This volume presents select papers presented at the 7th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. The papers discuss advances in the fields of earthquake engineering connected with structures. Some of the themes include soil structure interaction, dynamic analysis, underground structures, vibration isolation, seismic response of buildings etc. A strong emphasis is placed on connecting academic research and field practice, with many examples, case studies, and best practices. This volume will be of interest to researchers and practicing engineers alike.

The exploration and extraction of the earth's resources are key issues in global industrial development. In the 21st century, emphasis has increasingly being placed on geo-engineering safety, engineering accountability and sustainability. With focus on rock engineering projects, Structural Geology and Rock Engineering uses case studies and an integrated engineering approach to provide an understanding of projects constructed on or in rock masses. Based on Professors Cosgrove and Hudson's university teaching at Imperial College London, as well as relevant short course presentations, it explains the processes required for engineering modelling, design and construction.The first half of the book provides step-by-step presentations of the principles of structural geology and rock mechanics with special emphasis on the integration between the two subjects. The second half of the book turns principles into practice. A wealth of practical engineering examples are presented, including evaluations of bridge foundations, quarries, dams, opencast coal mining, underground rock engineering, historical monuments and stone buildings.This up-to-date, well-illustrated guide is ideal for teachers, researchers and engineers interested in the study and practice of rock-based projects in engineering.

Mycorrhizal Mediation of Soil: Fertility, Structure, and Carbon Storage offers a better understanding of mycorrhizal mediation that will help inform earth system models and subsequently improve the accuracy of global carbon model predictions. Mycorrhizas transport tremendous quantities of plant-derived carbon below ground and are increasingly recognized for their importance in the creation, structure, and function of soils. Different global carbon models vary widely in their predictions of the dynamics of the terrestrial carbon pool, ranging from a large sink to a large source. This edited book presents a unique synthesis of the influence of environmental change on mycorrhizas across a wide range of ecosystems, as well as a clear examination of new discoveries and challenges for the future, to inform land management practices that preserve or increase below ground carbon storage.

Prepared by the Frozen Ground Committee and the Transportation and Infrastructure Committee of the Cold Regions Engineering Division Frost 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 of these effects 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. This manuscript 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 four 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.

Clays and clay minerals are the most abundant natural reactive solids on the Earth's surface. This comprehensive review considers clay science in the context of the Critical Zone - the Earth's permeable near-surface layer. Providing information on clays and clay minerals related to geological, biological and material sciences in the Critical Zone, it's well suited for graduate students and researchers interested in clay science, and environmental and soil mineralogy. The book starts with an introduction to clays and clay minerals, their historic background, and a review of how clay science impacts the Critical Zone. Examples and applications demonstrate how clays regulate habitats and determine the availability of other resources. These examples are supported by quantitative field data, including numerical and graphical depictions of clay and clay mineral occurrences. The book concludes by covering Critical Zone clay geochemistry and clay sequences, including the industrial, synthetic medical and extra-terrestrial world of clay science.

This book is an introductory text to a range of numerical methods used today to simulate time-dependent processes in Earth science, physics, engineering, and many other fields. The physical problem of elastic wave propagation in 1D serves as a model system with which the various numerical methods are introduced and compared. The theoretical background is presented with substantial graphical material supporting the concepts. The results can be reproduced with the supplementary electronic material provided as python codes embedded in Jupyter notebooks. The book starts with a primer on the physics of elastic wave propagation, and a chapter on the fundamentals of parallel programming, computational grids, mesh generation, and hardware models. The core of the book is the presentation of numerical solutions of the wave equation with six different methods: 1) the finite-difference method; 2) the pseudospectral method (Fourier and Chebyshev); 3) the linear finite-element method; 4) the spectral-element method; 5) the finite-volume method; and 6) the discontinuous Galerkin method. Each chapter contains comprehension questions, theoretical, and programming exercises. The book closes with a discussion of domains of application and criteria for the choice of a specific numerical method, and the presentation of current challenges.

This conference brought together specialists in cyclic soil behaviour in order to discuss important results and new ideas in the field, and to share expertise in design of various problems involving cyclic or dynamic behaviour of soils.

This book covers a variety of topics:

* Theory and analysis, including constitutive relations of soil under cyclic loading, post-seismic stability analysis of soil/structure, dynamic stability of structures, liquefaction analysis of marine structures due to cyclic loading, and more

* Cyclic and dynamic laboratory and model testing, centrifuge testing and in-situ testing.

* Numerical analysis, including computer methods

* Design of industrial applications and marine structures, installation methods of piles, vibrocompaction, densification of ballast in railway structures, case studies of earthquakes and post-liquefaction observations.

This book teaches the principles of soil mechanics to undergraduates, along with other properties of engineering materials, to which the students are exposed simultaneously. Using the critical state method of soil mechanics to study the mechanical behavior of soils requires the student to consider density alongside effective stresses, permitting the unification of deformation and strength characteristics. This unification aids the understanding of soil mechanics. This book explores a one-dimensional theme for the presentation of many of the key concepts of soil mechanics - density, stress, stiffness, strength, and fluid flow - and includes a chapter on the analysis of one-dimensional consolidation, which fits nicely with the theme of the book. It also presents some theoretical analyses of soil-structure interaction, which can be analyzed using essentially one-dimensional governing equations. Examples are given at the end of most chapters, and suggestions for laboratory exercises or demonstrations are given.

This thesis adopts the relative back-projection method to dramatically reduce "swimming" artifacts by identifying the rupture fronts in the time window of a reference station; this led to a faster and more accurate image of the rupture processes of earthquakes. Mitigating the damage caused by earthquakes is one of the primary goals of seismology, and includes saving more people's lives by devising seismological approaches to rapidly analyze an earthquake's rupture process. The back-projection method described in this thesis can make that a reality.

Agriculture is strongly affected by changes in soil hydrology as well as by changes in land use and management practices and the complex interactions between them. This book aims to expand our knowledge and understanding of these interactions on a watershed scale, using soil hydrology models, and to address the consequences of land use and management changes on agriculture from a research perspective. Case studies illustrate the impact of land use and management practices on various soil hydrological parameters under different climates and ecosystems.

This third edition provides a concise yet approachable introduction to seismic theory, designed as a first course for graduate students or advanced undergraduate students. It clearly explains the fundamental concepts, emphasizing intuitive understanding over lengthy derivations, and outlines the different types of seismic waves and how they can be used to resolve Earth structure and understand earthquakes. New material and updates have been added throughout, including ambient noise methods, shear-wave splitting, back-projection, migration and velocity analysis in reflection seismology, earthquake rupture directivity, and fault weakening mechanisms. A wealth of both reworked and new examples, review questions and computer-based exercises in MATLAB (R)/Python give students the opportunity to apply the techniques they have learned to compute results of interest and to illustrate Earth's seismic properties. More advanced sections, which are not needed to understand the other material, are flagged so that instructors or students pressed for time can skip them.

The seismic ambient field allows us to study interactions between the atmosphere, the oceans and the solid Earth. The theoretical understanding of seismic ambient noise has improved substantially in the last decades, and the number of its applications has increased dramatically. With chapters written by eminent scientists from the field, this book covers a range of topics including ambient noise observations, generation models of their physical origins, numerical modelling and processing methods. The later chapters focus on applications in imaging and monitoring the internal structure of the Earth, including interferometry for time-dependant imaging and tomography. This volume thus provides a comprehensive overview of this cutting-edge discipline for graduate students studying geophysics and for scientists working in seismology and other imaging sciences.

This essential reference for graduate students and researchers provides a unified treatment of earthquakes and faulting as two aspects of brittle tectonics at different timescales. The intimate connection between the two is manifested in their scaling laws and populations, which evolve from fracture growth and interactions between fractures. The connection between faults and the seismicity generated is governed by the rate and state dependent friction laws - producing distinctive seismic styles of faulting and a gamut of earthquake phenomena including aftershocks, afterslip, earthquake triggering, and slow slip events. The third edition of this classic treatise presents a wealth of new topics and new observations. These include slow earthquake phenomena; friction of phyllosilicates, and at high sliding velocities; fault structures; relative roles of strong and seismogenic versus weak and creeping faults; dynamic triggering of earthquakes; oceanic earthquakes; megathrust earthquakes in subduction zones; deep earthquakes; and new observations of earthquake precursory phenomena.

With easy-to-understand explanations of the basic concepts, Seismic Design of Foundations examines recent and worldwide research outputs and post-earthquake reconnaissance case studies and offers practical means of applying them to the real world. Each case study also provides worked examples of new and innovative findings that reveal background information behind the codes of practice in various parts of the world as well as the lessons learned from recent large-scale earthquakes. This book aims to - explain the latest state-of-the-art research on seismic design of foundations and related issues - breakdown and explain the codes of practice into easy-to-understand concepts - showcase worked examples at the end of each chapter highlighting the concepts covered - cover case studies from all over the world, including Japan, New Zealand, India and Taiwan amongst others. Seismic Design of Foundations presents state-of-the-art information which will be ideal for any student studying postgraduate civil engineering or structural engineering as well as researchers and practitioners working in the field of earthquake geotechnical engineering.

Stoerungen im Betrieb der Klaranlagen zu erkennen und beseitigen zu koennen - das ist das Ziel dieser Veroeffentlichung. Anhand sehr guter, uberwiegend vierfarbiger Abbildungen werden Erscheinungsformen fadiger Bakterien erkennbar, die notwendigen mikroskopischen Untersuchungen werden durch ein vereinfachtes Bestimmungsschema erleichtert und angeleitet. Ausfuhrliche Praxisbeispiele erlautern die Zusammenhange und geben Hilfestellung und Ansatzpunkte bei Problemen. Dieses Handbuch gehoert auf den Arbeitsplatz des Betriebsleiters von Klaranlagen.

Nach Erhebungen der Abwassertechnischen Vereinigung (ATV) sind die offentlichen Kanalnetze teilweise stark beschadigt. Danach sollen in den alten Bundeslandern 20% der 300.000 km langen Rohrleitungen schadhaft sein. In den neuen Landern weist gar die Halfte der Abwasserkanale Schaden auf. Zur genauen Positionsbestimmung schadhafter Stellen wurden im Auftrag des BMBF u.a. neue Detektionsmethoden auf akustischer Infrarot- und Radarbasis entwickelt. Das vorliegende Handbuch bietet Kommunen und im Bereich der Kanalsanierung tatigen Unternehmen eine fundierte Hilfestellung bei der Klassifizierung von Schaden und den sich daraus ergebenden Prioritaten bei notwendigen Sanierungsmassnahmen."

Kanalnetzuberlastungen, Grundwasserabsenkungen und Hochwasserspitzen sind nur einige negative Auswirkungen der Versiegelung auf den naturlichen Wasserhaushalt. Gerade die neueren Entwicklungen hinsichtlich der Neufassung von Bodenschutzgesetzgebung, Landeswassergesetzen und kommunalen Abwassersatzungen zur Foerderung des schonenden Umgangs mit Boden und Wasser lassen die Bedeutung von oekologischen Bauweisen immer wichtiger erscheinen. Der Einsatz versickerungsfahiger Verkehrsflachenbefestigungen ist hierbei ein zunehmend unentbehrlicher Baustein, um Regenwasser wieder naturnah zu bewirtschaften und damit die weitreichenden Folgen der Versiegelung zu verringern. Beim Einsatz versickerungsfahiger Befestigungssysteme sollen aufgrund ihrer Konstruktion Niederschlage direkt auf der Flache aufgenommen und somit durch verringerte Oberflachenabflusse die Kanalisation entlastet und die Versiegelung vermindert werden.

This highly topical book, written by a leading Japanese author, provides a comprehensive study of current research in soil dynamics for earthquake engineering. The behaviour of the ground on which structures are built during earthquake conditions is crucial to understanding the behaviour of those structures. This well-illustrated text summarizes current knowledge of the subject, presenting material accumulated by Japanese and other researchers over recent years. It comprehensively covers theory, laboratory tests, and field work. It also includes helpful guidelines for civil engineers undertaking groundwork to protect structures in potential earthquake zones.

This 2006 book was born as an international tribute to Fiorenzo C. Ugolini, an outstanding soil scientist, now retired from university teaching and research. It is a synthesis of the knowledge of soils, their genesis, functions and management, and includes contributions from leading soil scientists. It provides the basic concepts as well as data and practical examples from across the discipline. The book also discusses the increasingly important role of soils in enabling the preservation of life and contains a rare attempt to cross-harmonize the Soil Groups of the World Reference Base of Soil Resources with the Orders of the Soil Taxonomy. It also considers the possible existence of extraterrestrial soils based on the findings from the last space missions. This volume will be a valuable resource for researchers and students of soil science, soil conservation, geography and landscape ecology.

An understanding of the mechanical properties of unsaturated soils is crucial for geotechnical engineers worldwide, as well as to those concerned with the interaction of structures with the ground. This book deals principally with fine-grained clays and silts, or soils containing coarser sand and gravel particles but with a significant percentage of fines.

The study of unsaturated soil is a practical subject, linking fundamental science to nature. Soils in general are inherently variable and their behaviour is not easy to analyse or predict, and unsaturated soils raise the complexity to a higher level. Even amongst practicing engineers, there is often lack of awareness of the intricacies of the subject. This book offers a perspective of unsaturated soils based on recent research and demonstrates how this dovetails with the general discipline of soil mechanics.

Following an introduction to the basic soil variables, the phases, the phase interactions and the relevance of soil structure, an up-to-date review of laboratory testing techniques is presented. This includes suction measurement and control techniques in triaxial cell testing. This is followed by an introduction to stress state variables, critical state and theoretical models in unsaturated soils.

A detailed description of the thermodynamic principles as applied to multi-phase materials under equilibrium conditions follows. These principles are then used to explore and develop a fundamental theoretical basis for analysing unsaturated soils. Soil structure is broken down into its component parts to develop equations describing the dual stress regime. The critical state strength and compression characteristics of unsaturated soils are examined and it is shown how the behaviour may be viewed as a three-dimensional model in dimensionless stress-volume space. The analysis is then extended to the work input into unsaturated soils and the development of conjugate stress, volumetric and strain-increment variables. These are used to examine the micromechanical behaviour of kaolin specimens subjected to triaxial shear strength tests and lead to observations not detectable by other means.

"Unsaturated Soils: A fundamental interpretation of soil behaviour" covers a rapidly advancing area of study, research and engineering practice and offers a deeper appreciation of the key characteristics of unsaturated soil. It provides students and researchers with a framework for understanding soil behaviour and demonstrates how to interpret experimental strength and compression data.provides engineers with a deeper appreciation of key characteristics of unsaturated soilscovers a rapidly advancing area of study, research and engineering practiceprovides students and researchers a framework for understanding soil behaviourshows how to interpret experimental data on strength and compressionthe limited number of books on the subject are all out of date

Questo eserciziario si propone di indirizzare gli Allievi verso la comprensione della materia con esercizi completamente svolti, a partire dallo schema concettuale fino a giungere all introduzione, nelle formule risolutive, dei valori numerici. Le figure, numerose e dettagliate, permettono di semplificare la descrizione della procedura per la soluzione. Frutto di alcuni anni di insegnamento dei due autori, la raccolta contiene numerosi esercizi raggruppati in nove Capitoli, che ricalcano l impostazione delle lezioni teoriche negli insegnamenti erogati alla Laurea Triennale e alla Laurea Specialistica. In Appendice sono riportati alcuni dati e formule di uso frequente. I procedimenti risolutivi non sono unici ma sono stati selezionati tra i pi semplici e intuitivi, in modo da allenare alla semplificazione. I dati numerici sono parametrizzati con riferimento alle due ultime cifre del numero di matricola per facilitarne l utilizzo in sede di esercitazione.

Natural hazards events such as earthquakes or volcanic eruptions involve activation of coupled thermo-hydro-chemo-mechanical processes in rocks. The 7th Euro-conference of Rock Physics and Geomechanics was held September 25 to 30, 2007, in Erice (Italy), to explore how rock physics experiments and models can facilitate understanding and constraint of natural hazards mechanisms, and, to foster cross-disciplinary collaborations.

The present book assembles unpublished contributions to the Erice conference. It presents new laboratory data, theoretical and numerical rock physics models and field observations relevant to the study of natural hazards. In particular, several papers are devoted to rock failure and explore the relationship between the competing deformation micro-mechanisms, as measured and characterized by acoustic emission activity and by microstructural observations, and strain localization. Several others investigate shear-induced anisotropy of mechanical and/or transport properties, both in large-scale geologic objects and in laboratory samples. The remaining papers treat various aspects of rock physics and their industrial applications such as geothermics and reservoir characterization.

The book is intended for researchers and graduate students in the Earth sciences, who are interested in surface and crustal processes, as well as for geotechnical engineers.