the mechanics of such deformations is only poorly understood at present. Experimental evidence has shown that the volume change behavior of unsaturated soils cannot be adequately explained through changes in effective stress, even when a saturation dependent parameter is incorporated into the definition of effective stress. Two independent stress-state variables, involving combinations of total stress, pore air pressure and pore water pressure, are required to characterize volume changes and saturation changes in the partially saturated state. In general, two coupled conservation equations, one for the water-phase and the other for the air-phase need to be solved in order to predict the deformation behavior of unsaturated soils. If directional displacements and changes in the stress-field are required, then the conservation equations are to be integrated with an additional set of multi-dimensional force balance equations. For lack of a sufficient understanding of elastic constants such as Poisson's Ratio and Lame's constants as applied to unsaturated soils, little has been achieved so far in integrating the conservation equations and the force balance equations. For the long-term modeling of consolidation with respect to uranium mill tailings, it may be acceptable and economical to solve a single conservation equation for water, assuming that the air-phase is continuous and is at atmospheric pressure everywhere in the soil. The greatest challenge to modeling consolidation in the unsaturated zone at the presnt time is to develop enough experimental data defining the variation of void ratio and saturation with reference to the two chosen stress-state variables.

Dissertation Abstracts International

Author :
Publisher :
ISBN 13 :
Total Pages : 848 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Consolidation of Soils

Author : Frank C. Townsend
Publisher : ASTM International
ISBN 13 : 9780803104464
Total Pages : 764 pages
Book Rating : 4.1/5 (44 download)

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Book Synopsis Consolidation of Soils by : Frank C. Townsend

Download or read book Consolidation of Soils written by Frank C. Townsend and published by ASTM International. This book was released on 1986 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Unsaturated Soils: Numerical and Theoretical Approaches

Author : Tom Schanz
Publisher : Springer Science & Business Media
ISBN 13 : 3540267379
Total Pages : 365 pages
Book Rating : 4.5/5 (42 download)

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Book Synopsis Unsaturated Soils: Numerical and Theoretical Approaches by : Tom Schanz

Download or read book Unsaturated Soils: Numerical and Theoretical Approaches written by Tom Schanz and published by Springer Science & Business Media. This book was released on 2005-12-28 with total page 365 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.

Unsaturated Soils: Research and Applications

Author : Claudio Mancuso
Publisher : Springer Science & Business Media
ISBN 13 : 3642313434
Total Pages : 438 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Unsaturated Soils: Research and Applications by : Claudio Mancuso

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.

Practice of Constitutive Modelling for Saturated Soils

Author : Zhen-Yu Yin
Publisher : Springer Nature
ISBN 13 : 9811563071
Total Pages : 417 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Practice of Constitutive Modelling for Saturated Soils by : Zhen-Yu Yin

Download or read book Practice of Constitutive Modelling for Saturated Soils written by Zhen-Yu Yin and published by Springer Nature. This book was released on 2020-09-11 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of a constitutive modeling platform for soil testing, which is one of the key components in geomechanics and geotechnics. It discusses the fundamentals of the constitutive modeling of soils and illustrates the use of these models to simulate various laboratory tests. To help readers understand the fundamentals and modeling of soil behaviors, it first introduces the general stress–strain relationship of soils and the principles and modeling approaches of various laboratory tests, before examining the ideas and formulations of constitutive models of soils. Moving on to the application of constitutive models, it presents a modeling platform with a practical, simple interface, which includes various kinds of tests and constitutive models ranging from clay to sand, that is used for simulating most kinds of laboratory tests. The book is intended for undergraduate and graduate-level teaching in soil mechanics and geotechnical engineering and other related engineering specialties. Thanks to the inclusion of real-world applications, it is also of use to industry practitioners, opening the door to advanced courses on modeling within the industrial engineering and operations research fields.

Unsaturated Soil Consolidation Theory and Laboratory Experimental Data

Author : DG. Fredlund
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Unsaturated Soil Consolidation Theory and Laboratory Experimental Data by : DG. Fredlund

Download or read book Unsaturated Soil Consolidation Theory and Laboratory Experimental Data written by DG. Fredlund and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume change process of an unsaturated soil was considered as a transient flow problem with water and air flowing simultaneously under an applied stress gradient. laboratory experiments were performed to study the volume change behavior of unsaturated soils. Several compacted kaolin specimens were tested using modified Anteus oedometers and triaxial cells. Theoretical analyses were also made to best-fit the results from laboratory experiments. The fitting was accomplished by approximating the compressibility coefficients and adjusting the coefficients of permeability. The comparisons of the results obtained from the theory and the laboratory yield to a similar behavior of volume changes with respect to time.

Studying the Behavior of Unsaturated Soils Using Pore-scale Numerical Modeling with the Multiphase Lattice Boltzmann Method

Author : Reihaneh Hosseini
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

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Book Synopsis Studying the Behavior of Unsaturated Soils Using Pore-scale Numerical Modeling with the Multiphase Lattice Boltzmann Method by : Reihaneh Hosseini

Download or read book Studying the Behavior of Unsaturated Soils Using Pore-scale Numerical Modeling with the Multiphase Lattice Boltzmann Method written by Reihaneh Hosseini and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in unsaturated soil mechanics have historically lagged behind saturated soil mechanics, due to the complexities associated with the behavior of unsaturated soils. The presence of two fluid phases in the pore space of unsaturated soils gives rise to varying phase distributions and interfacial interactions, which play an important role in the mechanical and hydraulic behavior of the soil. Fundamental understanding of the behavior of unsaturated soils requires an understanding of the phase distributions at the pore scale. This dissertation presents early work on using pore-scale numerical modeling for studying the behavior of unsaturated soil. A code based on the multiphase lattice Boltzmann method (LBM) is developed for this purpose. Using this tool, two fundamental investigations are carried out. The first investigation is on the underlying source of soil-water characteristic curve (SWCC) hysteresis. Primary drainage and imbibition simulations are performed for a granular soil specimen. It is found that even in the absence of well-known contributors to SWCC hysteresis, such as contact angle hysteresis and air entrapment, SWCC is still hysteretic. The underlying source of this hysteresis is found by comparing phase distributions during drainage and imbibition. It is revealed that during imbibition narrow throats are filled by capillary condensation, while during drainage these narrow throats have to be emptied by high-curvature menisci pushing through them, therefore, requiring a higher suction at the same degree of saturation. The second investigation is on the hysteresis of the effective stress parameter as a function of degree of saturation. The effective stress parameter is measured at the base of a granular soil column during primary drainage and secondary imbibition. The independent contributions of suction and surface tension forces to the effective stress parameter are monitored throughout the simulation. It is found that the contribution of suction forces to the effective stress parameter is slightly lower during imbibition compared to drainage, however, the contribution of surface tension forces is much higher, resulting in a larger effective stress parameter during imbibition. The reason for this behavior is linked back to the differences between the phase distributions during imbibition and drainage

Unsaturated Soils 2006

Author : International Conference on Unsaturated Soils
Publisher :
ISBN 13 : 9781628705881
Total Pages : 2581 pages
Book Rating : 4.7/5 (58 download)

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Book Synopsis Unsaturated Soils 2006 by : International Conference on Unsaturated Soils

Download or read book Unsaturated Soils 2006 written by International Conference on Unsaturated Soils and published by . This book was released on 2006 with total page 2581 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simulation of Fully Saturated Soil Consolidation Problem

Author : César Menéndez Fernández
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Simulation of Fully Saturated Soil Consolidation Problem by : César Menéndez Fernández

Download or read book Simulation of Fully Saturated Soil Consolidation Problem written by César Menéndez Fernández and published by . This book was released on 1992 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "In this work, at Chapiter [sic] I, a mathematical model for fully saturated elastic clay soil with a very low and settlement dependent permeability has been developed. The model was solved by the finite element method employing repeated fixed point techniques in order to obtain the results in displacement and pore water pressure. The model is consistent with the three-dimensional theory of Biot, where the applied loads can be dependent on time. The pore fluid may be selected as a compressible or incompressible one. Later, at Chapter II, the user manual of solcxx is given. This program simulates the consolidation phenomenon of a soil, whose solid squeleton [sic] has an elastic behaviour, under different hypothesis."