CUT AND COVER METRO STRUCTURES GEO STRUCTURAL DESIGN AN INTEGRATED APPROACH
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Because of their complexity and scale, metro structures capture all the essential aspects of a cut-and-cover structure, and so are given primary focus in this book. The design of a metro construction is outlined coherently and in detail; and the reader is shown how to apply this design process equally well to other, relatively simple, cut-and-cover structures. Geotechnical and structural engineering principles are combined with both design and construction practice to make this book a unique guide for engineers. See www.cutandcoverstructures.com/ for further information.
Pseudo-static analysis is still the most-used method to assess the stability of geotechnical systems that are exposed to earthquake forces. However, this method does not provide any information about the deformations and permanent displacements induced by seismic activity. Moreover, it is questionable to use this approach when geotechnical systems are affected by frequent and rare seismic events. Incidentally, the peak ground acceleration has increased from 0.2-0.3 g in the seventies to the current value of 0.6-0.8 g. Therefore, a shift from the pseudo-static approach to performance-based analysis is needed. Over the past five years considerable progress has been made in Earthquake Geotechnical Engineering Design (EGED). The most recent advances are presented in this book in 6 parts. The evaluation of the site amplification is covered in Part I of the book. In Part II the evaluation of the soil foundation stability against natural slope failure and liquefaction is treated. In the following 3 Parts of the book the EGED for different geotechnical systems is presented as follows: the design of levees and dams including natural slopes in Part III; the design of foundations and soil structure interaction analysis in Part IV; underground structures in Part V. Finally in Part VI, new topics like the design of reinforced earth retaining walls and landfills are covered.
Internationally, the mechanized excavation of tunnels has intensified in the last two decades, as the number of tunnels being constructed for subways and railway underpasses increases. The subject of mechanized tunnelling in urban areas has not previously received the attention that it deserves, despite there being specific hazards associated with the construction of tunnels in metropolitan areas, including poor ground conditions, water tables higher than the level of tunnels, and subsidence leading to damage to the existing structures on the surface. The application of technologies for achieving the stability of the tunnel and for minimizing surface settlement is described in this book. Accurate characterization of the ground; rigorous assessment and management of risk from design to maintenance; the correct choice of a tunnel boring machine and a plan for the advancement of the tunnel; specific excavation procedures and real-time monitoring of excavation parameters are all discussed in this thorough work.
Author : Abhas K. Jha
ISBN : 9780821394779
Genre : Business & Economics
File Size : 45.42 MB
Format : PDF
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Urban flooding is an increasing challenge today to the expanding cities and towns of developing countries. This Handbook is a state-of-the art, user-friendly operational guide that shows decision makers and specialists how to effectively manage the risk of floods in rapidly urbanizing settings--and within the context of a changing climate.
Author : Georg Anagnostou
ISBN : 9781315887272
Genre : Technology & Engineering
File Size : 86.94 MB
Format : PDF, Mobi
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Underground – the way to the future was the motto of the World Tunnel Congress 2013 in Geneva, Switzerland. The use of underground space has gained importance during the last years due to the tremendous global urbanization, the high demand on transportation capacities and energy production. All this result in a wider range of use of underground space: besides the traditional road, railway, metro and utility tunnels, more and more other functionalities of modern life are placed under ground in order to free the surface for other uses. The 300 papers of the present book cover important aspects of modern underground infrastructures: Development and use of underground space; project planning and implementation (construction management, risk control, cost estimation and scheduling, contracting practices); design and analysis methods and considerations; construction technology developments; tunnel operation (safety, maintenance, rehabilitation and repair); case histories (learning from failures, long deep tunnels, underground construction for hydropower). Underground – the way to the future will be invaluable to specialists, contractors and design engineers in underground planning, construction and tunnelling worldwide, and to academics interested in underground and geotechnical engineering.
In this edited volume on advances in forensic geotechnical engineering, a number of technical contributions by experts and professionals in this area are included. The work is the outcome of deliberations at various conferences in the area conducted by Prof. G.L. Sivakumar Babu and Dr. V.V.S. Rao as secretary and Chairman of Technical Committee on Forensic Geotechnical Engineering of International Society for Soil Mechanics and Foundation Engineering (ISSMGE). This volume contains papers on topics such as guidelines, evidence/data collection, distress characterization, use of diagnostic tests (laboratory and field tests), back analysis, failure hypothesis formulation, role of instrumentation and sensor-based technologies, risk analysis, technical shortcomings. This volume will prove useful to researchers and practitioners alike.
Author : R. Alejano
ISBN : 9781315749525
Genre : Technology & Engineering
File Size : 35.92 MB
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Rock Engineering and Rock Mechanics: Structures in and on Rock Masses covers the most important topics and state-of-the-art in the area of rock mechanics, with an emphasis on structures in and on rock masses. The 255 contributions (including 6 keynote lectures) from the 2014 ISRM European Rock Mechanics Symposium (EUROCK 2014, Vigo, Spain, 27-29 May 2014) are subdivided under the following 10 headings: - Rock properties and testing methods - Rock mass characterization - Rock mechanics for infrastructures - Mining and quarrying rock mechanics - Design methods and analysis - Monitoring and back analysis - Excavation and support - Case histories and Preservation of natural stone - Petroleum engineering, hydro-fracking and CO2 storage - Applicability of EUROCODE-7 in rock engineering Rock Engineering and Rock Mechanics: Structures in and on Rock Masses will be of interest to rock mechanics academics as well as to professionals who are involved in the various branches of rock engineering.
This richly-illustrated reference guide presents innovative techniques focused on reducing time, cost and risk in the construction and maintenance of underground facilities: A primary focus of the technological development in underground engineering is to ease the practical execution and to reduce time, cost and risk in the construction and maintenance of underground facilities such as tunnels and caverns. This can be realized by new design tools for designers, by instant data access for engineers, by virtual prototyping and training for manufacturers, and by robotic devices for maintenance and repair for operators and many more advances. This volume presents the latest technological innovations in underground design, construction, and operation, and comprehensively discusses developments in ground improvement, simulation, process integration, safety, monitoring, environmental impact, equipment, boring and cutting, personnel training, materials, robotics and more. These new features are the result of a big research project on underground engineering, which has involved many players in the discipline. Written in an accessible style and with a focus on applied engineering, this book is aimed at a readership of engineers, consultants, contractors, operators, researchers, manufacturers, suppliers and clients in the underground engineering business. It may moreover be used as educational material for advanced courses in tunnelling and underground construction.
Author : Board on Behavioral, Cognitive, and Sensory Sciences
ISBN : 9780309072960
Genre : Social Science
File Size : 45.44 MB
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New Horizons in Health discusses how the National Institutes of Health (NIH) can integrate research in the social, behavioral, and biomedical sciences to better understand the causes of disease as well as interventions that promote health. It outlines a set of research priorities for consideration by the Office of Behavioral and Social Sciences Research (OBSSR), with particular attention to research that can support and complement the work of the National Institutes of Health. By addressing the range of interactions among social settings, behavioral patterns, and important health concerns, it highlights areas of scientific opportunity where significant investment is most likely to improve nationaland globalhealth outcomes. These opportunities will apply the knowledge and methods of the behavioral and social sciences to contemporary health needs, and give attention to the chief health concerns of the general public.