This is the 2nd edition of one of the most comprehensive accounts of debris flow, describing both theoretical and applied aspects. In the first part, the fundamental mechanical characteristics are discussed, including flow characteristics, type classification, mechanics, occurrence and development, fully developed flow, and deposition processes. The second part sheds light on the application of the theories presented in computer-simulated reproductions of real disasters. Special attention is paid to debris flow controlling structures, design effectiveness and performance, soft countermeasure problems, such as the identification of debris flow prone ravines and the prediction of occurrence by means of precipitation threshold. This new edition has been wholly revised and updated, and now includes a new chapter on sediment runoff models that include debris flow processes and new sections concerning landslides. The qualitative and fundamental character of this text makes it an excellent textbook for graduate-level courses and it is recommended reading for professionals in engineering, geosciences and water resources who are working on the mechanics and countermeasures of debris flow. The original, Japanese version of this book was awarded the 'Publishing Culture Prize' by the Japanese Society of Civil Engineers (2004). Tamotsu Takahashi is Professor Emeritus at the University of Kyoto. In addition to his academic positions, he is the Director of the Association for Disaster Prevention Research in Kyoto. Professor Takahashi began his career in flood dynamics research, and increasingly focused on debris flow and flood hazards. He has been honoured with several awards from the Japan Society of Civil Engineers and the Japan Society of Erosion Control Engineering. An earlier book entitled 'Debris Flow', by Tamotsu Takahashi, in the book series of the International Association of Hydraulic Engineering and Research, was published by Balkema Publishers, now a part of the Taylor & Francis Group.

A Rigorous and Definitive Guide to Soil Liquefaction Soil liquefaction occurs when soil loses much of its strength or stiffness for a time-usually a few minutes or less-and which may then cause structural failure, financial loss, and even death. It can occur during earthquakes, from static loading, or even from traffic-induced vibration. It occurs worldwide and affects soils ranging from gravels to silts. From Basic Physical Principles to Engineering Practice Soil Liquefaction has become widely cited. It is built on the principle that liquefaction can, and must, be understood from mechanics. This second edition is developed from this premise in three respects: with the inclusion of silts and sandy silts commonly encountered as mine tailings, by an extensive treatment of cyclic mobility and the cyclic simple shear test, and through coverage from the "element" scale seen in laboratory testing to the evaluation of "boundary value problems" of civil and mining engineering. As a mechanics-based approach is necessarily numerical, detailed derivations are provided for downloadable open-code software (in both Excel/VBA and C++) including code verifications and validations. The "how-to-use" aspects have been expanded as a result of many conversations with other engineers, and these now cover the derivation of soil properties from laboratory testing through to assessing the in situ state by processing the results of cone penetration testing. Downloadable software is supplied on www.crcpress.com/product/isbn/9781482213683 Includes derivations in detail so that the origin of the equations is apparent Provides samples of source code so that the reader can see how complex-looking differentials actually have pretty simple form Offers a computable constitutive model in accordance with established plasticity theory Contains case histories of liquefaction Makes available downloads and source data on the CRC Press website Soil Liquefaction: A Critical State Approach, Second Edition continues to cater to a wide range of readers, from graduate students through to engineering practice.

Over the past decades a great variety of anchor types has been developed for a multitude of different applications in soils, jointed rock or homogeneous concrete, and thus the experiences gained served a basis for futher development. Special importance was attached to the design of permanent anchors with protection against corrosion and to in situ monitoring in order to ensure the permanent contribution of anchors to the stability of the structure. More than 50 papers are focussing subjects that are of interest to designers, manufacturers, contractors and owners and are dealing with the topics load bearing capacity and effect of anchors, history cases, types of anchors as well as protection against corrosion and long term behaviour.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Instant access to the latest geotechnical engineering dataFully updated to include the 2012 International Building Code (IBC), Geotechnical Engineer's Portable Handbook, Second Edition, features a wealth of on-the-job geotechnical and construction related information in a convenient, quick-reference format. This practical resource is filled with essential data, formulas, and guidelines you can access right away. Detailed tables, charts, graphs, and illustrations are included throughout the book for ease of use in the field. Coverage includes: Field exploration Laboratory testing Soil and rock classification Phase relationships Effective stress and stress distribution Shear strength Permeability and seepage Settlement analyses Bearing capacity analyses Pavement and pipeline design Expansive soil Slope stability Geotechnical earthquake engineering Erosion analyses Retaining walls Deterioration Foundations Grading and other site improvement methods Groundwater and percolation tests Excavation, underpinning, and field lead tests Geosynthetics Instrumentation International Building Code regulations for soils International Building Code regulations for foundations

PART A: PROPERTIES OF SUBSURFACE MATERIALS.

Identification and Classification of Soils and Rocks.

Hydraulic Properties of Soil and Rock.

Consolidation Characteristics of Soils.

Stress-Deformation-Strength Characteristics of Soil and Rock.

Techniques of Subsurface Investigation.

Character of Natural Deposits.

Program of Subsurface Exploration.

PART B: TYPES OF FOUNDATIONS AND METHODS OF CONSTRUCTION.

Excavating and Bracing.

Drainage and Stabilization.

Footing and Raft Foundations.

Foundations on Compacted Fill.

Pile Foundations.

Pier Foundations.

Pier Shafts, Retaining Walls, and Abutments.

Shoring and Underpinning.

Damage Due to Construction Operations.

PART C: SELECTION OF FOUNDATION TYPE AND BASIS FOR DESIGN.

Factors Determining Type of Foundation.

Foundations on Clay and Plastic Silt.

Foundations on Sand and Nonplastic Silt.

Foundations on Collapsing and Swelling Soils.

Foundations on Nonuniform Soils.

Foundations on Rock.

PART D: DESIGN OF FOUNDATIONS AND EARTH RETAINING STRUCTURES.

Individual Column and Wall Footings.

Footings Subjected to Moment.

Combined Footings and Rafts.

Retaining Walls and Abutments.

Flexible Earth-Retaining Structures.

Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition combines aspects of engineering seismology, structural and geotechnical earthquake engineering to assemble the vital components required for a deep understanding of response of structures to earthquake ground motion, from the seismic source to the evaluation of actions and deformation required for design, and culminating with probabilistic fragility analysis that applies to individual as well as groups of buildings. Basic concepts for accounting for the effects of soil-structure interaction effects in seismic design and assessment are also provided in this second edition. The nature of earthquake risk assessment is inherently multi-disciplinary. Whereas this book addresses only structural safety assessment and design, the problem is cast in its appropriate context by relating structural damage states to societal consequences and expectations, through the fundamental response quantities of stiffness, strength and ductility. This new edition includes material on the nature of earthquake sources and mechanisms, various methods for the characterization of earthquake input motion, effects of soil-structure interaction, damage observed in reconnaissance missions, modeling of structures for the purposes of response simulation, definition of performance limit states, fragility relationships derivation, features and effects of underlying soil, structural and architectural systems for optimal seismic response, and action and deformation quantities suitable for design. Key features: * Unified and novel approach: from source to fragility * Clear conceptual framework for structural response analysis, earthquake input characterization, modelling of soil-structure interaction and derivation of fragility functions * Theory and relevant practical applications are merged within each chapter * Contains a new chapter on the derivation of fragility * Accompanied by a website containing illustrative slides, problems with solutions and worked-through examples Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition is designed to support graduate teaching and learning, introduce practising structural and geotechnical engineers to earthquake analysis and design problems, as well as being a reference book for further studies.

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.

The Gulf of Mexico Basin is one of the most prolific hydrocarbon-producing basins in the world, with an estimated endowment of 200 billion barrels of oil equivalent. This book provides a comprehensive overview of the basin, spanning the US, Mexico and Cuba. Topics covered include conventional and unconventional reservoirs, source rocks and associated tectonics, basin evolution from the Mesozoic to Cenozoic Era, and different regions of the basin from mature onshore fields to deep-water subsalt plays. Cores, well logs and seismic lines are all discussed providing local, regional and basin-scale insights. The scientific implications of seminal events in the basin's history are also covered, including sedimentary effects of the Chicxulub Impact. Containing over 200 color illustrations and 50 stratigraphic cross-sections and paleogeographic maps, this is an invaluable resource for petroleum industry professionals, as well as graduate students and researchers interested in basin analysis, sedimentology, stratigraphy, tectonics and petroleum geology.

This book provides senior undergraduate students, master students and structural engineers who do not have a background in the field with core knowledge of structural earthquake engineering that will be invaluable in their professional lives. The basics of seismotectonics, including the causes, magnitude, and intensity of earthquakes, are first explained. Then the book introduces basic elements of seismic hazard analysis and presents the concept of a seismic hazard map for use in seismic design. Subsequent chapters cover key aspects of the response analysis of simple systems and building struc tures to earthquake ground motions, design spectrum, the adoption of seismic analysis procedures in seismic design codes, seismic design principles and seismic design of reinforced concrete structures. Helpful worked examples on seismic analysis of linear, nonlinear and base isolated buildings, earthquake-resistant design of frame and frame-shear wall systems are included, most of which can be solved using a hand calculator.

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.

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

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.

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.

Using an engineer's perspective, it offers a concrete account of the basic facts and experiences regarding the behavior of different rock types in engineering construction. Details geological exploration techniques, stressing drilling and logging core samples. Features a chapter on active faults in engineering projects including legal arguments about project sites. Illustrative case studies, ranging from the Auburn Dam controversy to international examples of single collapse problems, aid in students' awareness of rock mass propensities and structures.

Introduces a new approach to rock mechanics called ``block theory,'' which formalizes procedures for selecting proper shapes and orientations for excavations in hard jointed rock. Applies block theory to rock slopes and underground excavations, and covers the Q theory of rock classification, the empirical criterion of joint shear strength, rock bolting, properties of weak rocks, statistical frequency of jointing, an empirical criterion of rock strength, and design of underground supports. Contains many new problems with worked-out solutions.

Die Autorin erlAutert die Methoden der Geostatistik und deren Anwendung speziell in der hydrogeologischen bzw. umweltgeologischen Praxis. Nach der EinfA1/4hrung in die Theorie der ortsabhAngigen Variablen und deren Bedeutung fA1/4r hydrogeologische und umweltbezogene Fragestellungen wird die rAumlich-statistische Datenanalyse - die Variographie - vorgestellt. AnschlieAend werden die Familie der geostatistischen SchAtzmethoden - das Kriging - sowie Algorithmen der stochastischen Erzeugung von Parameterfeldern - die geostatistische Simulation - dargestellt. Abgerundet wird der Inhalt mit Methoden der Probenahmeoptimierung fA1/4r Fragen der Boden- und Grundwasserkontamination. Alle Abschnitte des Buches werden anhand praktischer Fallstudien illustriert. Auch die EinsatzmAglichkeit leicht zugAnglicher, preiswerter Programme wird beschrieben und diskutiert.

Many countries are increasingly threatened by major landslide disasters and fatalities due to extreme weather events which have major implications for public safety and the sustainability of infrastructure and the built environment. A further increase in such a trend could come from climate change. This book helps to fill in the gap due to the fact that landslide hazards are commonly not covered under the policy debate on climate change. The book highlights the importance of raising awareness to the challenges of landslide hazards due to climate impact. It provides a holistic frame for understanding the key issues and new tools that could be used to assess and manage the landslide risks. The book gathers contributions from 21 countries and regions in the form of national reports or summaries with respect to four key aspects: a) the methods used for evaluating changing weather and changing landslide patterns; b) the changing weather patterns; c) the changing landslide patterns and hazard scenarios; d) the applications to risk management and the formulation of adaptation measures. Recommendations are made for enhanced preparedness and resilience. Improved crisis management and areas for future work are suggested.