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Closed Face Tunnelling Machines And Ground Stability
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Book Synopsis Closed-face Tunnelling Machines and Ground Stability by : British Tunnelling Society
Download or read book Closed-face Tunnelling Machines and Ground Stability written by British Tunnelling Society and published by Thomas Telford Publishing. This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the potential for ground instability or collapse when using closed face tunneling machines, and investigates the efficacy of various ground investigation techniques in urban areas.
Book Synopsis Introduction to Tunnel Construction by : David Chapman
Download or read book Introduction to Tunnel Construction written by David Chapman and published by CRC Press. This book was released on 2017-12-21 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunnelling provides a robust solution to a variety of engineering challenges. It is a complex process, which requires a firm understanding of the ground conditions as well as structural issues. This book covers the whole range of areas that you need to know in order to embark upon a career in tunnelling. It also includes a number of case studies of real tunnel projects, to demonstrate how the theory applies in practice. The coverage includes: Both hard-rock and soft-ground conditions Site investigation, parameter selection, and design considerations Methods of improving the stability of the ground and lining techniques Descriptions of the various tunnelling techniques Health and safety considerations Monitoring of tunnels during construction Clear, concise, and heavily illustrated, this is a vital text for final-year undergraduate and MSc students and an invaluable starting point for young professionals.
Book Synopsis Tunnel Lining Design Guide by : British Tunnelling Society
Download or read book Tunnel Lining Design Guide written by British Tunnelling Society and published by Thomas Telford. This book was released on 2004 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of geotechnical and geophysical -- pr) operies 160 -- 10.3 4 Design of tunnel linings 1 61 -- 10.4 Instrumentation of the CTRL North Downs Tunnel 164 -- 10.5 References 165 -- Appendix I Abbreviations and symbols 166 -- Appendix 2 Risk management 168 -- A2l Introduction 168 -- A2.2 Scope 168 -- A23 Risk register 169 -- A21. 1 When to use the risk register 169 -- A2.32 Whalt is it? 169 -- A2.3.3 Assessment process 169 -- A2.3.4 Key steps 169 -- A2.3.5 Risk assessment, qualitative or -- quantitative? 171 -- A2.3.6 R anaingt risk 175 -- A2.4 References 17.
Book Synopsis Handbook on Tunnels and Underground Works by : Emilio Bilotta
Download or read book Handbook on Tunnels and Underground Works written by Emilio Bilotta and published by CRC Press. This book was released on 2022-09-19 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book set provides a new, global, updated, thorough, clear, and practical risk-based approach to tunnelling design and construction methods, and discusses detailed examples of solutions applied to relevant case histories. It is organized in three sequential and integrated volumes: Volume 1: Concept – Basic Principles of Design Volume 2: Construction – Methods, Equipment, Tools and Materials Volume 3: Case Histories and Best Practices The book covers all aspects of tunnelling, giving useful and practical information about design (Vol. 1), construction (Vol. 2), and best practices (Vol. 3). It provides the following features and benefits: updated vision on tunnelling design, tools, materials, and construction balanced mix of theory, technology, and applied experience different and harmonized points of view from academics, professionals, and contractors easy consultation in the form of a handbook risk-oriented approach to tunnelling problems. The tunnelling industry is amazingly widespread and increasingly important all over the world, particularly in developing countries. The possible audience of the book are engineers, geologists, designers, constructors, providers, contractors, public and private customers, and, in general, technicians involved in the tunnelling and underground works industry. It is also a suitable source of information for industry professionals, senior undergraduate and graduate students, researchers, and academics.
Book Synopsis Mechanized Tunnelling in Urban Areas by : Vittorio Guglielmetti
Download or read book Mechanized Tunnelling in Urban Areas written by Vittorio Guglielmetti and published by CRC Press. This book was released on 2008-01-07 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis On the Face Stability of Shallow Tunnels in Sand by : Ansgar Kirsch
Download or read book On the Face Stability of Shallow Tunnels in Sand written by Ansgar Kirsch and published by Logos Verlag Berlin GmbH. This book was released on 2009 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various models have been proposed for the prediction of the necessary support pressure at the face of a shallow tunnel. To assess their quality, the collapse of a tunnel face was modelled with small scale model tests at single gravity. The evolution of the failure mechanism and the development of the support force at the face in dry sand were investigated. The observed displacement patterns show a negligible influence of overburden on the extent and evolution of the failure zone. The latter is significantly influenced, though, by the initial density of the sand: in dense sand a chimney-wedge-type collapse mechanism developed, which propagated towards the soil surface. Initially loose sand did not show any development of a discrete collapse mechanism. The necessary support force was neither influenced by the overburden nor the initial density. A comparison with quantitative predictions by several theoretical models showed that the measured necessary support pressure is overestimated by most of the models. Only those by Vermeer/Ruse and Leca/Dormieux were able to predict the necessary support pressure on a 95 % confidence level. A three-dimensional finite element investigation of face stability served to assess the ability of two constitutive models, an elastoplastic Mohr-Coulomb and a hypoplastic model, to predict the necessary support pressure and the displacements at the tunnel face. The simulation of the small scale experiments revealed that the observed necessary support pressure and incremental displacements were predicted sufficiently well with both constitutive models.
Book Synopsis Prediction of Instability and Ground Movements During Tunnel Construction in Non-homogenous Conditions by : Vasiliki Founta
Download or read book Prediction of Instability and Ground Movements During Tunnel Construction in Non-homogenous Conditions written by Vasiliki Founta and published by . This book was released on 2018 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in tunneling technology, notably in the widespread use of closed-face tunneling boring machines, have reduced risks and greatly increased the productivity of underground construction projects. For shallow tunnels in 'soft ground', instabilities can create collapse mechanisms that propagate to the ground surface, while the prediction and control of tunnel-induced ground deformations remain a key challenge. These problems are especially significant for 'mixed face' conditions, where the tunnel boring machine encounters soils of contrasting mechanical and/or hydraulic properties. This thesis uses finite element simulations to investigate the control of face stability and ground deformations for shallow tunnels in soft ground. The primary control parameters of interest are the face pressures imposed by earth pressure balance (EPB) or slurry shield machines, and the grouting pressures used to control deformations around the tail void at the rear of the tunnel shield. Stability is evaluated by methods of (c-phi) strength reduction, for a range of ground conditions including i) undrained failure in low permeability clays with continuous and discontinuous (mixed face) strength profiles; and ii) drained shearing in high permeability sands above and below the water table, where the closed-face conditions at the tunnel face provide an impermeable membrane. The numerical results are synthesized into a series of generalized design charts for immediate application. Numerical simulations using 3D finite element models are also used to investigate the factors influencing ground movements for closed-face tunneling operations using a relatively simple elastic-perfectly plastic model of soil behavior. These analyses show that maximum surface deformations above the tunnel can be estimated by simple addition of constituent sources associated with the face pressure, shield shape (conicity), machine weight (buoyancy) and grouting pressure. The research proposes a simplified method for predicting the surface settlements based on analytical parameterization of the numerical results, enabling direct design of parameters for controlling ground deformations associated with tunneling for mixed-face conditions in clays. The proposed methodology for predicting ground settlement has been evaluated using data from three well-documented case studies: 1) Crossrail C300 beneath Hyde Park in London, where tunnels were bored through units of stiff clay; 2) Downtown Line DTL3 (C933) in Singapore where tunnels traversed an interface between stiff Old Alluvium and overlying soft marine clays; and 3) northern sections of the MTRA Blue Line in Bangkok, where tunnels were built below the interface between soft and stiff clays. The comparisons between computed and measured data from these projects show that the proposed generic design method achieves comparable agreement to site specific numerical simulations and empirical methods such as ANN. Further studies are now needed to extend the model for mixed face conditions with contrasting permeability.
Book Synopsis Geotechnical Aspects of Underground Construction in Soft Ground. 2nd Edition by : Mohammed Elshafie
Download or read book Geotechnical Aspects of Underground Construction in Soft Ground. 2nd Edition written by Mohammed Elshafie and published by CRC Press. This book was released on 2022-12-26 with total page 2036 pages. Available in PDF, EPUB and Kindle. Book excerpt: GEOTECHNICAL ASPECTS OF UNDERGROUND CONSTRUCTION IN SOFT GROUND comprises a collection of 112 contributions presented at the Tenth International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, held in Cambridge, United Kingdom, 27-29th June 2022. This 2nd edition also includes four general reports on the symposium themes which give an overview of the papers submitted to the symposium, covered in four technical sessions. The symposium is the latest in a series which began in New Delhi in 1994, and was followed by symposia in London (1996), Tokyo (1999), Toulouse (2002), Amsterdam (2005), Shanghai (2008), Rome (2011), Seoul (2014) and Sao Paulo (2017). This symposium was organised by the Geotechnical Research Group at the University of Cambridge, under the auspices of the Technical Committee TC204 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). Geotechnical Aspects of Underground Construction in Soft Ground includes contributions from more than 25 countries on the research, design and construction of underground works in soft ground. The contributions cover the following themes: Field case studies Sensing technologies and monitoring for underground construction in soft ground Physical and numerical modelling of tunnels and deep excavations in soft ground Seismic response of underground infrastructure in soft ground Design and application of ground improvement for underground construction Ground movements, interaction with existing structures and mitigation measures Similar to previous editions, GEOTECHNICAL ASPECTS OF UNDERGROUND CONSTRUCTION IN SOFT GROUND represents a valuable source of reference on the current practice of analysis, design, and construction of tunnels and deep excavations in soft ground. The book is particularly aimed at academics and professionals interested in geotechnical and underground engineering.
Download or read book Tunnelling written by Barry N. Whittaker and published by . This book was released on 1990 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanised Shield Tunnelling by : Bernhard Maidl
Download or read book Mechanised Shield Tunnelling written by Bernhard Maidl and published by John Wiley & Sons. This book was released on 2013-05-20 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanised shield tunnelling has developed considerably since the publication of the first edition of this book. Challenging tunnel projects under difficult conditions demand innovative solutions, which has led to constant further development and innovation in process technology, constructions operations and the machines and materials used. The book collects the latest state of technology in mechanised shield tunnelling. It describes the basics of mechanised tunnelling technology and the various types of machines and gives calculation methods and constructural advice. Further chapters cover excavation tools, muck handling, tunnel support, surveying and steering as well as workplace safety. There is also detailled information about contractual aspects and process controlling.
Book Synopsis Introduction to Tunnel Construction by : David Chapman
Download or read book Introduction to Tunnel Construction written by David Chapman and published by CRC Press. This book was released on 2017-11-27 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunnelling provides a robust solution to a variety of engineering challenges. It is a complex process, which requires a firm understanding of the ground conditions as well as the importance of ground-structure interaction. This book covers the full range of areas related to tunnel construction required to embark upon a career in tunnelling. It also includes a number of case studies related to real tunnel projects, to demonstrate how the theory applies in practice. New features of this second edition include: the introduction of a case study related to Crossrail’s project in London, focussing on the Whitechapel and Liverpool Street station tunnels and including considerations of building tunnels in a congested urban area; and further information on recent developments in tunnel boring machines, including further examples of all the different types of machine as well as multi-mode machines. The coverage includes: Both hard-rock and soft-ground conditions Site investigation, parameter selection, and design considerations Methods of improving the stability of the ground and lining techniques Descriptions of the various main tunnelling techniques Health and safety considerations Monitoring of tunnels during construction Description of the latest tunnel boring machines Case studies with real examples, including Crossrail’s project in London Clear, concise, and heavily illustrated, this is a vital text for final-year undergraduate and MSc students and an invaluable starting point for young professionals and novices in tunnelling.
Book Synopsis Soft Ground Tunnel Design by : Benoit Jones
Download or read book Soft Ground Tunnel Design written by Benoit Jones and published by CRC Press. This book was released on 2021-11-16 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft Ground Tunnel Design is a textbook that teaches the principles of tunnel and underground space design in soft ground. ‘Soft ground’ refers to soil, in contrast to rock. The book focuses on stability, prediction of ground movements and structural design of the lining. It shows that the choice of excavation and support methods depends on ground stability; limitation of damage to the existing built environment; and health, safety and environmental considerations. Author Benoît Jones builds on the basic principles of soil-structure interaction, the three-dimensional effects of construction sequence and the effects of construction on other surface or subsurface structures in steps of gradually increasing complexity. The use of worked examples throughout, and example problems at the end of each chapter, gives the reader confidence to apply their knowledge. Engineers and graduate students will be able to: • Understand the complex soil-structure interaction around an advancing tunnel. • Calculate heading stability. • Understand the basis for choosing an underground construction method and/or ground improvement method. • Design tunnel linings in soft ground using a variety of methods. • Predict ground movements. • Predict the effects of construction on the built environment and assess potential damage. Benoît Jones has worked in tunnelling as a designer, contractor and academic for more than 20 years. He set up and ran the MSc Tunnelling and Underground Space course at the University of Warwick. He is now managing director of his own company, Inbye Engineering.
Book Synopsis Practical Engineering Geology by : Steve Hencher
Download or read book Practical Engineering Geology written by Steve Hencher and published by CRC Press. This book was released on 2024-04-22 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Engineering Geology provides an introduction to the way projects are managed, designed and constructed, and how the engineering geologist can contribute to cost- effective and safe project achievement. The need for a holistic view of geological materials, from soil to rock, and of geological history is emphasised. Chapters address key aspects of Geology for engineering and ground modelling Site investigation and testing of geological materials Geotechnical parameters Design of slopes, tunnels, foundations, and other engineering structures Identifying hazards Avoiding unexpected ground conditions This second edition includes a new chapter on environmental issues covering hydrogeology, considerations of climate change, earthquakes, and more. All chapters have been updated, with extensively revised figures throughout and several new case studies of unexpected ground conditions. The book will support practising engineering geologists and geotechnical engineers, as well as MSc level students of engineering geology and other geotechnical subjects.
Book Synopsis Engineering of Glacial Deposits by : Barry G. Clarke
Download or read book Engineering of Glacial Deposits written by Barry G. Clarke and published by CRC Press. This book was released on 2017-07-14 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: At some time 30% of the world’s land mass was covered by glaciers leaving substantial deposits of glacial soils under major conurbations in Europe, North and South America, New Zealand, Europe and Russia. For instance, 60% of the UK has been affected, leaving significant glacial deposits under major conurbations where two thirds of the population live. Glacial soils are composite soils with significant variations in composition and properties and are recognised as challenging soils to deal with. Understanding the environment in which they were formed and how this affects their behaviour are critical because they do not always conform to classic theories of soil mechanics. This book is aimed at designers and contractors working in the construction and extractive industries to help them mitigate construction hazards on, with or in glacial deposits. These soils increase risks to critical infrastructure which, in the UK includes the majority of the road and rail network, coastal defences such as the fastest eroding coastline in Europe and most of the water supply reservoirs. It brings together many years of experience of research into the behaviour of glacial deposits drawing upon published and unpublished case studies from industry. It draws on recent developments in understanding of the geological processes and the impact they have upon the engineering properties, construction processes and performance of geotechnical structures. Unlike other books on glaciation it brings together all the relevant disciplines in earth sciences and engineering to make it directly relevant to the construction industry.
Book Synopsis Technical Manual for Design and Construction of Road Tunnels--civil Elements by :
Download or read book Technical Manual for Design and Construction of Road Tunnels--civil Elements written by and published by AASHTO. This book was released on 2010 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The increased use of underground space for transportation systems and the increasing complexity and constraints of constructing and maintaining above ground transportation infrastructure have prompted the need to develop this technical manual. This FHWA manual is intended to be a single-source technical manual providing guidelines for planning, design, construction and rehabilitation of road tunnels, and encompasses various types of road tunnels"--P. ix.
Book Synopsis Underground Infrastructure of Urban Areas 4 by : Cezary Madryas
Download or read book Underground Infrastructure of Urban Areas 4 written by Cezary Madryas and published by CRC Press. This book was released on 2017-09-25 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground infrastructure undoubtedly constitutes one of the most important engineering equipments of urbanized areas. It includes energy distribution, communications and water, carry away sewage, transportation systems of goods and people, storage facilities of articles, liquids and gases, and commercial, recreational and research activities and other functions. Underground Infrastructure of Urban Areas 4 is dedicated to the research, design, implementation and maintenance of infrastructure systems, as well as communication tunnels and building structures (garages, tanks, etc.) in urbanized areas. The book collects contributions from several countries, presenting current scientific and technical issues associated with this area of the building industry. Both theoretical issues and cases studies on the design, execution and testing of underground infrastructures at expertise and scientific levels are included in the book. Presenting the state-of-the-art in underground infrastructure of urbanized areas, Underground Infrastructure of Urban Areas 4 aims at academics, designers and builders of structures, producers and suppliers of building materials, equipment, and underground structures, and also to those managing and maintaining these structures.
Book Synopsis Rapid Excavation and Tunneling Conference 2013 Proceedings by : Michael A. DiPonio
Download or read book Rapid Excavation and Tunneling Conference 2013 Proceedings written by Michael A. DiPonio and published by SME. This book was released on 2013 with total page 1341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Every two years, industry leaders and practitioners from around the world gather at the Rapid Excavation and Tunneling Conference (RETC), the authoritative program for the tunneling profession. This comprehensive book includes more than 100 papers from industry experts, highlighting their most recent projects and sharing real-world experiences that will keep you up to date on the latest tunneling trends and technologies.
