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Books > Professional & Technical > Civil engineering, surveying & building > Hydraulic engineering
This book discusses risk management as it applies to problem-solving for simple, complex and wicked problems faced by policy creators and implementors, project managers and systems engineers in the context of policies, large engineering projects (LEPs), projects and systems. When applying systems thinking to risk management, it can be seen that risk management applies to almost every action taken in daily life. This book: Introduces the systems approach of integrating risk management into policy creation and implementation, project management and systems engineering, such as the risk framework and the Firm Fixed Price (FFP) contract with penalties and bonuses. Introduces a number of out-of-the box concepts building on the application of the systems thinking tools in the system thinker's toolbox. Points out that integrating risk management into policy and project management and systems engineering is just good management and engineering practice. Discusses the flow of risk in a policy from creation through implementation via LEPs and simpler projects, identifying where risks arise and where they should be dealt with. Presents the risks in the relationship between policy creation, implementation, project management and systems engineering. Discusses risks throughout the policy implementation process and shows how the nature of risks changes from political to financial to technological as implementation proceeds. Discusses managing complexity and specifies the minimum number of elements in a system for it to be defined as, and managed as, complex. Points out that in most instances the traditionally ignored major implementation risk is that of poor performance by personnel. Shows how to proactively incorporate prevention into planning in order to prevent risks, as well as how to mitigate them when they occur.
Coast lines have been and still are the centre lines of civilization around the world with still increasing pressure from both sides, the hinterland and the sea, with all its foreseeable and unforeseeable impacts given by nature or mankind. While response of nature to such impacts is flexible in the way that all morphological changes with all the consequences are tolerated as part of the system, man cannot tolerate short-term or long-term changes without being threatened in its physical and economical existence. The objectives of this Advanced Research Workshop (ARW) on Environmentally Friendly Coastal Structures were: - to contribute to the critical assessment of existing knowledge in the field of coastal and environmental protection; - to identify directions for future research in that area; - to promote close working relationships between scientists from different countries and with different professional experience. Latest trends in research in coastal and environmental protection have been summarized and developed during the meeting. Seventeen papers are presented in this book, attempting to cover as completely as possible all related aspects a" coast, engineering structures, water, sediments, ecosystems in their complicated interaction.
Chittaranjan Ray, Ph. D., P. E. University of Hawaii at Manoa Honolulu, Hawaii, United States Jurgen Schubert, M. Sc. Stadtwerke Dusseldorf AG Dusseldorf, Germany Ronald B. Linsky National Water Research Institute Fountain Valley, California, United States Gina Melin National Water Research Institute Fountain Valley, California, United States 1. What is Riverbank Filtration? The purpose ofthis book is to show that riverbank filtration (RBF) isa low-cost and efficient alternative water treatment for drinking-water applications. There are two immediate benefits to the increased use of RBF: Minimized need for adding chemicals like disinfectants and coagulants to surface water to control pathogens. Decreased costs to the community without increased risk to human health. Butwhat, exactly, isRBF? In humid regions, river water naturally percolates through the ground into aquifers (which are layers of sand and gravel that contain water underground) during high-flow conditions. In arid regions, most rivers lose flow, and the percolating water passes through soil and aquifer material until it reaches the water table. During these percolation processes, potential contaminants present in river water are filtered and attenuated. If there are no other contaminants present in the aquifer or ifthe respective contaminants are present at lower concentrations, the quality of water in the aquifer can be ofhigher quality than that found in theriver. In RBF, production wells - which are placed near the banks ofrivers -pump large quantities ofwater."
The very word "barrages" is evocative. In the context of tidal waters it conjures up pictures of massive structures and environmental change. Barrages represent the engineer?s success where King Canute failed ? to stop the tide coming in. They are hardly a new concept as man has for centuries tried to harness tidal power to drive his machinery, but a new breed of barrage is emerging, aimed at regenerating depressed urban areas. One of the primary aims of such schemes has been to drown "unsightly" mud flats. If you happen to be a wading bird used to enjoying the worms that live in intertidal mud flats you may not share that perspective. Indeed, many people today tend to side with the birds, fish and other ecological wonders and often find themselves in conflict with the promoters of a barrage scheme. How far are their fears justified? Are the negative impacts as bad as some people have predicted or even worse? How accurately can the impacts be predicted by scientific methods? Can the barrage be designed and its operation controlled to mitigate any negative effects as well as to optimise its primary objective? These issues are addressed in this book by authors drawing on their experience of research and practical experience.
The second edition (1997) of this text was a completely rewritten version of the original text Basic Coastal Engineering published in 1978. This third edition makes several corrections, improvements and additions to the second edition. Basic Coastal Engineering is an introductory text on wave mechanics and coastal processes along with fundamentals that underline the practice of coastal engineering. This book was written for a senior or first postgraduate course in coastal engineering. It is also suitable for self study by anyone having a basic engineering or physical science background. The level of coverage does not require a math or fluid mechanics background beyond that presented in a typical undergraduate civil or mechanical engineering curriculum. The material p- sented in this text is based on the author's lecture notes from a one-semester course at Virginia Polytechnic Institute, Texas A&M University, and George Washington University, and a senior elective course at Lehigh University. The text contains examples to demonstrate the various analysis techniques that are presented and each chapter (except the first and last) has a collection of problems for the reader to solve that further demonstrate and expand upon the text material. Chapter 1 briefly describes the coastal environment and introduces the re- tively new field of coastal engineering. Chapter 2 describes the two-dimensional characteristics of surface waves and presents the small-amplitude wave theory to support this description.
This book is an introduction to terrestrial magnetohydrodynamics. It is a compendium of introductory lectures by experts in the field, focussing on applications in industry and the laboratory. A concise overview of the subject with references to further study.
Environmental Geomechanics covers a broad class of problems where deforming geomaterials are involved, usually coupled with fluid flow and transport of some substance. Transport of contaminants and other substances may occur in the fluids, e.g. water, water vapour and air, filling the pores of geomaterials as happens in waste disposal problems or durability problems. Mass transport also takes place in reservoir engineering problems, where the fluids involved are oil, water, and gas. All these aspects are addressed in this book together with a theoretical framework.
This comprehensive manual provides extensive information on the types of revetment available and provides guidance on the choice and design of these systems. With regard to natural and artificial watercourses information is included on revetments that incorporate some form of structural protection and revetments which combine this protection with vegetation to increase the environmental quality of the systems. Extensive use of photographs, flowcharts and diagrams allow the engineer to choose the most appropriate type of revetment and the most cost-effective design.
This book introduces fundamental, advanced, and future-oriented scientific quality management methods for the engineering and manufacturing industries. It presents new knowledge and experiences in the manufacturing industry with real world case studies. It introduces Quality 4.0 with Industry 4.0, including quality engineering tools for software quality and offers lean quality management methods for lean manufacturing. It also bridges the gap between quality management and quality engineering, and offers a scientific methodology for problem solving and prevention. The methods, techniques, templates, and processes introduced in this book can be utilized in various areas in industry, from product engineering to manufacturing and shop floor management. This book will be of interest to manufacturing industry leaders and managers, who do not require in-depth engineering knowledge. It will also be helpful to engineers in design and suppliers in management and manufacturing, all who have daily concerns with project and quality management. Students in business and engineering programs may also find this book useful as they prepare for careers in the engineering and manufacturing industries. Presents new knowledge and experiences in the manufacturing industry with real world case studies Introduces quality engineering methods for software development Introduces Quality 4.0 with Industry 4.0 Offers lean quality management methods for lean manufacturing Bridges the gap between quality management methods and quality engineering Provides scientific methodology for product planning, problem solving and prevention management Includes forms, templates, and tools that can be used conveniently in the field
This book deals with the central question of how human factors and ergonomics (HFE) might contribute to solutions for the more sustainable development of our world. The contents of the book are highly compatible with the recent political agenda for sustainable development as well as with sustainability research from other disciplines.The book aims to summarize and profile the various empirical and theoretical work arising from the field of "Human Factors and Sustainable Development" in the last decade. The book gives a systematic overview of relevant theoretical concepts, their underlying philosophies, as well as global application fields and case studies.
The catastrophic earthquakes of the last decades (Mexico City, 1985; Loma Prieta, 1989; Northridge, 1994; Kobe, 1995) have seriously undermined the reputation of steel structures, which in the past represented the most suitable solution for seismic resistant structures - even if in very few cases the performance of steel joints and members was unexpectedly bad, showing that it was due to some lack in the current design concept. As a consequence of the lessons learned from the above dramatic events, much progress has been recently achieved in the conception, design and construction, by introducing the new deals of performance-based design, including the differentiation of earthquake types, and considering all factors influencing steel structure behaviour under strong ground movement.In this scenario, the aim of the book is to transfer the most recent achievements into practical rules for the safe design of seismic resistant steel structures. The seven chapters cover the basic principles and design criteria for seismic resistant steel structures, which are applied to the main structural typologies such as moment resistant frames, braced frames and composite structures, with particular reference to connections and details.
The present volume provides a comprehensive understanding of the modern criteria, models and methods of analysis of arch dams, for normal operation conditions and under exceptional loads. This information is important for all those involved in the evaluation of the behaviour and condition of arch dams and other large structures, either for design or monitoring purpose.
The Pharoahs were masters of the Nile: they had a detailed understanding of the ways of the river. Modern Egyptians see themselves as heirs to this tradition, and as owners of the Nile waters. In the 1960's, Egypt decided to protect its increasingly-populated Nile valley from the ravages of annual flooding by building a dam. A relatively small dam in the valley of Nubia, in the region of Tushka, would have enabled the excess floodwaters to safely be diverted towards the fossil valley of the pre-Nile. However, it was decided to select a site near Aswan, making it necessary to inundate more than 250km of river valley. Over the years, this strategy has been revealed to have been faulty, and numerous irrigation schemes in upriver countries have progressively reduced the amount of water descending into Egypt. The dire warning of the 14th century oracle appears to be prophetic: "the water of the river in my country will be stopped from reaching yours, which I shall cause to die of thirst..."
Industrial assets (such as railway lines, roads, pipelines) are usually huge, span long distances, and can be divided into clusters or segments that provide different levels of functionality subject to different loads, degradations and environmental conditions, and their efficient management is necessary. The aim of the book is to give comprehensive understanding about the use of autonomous vehicles (context of robotics) for the utilization of inspection and maintenance activities in industrial asset management in different accessibility and hazard levels. The usability of deploying inspection vehicles in an autonomous manner is explained with the emphasis on integrating the total process. Key Features Aims for solutions for maintenance and inspection problems provided by robotics, drones, unmanned air vehicles and unmanned ground vehicles Discusses integration of autonomous vehicles for inspection and maintenance of industrial assets Covers the industrial approach to inspection needs and presents what is needed from the infrastructure end Presents the requirements for robot designers to design an autonomous inspection and maintenance system Includes practical case studies from industries
This book discusses the functions of revetments and the different aspects of structural performance. It includes example specifications and calculations that enable the engineer to choose the most stable, appropriate and cost-effective revetment system for a given situation. The book guides the engineer through the design process, from identifying hydraulic loading conditions and initial dimensioning of the revetment elements to detailed design of the revetment elements to ensure adequate protection against design wave conditions.
Dams and Appurtenant Hydraulic Structures, now in its second edition, provides a comprehensive and complete overview of all kinds of dams and appurtenant hydraulic structures throughout the world. The reader is guided through different aspects of dams and appurtenant hydraulic structures in 35 chapters, which are subdivided in five themes: I. Dams and appurtenant hydraulic structures - General; II. Embankment dams; III. Concrete dams; IV. Hydromechanical equipment and appurtenant hydraulic structures; V. Hydraulic schemes. Subjects treated are general questions, design, construction, surveillance, maintenance and reconstruction of various embankment and concrete dams, hydromechanical equipment, spillway structures, bottom outlets, special hydraulic structures, composition of structures in river hydraulic schemes, reservoirs, environmental effects of river hydraulic schemes and reservoirs and environmental protection. Special attention is paid to advanced methods of static and dynamic analysis of embankment dams. The wealth of experience gained by the author over the course of 35 years of research and practice is incorporated in this richly-illustrated, fully revised, updated and expanded edition. For the original Macedonian edition of Dams and Appurtenant Hydraulic Structures, Ljubomir Tanchev was awarded the Goce Delchev Prize, the highest state prize for achievements in science in the Republic of Macedonia. This work is intended for senior students, researchers and professionals in civil, hydraulic and environmental engineering and dam construction and exploitation.
Presents an up-to-date description of current and new hydraulic fracturing processes * Details Emerging Technologies such as Fracture Treatment Design, Open Hole Fracturing, Screenless Completions, Sand Control, Fracturing Completions and Productivity * Covers Environmental Impact issues including Geological Disturbance; Chemicals used in Fracturing; General Chemicals; Toxic Chemicals; and Air, Water, Land, and Health impacts * Provides many process diagrams as well as tables of feedstocks and their respective products
Safety Science Research: Evolution, Challenges and New Directions provides a unique perspective into the latest developments of safety science by putting together, for the first time, a new generation of authors with some of the pioneers of the field. Forty years ago, research traditions were developed, including, among others, high-reliability organisations, cognitive system engineering or safety regulations. In a fast-changing world, the new generation introduces, in this book, new disciplinary insights, addresses contemporary empirical issues, develops new concepts and models while remaining critical of safety research practical ambitions. Their ideas are then reflected and discussed by some of the pioneers of safety science. Features Allows the reader to discover how contemporary safety issues are currently framed by a new generation of researchers, brought together for the first time Includes an introduction and guide to the development of safety science over the last four decades Features an extraordinary collection of expert contributors, including pioneers of safety research, reflecting the evolution of the discipline and offering insightful commentary on the current and future state of the field Serves as an invaluable reference and guide for safety professionals and students from any established disciplines such as sociology, engineering, psychology, political science or management as well as dedicated safety programmes Some figures in the eBook are in colour
Prescribed Form of Record for a Large Raised Reservoir is fully updated to incorporate the latest amends to the Reservoirs Act. Supervising engineers are required to verify that works recommended by the inspecting engineer are being carried out and complete a `prescribed form of record'. This updated edition of the Prescribed Form provides the ability to detail information about the reservoir such as water levels and depth, volume, dam crest height, and details of leakages and repairs.
Rapid growth in water requirements makes it necessary to
increase the amount of water drawn from rivers. The dams necessary
for capturing river water have to be built to resist damage when
large floods occur, and an idea of the possible destructive power
of floods is given by the front photograph. The need for protection
results in thick sill structures fitted with gates, and "upstream"
and "downstream" cut-off walls. Sediment transported by rivers
settles forming deposits behind dams, where flow velocities
decrease. On the other hand, where flow velocities are high through
hydraulic machinery (pums and turbines) fed from the dam, it can be
necessary to remove even fine sand from the water, and also to
remove floating debris. Various hydro-mechanical installations
(including gates and screens) are introduced into the flow circuits
to deal with sediment and debris problems.
Practical Channel Hydraulics is a technical guide for estimating flood water levels in rivers using the innovative software known as the Conveyance and Afflux Estimation System (CES-AES). The stand alone software is freely available at HR Wallingford's website www.river-conveyance.net. The conveyance engine has also been embedded within industry standard river modelling software such as InfoWorks RS and Flood Modeller Pro. This 2nd Edition has been greatly expanded through the addition of Chapters 6-8, which now supply the background to the Shiono and Knight Method (SKM), upon which the CES-AES is largely based. With the need to estimate river levels more accurately, computational methods are now frequently embedded in flood risk management procedures, as for example in ISO 18320 ('Determination of the stage-discharge relationship'), in which both the SKM and CES feature. The CES-AES incorporates five main components: A Roughness Adviser, A Conveyance Generator, an Uncertainty Estimator, a Backwater Module and an Afflux Estimator. The SKM provides an alternative approach, solving the governing equation analytically or numerically using Excel, or with the short FORTRAN program provided. Special attention is paid to calculating the distributions of boundary shear stress distributions in channels of different shape, and to appropriate formulations for resistance and drag forces, including those on trees in floodplains. Worked examples are given for flows in a wide range of channel types (size, shape, cover, sinuosity), ranging from small scale laboratory flumes (Q = 2.0 1s-1) to European rivers (~2,000 m3s-1), and large-scale world rivers (> 23,000 m3s-1), a ~ 107 range in discharge. Sites from rivers in the UK, France, China, New Zealand and Ecuador are considered. Topics are introduced initially at a simplified level, and get progressively more complex in later chapters. This book is intended for post graduate level students and practising engineers or hydrologists engaged in flood risk management, as well as those who may simply just wish to learn more about modelling flows in rivers.
The Middle Zambezi, host to a rich biodiversity, is located in the central part of the Zambezi River Basin which covers eight Southern African Countries. The area is located downstream of three hydropower schemes. In the last decades, the floodplain riparian tree, the Faidherbia albida, vital for the local wild life, has shown a worrying decrease in its regeneration rates. This thesis explores establishing the environmental flow regime for the Middle Zambezi reach in order to minimise the impact of the upstream hydropower schemes on the river environment, using the Faidherbia albida tree as a biological indicator. The research identified that the current dam operations have completely altered the natural hydrological rhythm from pre-Kariba dam dry season flows of 100-200 m3/s increasing to 1,000-1,500 m3/s. The sudden closure of the dam floodgates can be linked to the observed river channel-widening phenomenon. In addition, the Faidherbia albida tree now experiences longer flood residence over the floodplain, making it inaccessible to animals to allow for regeneration. In order to save the F. albida tree, a two-pronged environmental flow regime is proposed of releasing a moderate flood of 5,800 m3/s once in 5 years, for 5 to 6 weeks in the months of February to March, and phasing the spillway gates closure over a period of 3 to 4 weeks to keep the floodplain wet enough until the months of May and June. Phasing of the spillway gate closure would also mitigate the excessive bank erosion.
Effective coastal engineering is expensive, but it is not as costly as neglect or ineffective intervention. Good practice needs to be based on sound principles, but theoretical work and modelling also need to be well grounded in practice, which is continuously evolving. Conceptual and detailed design has been advanced by new industry publications since the publication of the second edition. This third edition provides a number of updates: the sections on wave overtopping have been updated to reflect changes brought in with the recently issued EurOtop II manual; a detailed worked example is given of the calculation of extreme wave conditions for design; additional examples have been included on the reliability of structures and probabilistic design; the method for tidal analysis and calculation of amplitudes and phases of harmonic constituents from water level time series has been introduced in a new appendix together with a worked example of harmonic analysis; and a real-life example is included of a design adapting to climate change. This book is especially useful as an information source for undergraduates and engineering MSc students specializing in coastal engineering and management. Readers require a good grounding in basic fluid mechanics or engineering hydraulics, and some familiarity with elementary statistical concepts.
Flood inundation models enable us to make hazard predictions for floodplains, mitigating increasing flood fatalities and losses. This book provides an understanding of hydraulic modelling and floodplain dynamics, with a key focus on state-of-the-art remote sensing data, and methods to estimate and communicate uncertainty. Academic researchers in the fields of hydrology, climate change, environmental science and natural hazards, and professionals and policy-makers working in flood risk mitigation, hydraulic engineering and remote sensing will find this an invaluable resource. This volume is the third in a collection of four books on flood disaster management theory and practice within the context of anthropogenic climate change. The others are: Floods in a Changing Climate: Extreme Precipitation by Ramesh Teegavarapu, Floods in a Changing Climate: Hydrological Modeling by P. P. Mujumdar and D. Nagesh Kumar and Floods in a Changing Climate: Risk Management by Slodoban Simonovic.
Manufacturing Techniques for Materials: Engineering and Engineered provides a cohesive and comprehensive overview of the following: (i) prevailing and emerging trends, (ii) emerging developments and related technology, and (iii) potential for the commercialization of techniques specific to manufacturing of materials. The first half of the book provides the interested reader with detailed chapters specific to the manufacturing of emerging materials, such as additive manufacturing, with a valued emphasis on the science, technology, and potentially viable practices specific to the manufacturing technique used. This section also attempts to discuss in a lucid and easily understandable manner the specific advantages and limitations of each technique and goes on to highlight all of the potentially viable and emerging technological applications. The second half of this archival volume focuses on a wide spectrum of conventional techniques currently available and being used in the manufacturing of both materials and resultant products. Manufacturing Techniques for Materials is an invaluable tool for a cross-section of readers including engineers, researchers, technologists, students at both the graduate level and undergraduate level, and even entrepreneurs. |
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