Alexander M. Puzrin's Books

Geomechanics of Failures

By: Alexander M. Puzrin,Eduardo E. Alonso,Núria M. Pinyol

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Geomechanics of Failures

By: Alexander M. Puzrin,Eduardo E. Alonso,Núria M. Pinyol

The main goal of this introductory text is to demonstrate how basic concepts in Soil Mechanics can be used as a “forensic” tool in the investigation of geotechnical failures. This, in turn, provides a good opportunity to show how to use available procedures in the formulation of useful simple models. Geotechnical failure is understood here in a broad sense as the failure of a structure to function properly due to a geotechnical reason. Some of the geotechnical failures selected are well known for their impact on the geotechnical community. Others are closer to the author’s experience. They have been organized into three main topics: Settlement, Bearing Capacity and Excavations. They cover a significant proportion of every day’s activity of professional geotechnical engineers. No attempt has been made to create a comprehensive handbook of failures. Instead, the emphasis has been given to creative applications of simple mechanical concepts and well known principles and solutions of Soil Mechanics. The book shows how much can be learned from relatively simple approaches. Despite this emphasis on simplicity, the book provides a deep insight into the cases analyzed. A non-negligible number of new analytical closed-form solutions have also been found. Their derivation can be followed in detail. In all the cases described an effort was made to provide a detailed and step by step description of the hypothesis introduced and of the analysis performed.

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245

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Springer Science & Business Media

Published Date

ISBN 10

9048135311

ISBN 13

9789048135318

Geomechanics of Failures. Advanced Topics

By: Eduardo E. Alonso,Núria M. Pinyol,Alexander M. Puzrin

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Geomechanics of Failures. Advanced Topics

By: Eduardo E. Alonso,Núria M. Pinyol,Alexander M. Puzrin

Geotechnical failures, specially the catastrophic ones, are a stimulus to improve current understanding of phenomena and procedures and tools for analysis and prediction. This unconventional approach to geomechanics is the essence of this book. In general, soil mechanics and geotechnical textbooks describe first the concepts and theoretical developments and then apply them to interpret or solve a particular applications. This book follows a different course. The case (a failure) is first described and then an explanation is sought. This requires a set of steps which can be summarized as follows: Identify the nature of the problem, develop a dedicated and specific formulation of the case, based on established basic concepts. In general, no single existing theory or procedure is available to solve the case at hand, provide a solution within an acceptable degree of complexity, extract the fundamental aspects of the problem and highlight its relevance. The cases selected have been grouped into three main topics: Landslides, Embankments and Dams and Dynamics of Failures. Cases selected (Vaiont, Aznalcóllar, Brattas-St. Moritz) are unique and illustrate a number of relevant and to some extent controversial issues which are of wide interest, without claiming exhaustive treatment of the subject. The book teaches how to build the necessary models to understand the failures. Well established soil mechanics concepts are the necessary background. But the cases analyzed require in general a step ahead which is specific for the case analyzed. Balance and equilibrium equations are often required as a starting point. They are formulated at different scales, which are selected having in mind the abstract representation of each case. Various chapters illustrate also the coupled nature (flow-deformation-temperature) of geotechnical problems and the need to properly address these complexities in some cases. In fact, temperature effects, a subject often neglected in conventional analyses, are necessary to explain some catastrophic landslides (Vaiont). In some of the chapters, specific calculation tools, included in well known and widely available programs (Excel, Maple...) have been used. Details of the ad hoc programs developed have also been included in Appendices to help the readers to follow the details of the calculation. Finite element methods have not been used. In the landslides analyzed (Vaiont and Brattas-St. Moritz) currently available commercial programs are of limited utility. In the remaining cases the analysis performed provides a sufficient insight and interpretation of field behaviour. Chapters include also a short description of the changes in the original design and the mitigation measures which could have prevented the failure. Also, a summary section of lessons learned is provided in all chapters. Finally, selected topics and more advanced reading are suggested. This book is associated with a Master/Doctorate course being offered at the Department of Geotechnical Engineering and Geosciences of UPC, Barcelona. Potential readers therefore include Graduate and Master students, faculty and professionals in the fields of Civil and Geotechnical Engineering.

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280

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Springer Science & Business Media

Published Date

ISBN 10

9048135389

ISBN 13

9789048135387

Principles of Hyperplasticity

An Approach to Plasticity Theory Based on Thermodynamic Principles

By: Guy T. Houlsby,Alexander M. Puzrin

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Principles of Hyperplasticity

An Approach to Plasticity Theory Based on Thermodynamic Principles

By: Guy T. Houlsby,Alexander M. Puzrin

The approach to plasticity theory developed here is firmly rooted in thermodynamics. Emphasis is placed on the use of potentials and the derivation of incremental response, necessary for numerical analysis. The derivation of constitutive models for irreversible behaviour entirely from two scalar potentials is shown. The use of potentials allows models to be very simply defined, classified and, if necessary, developed and it permits dependent and independent variables to be interchanged, making possible different forms of a model for different applications. The theory is extended to include treatment of rate-dependent materials and a powerful concept, in which a single plastic strain is replaced by a plastic strain function, allowing smooth transitions between elastic and plastic behaviour is introduced. This monograph will benefit academic researchers in mechanics, civil engineering and geomechanics and practising geotechnical engineers; it will also interest numerical analysts in engineering mechanics.

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351

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Springer Science & Business Media

Published Date

ISBN 10

1846282403

ISBN 13

9781846282409

Constitutive Modelling in Geomechanics

Introduction

By: Alexander Puzrin

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Constitutive Modelling in Geomechanics

Introduction

By: Alexander Puzrin

The purpose of this book is to bridge the gap between the traditional Geomechanics and Numerical Geotechnical Modelling with applications in science and practice. Geomechanics is rarely taught within the rigorous context of Continuum Mechanics and Thermodynamics, while when it comes to Numerical Modelling, commercially available finite elements or finite differences software utilize constitutive relationships within the rigorous framework. As a result, young scientists and engineers have to learn the challenging subject of constitutive modelling from a program manual and often end up with using unrealistic models which violate the Laws of Thermodynamics. The book is introductory, by no means does it claim any completeness and state of the art in such a dynamically developing field as numerical and constitutive modelling of soils. The author gives basic understanding of conventional continuum mechanics approaches to constitutive modelling, which can serve as a foundation for exploring more advanced theories. A considerable effort has been invested here into the clarity and brevity of the presentation. A special feature of this book is in exploring thermomechanical consistency of all presented constitutive models in a simple and systematic manner.

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307

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Springer Science & Business Media

Published Date

ISBN 10

3642273955

ISBN 13

9783642273957

Geomechanics of Failures

By: Alexander M. Puzrin,Eduardo E. Alonso,Núria M. Pinyol

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Geomechanics of Failures

By: Alexander M. Puzrin,Eduardo E. Alonso,Núria M. Pinyol

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245

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Springer Science & Business Media

Published Date

ISBN 10

9048135311

ISBN 13

9789048135318

Constitutive Modelling in Geomechanics

Introduction

By: Alexander Puzrin

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Constitutive Modelling in Geomechanics

Introduction

By: Alexander Puzrin

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Solve jigsaw puzzle

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Page Count

307

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Springer Science & Business Media

Published Date

ISBN 10

3642273955

ISBN 13

9783642273957

Book's by Alexander M. Puzrin

Geomechanics of Failures

Geomechanics of Failures

Geomechanics of Failures. Advanced Topics

Geomechanics of Failures. Advanced Topics

Principles of Hyperplasticity

Principles of Hyperplasticity

Constitutive Modelling in Geomechanics

Constitutive Modelling in Geomechanics

Geomechanics of Failures

Geomechanics of Failures

Constitutive Modelling in Geomechanics

Constitutive Modelling in Geomechanics

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