Shield Tunneling Technology In Mixed Face Ground Conditions
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Shield Tunneling Technology In Mixed Face Ground Conditions
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Author : Weibin Zhu
language : en
Publisher: Springer Nature
Release Date : 2022-09-15
Shield Tunneling Technology In Mixed Face Ground Conditions written by Weibin Zhu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-15 with Science categories.
This book introduces shield construction risks under mixed face ground condition, analyzes the shield tunneling risks, gives definitions of relevant risks and creates the theoretical system of shield tunneling technology under mixed face ground condition, that is, geology is the foundation, TBM is the key, and people (management) is the essence. The content provides numbers of targeted solutions, such as dual-mode TBM, multi-mode TBM, millisecond delay blasting for boulders, Paste HDN, auxiliary pressure balance tunneling and so on. This book can make researchers who engaged in shield tunneling to get experiences and lessons from it, so as to make the right decision during shield type selection, standardize shield tunneling, take proper action, avoid or reduce construction risks, and minimize casualties and property losses.
Shield Construction Techniques In Tunneling
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Author : Kui Chen
language : en
Publisher: Woodhead Publishing
Release Date : 2021-02-05
Shield Construction Techniques In Tunneling written by Kui Chen and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-05 with Architecture categories.
Shield Construction Techniques in Tunnelling presents the latest on this fast, environmentally-friendly and relatively safe construction technique, reflecting on its technical risks and challenges as seen in China. Sections introduce the type of shields, the history of the technique, shielding principles, selection, management, the latest techniques in operation, consider engineering cases, discuss construction in gravel, soft-soil, composite, and rock strata, and present video clips of construction that are accessible through QR codes embedded in the text. The book combines theory and practical experience, giving the reader unique insights into shield equipment and construction techniques. The shield tunneling technique is being used very widely, particularly in China, which is building urban-rail transit systems at an unparalleled scale and speed. The use of tunneling-shields provides a fast, relatively-safe, and ecologically-friendly method for the construction of tunnels. However, a number of incidents have shown the risks involved in tunnelling through geologically complex areas. Gives the principles and practice of shield construction techniques, including shield selection and operation Demonstrates the latest technologies in shield construction that can be applied in practice Reflects on the technical risks and challenges of shield construction, based on extensive use of the technique for tunnel construction in China Discusses challenges in construction in gravel, soft-soil, composite and rock strata Provides engineers with applicable insights into shield equipment and construction techniques
Shield Tunneling Technology In Hard Soft Uneven Stratum And Extremely Soft Stratum
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Author : Kairong Hong
language : en
Publisher: Springer Nature
Release Date : 2021-07-10
Shield Tunneling Technology In Hard Soft Uneven Stratum And Extremely Soft Stratum written by Kairong Hong and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-10 with Science categories.
This book focuses on some technical problems encountered in shield tunneling in hard–soft uneven stratum and extremely soft stratum, based on the recent shield tunneling engineering practice, and summarizes the achievements of shield tunneling in view of the technical problems from an overall and objective perspective. There are 6 chapters in this book. Chapter 1 introduces the development trend of shield tunneling method, defines classification of various stratum where shield tunneling applies, and mainly analyses the selection of shield machines and the configuration of cutters. Chapters 2 to 5 elaborates the strata characteristics and construction difficulties under various stratum conditions, puts forward adaptive selection and design keys of shield in various stratum, and emphatically analyses and summarizes the stability control technologies of shield tunnel face and driving control technology by case studies. Chapter 6 introduces the shield chamber opening technologies under hyperbaric condition, emphatically presents the basic requirements and operational preparations for the shield chamber opening, and puts forward innovative ideas of operation procedures, control points of key procedures, and safety requirements of shield chamber opening under hyperbaric condition.
Mechanised Shield Tunnelling
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Author : Bernhard Maidl
language : en
Publisher: John Wiley & Sons
Release Date : 1996-12-16
Mechanised Shield Tunnelling written by Bernhard Maidl and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-12-16 with Technology & Engineering categories.
Since its early beginnings in 1806, this type of tunnelling has become one of the most important techniques. While Japan's current pioneering role cannot be denied, the state of development in Europe has reached a high level of international recognition. This book explains the history of this construction method, outlining basic information and presenting the various types of shields and linings with the corresponding equipment and range of applications. It examines various projects, including not only such large ones as the Channel or the Belt tunnel, but also small, equally interesting projects such as underground railways. The problems involved as well the technology used to confront them are fully described, and the text is structured in such a way that readers are led from the basics of this construction method, via the essential functional elements of the shield machines and on to the different types of shields. The universality of the book is guaranteed by the three expert authors, a researcher, machine manufacturer and contractor respectively. Invaluable for current and future tunnelling projects and a must for all those working in the field.
Tunnelling Technology
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Author : Golder Associates
language : en
Publisher:
Release Date : 1976
Tunnelling Technology written by Golder Associates and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Local transit categories.
Prediction Of Instability And Ground Movements During Tunnel Construction In Non Homogenous Conditions
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Author : Vasiliki Founta
language : en
Publisher:
Release Date : 2018
Prediction Of Instability And Ground Movements During Tunnel Construction In Non Homogenous Conditions written by Vasiliki Founta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
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.
Construction Technology Of Large Diameter Underwater Shield Tunnel
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Author : Jian Chen
language : en
Publisher: Springer Nature
Release Date : 2022-01-31
Construction Technology Of Large Diameter Underwater Shield Tunnel written by Jian Chen and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-31 with Science categories.
This book systematically introduces the new technology used in the construction of underwater large slurry shields under complex conditions. The basic principles, scope of application, construction technology and technical points of the key technologies such as the origin and arrival of the shield, crossing the shallow soil in the middle of the river, crossing the guard, and changing the knife and opening the knife are clarified.
Mechanised Shield Tunnelling
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Author : Bernhard Maidl
language : en
Publisher: John Wiley & Sons
Release Date : 2013-05-20
Mechanised Shield Tunnelling written by Bernhard Maidl and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-20 with Technology & Engineering categories.
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.
Expanding Underground Knowledge And Passion To Make A Positive Impact On The World
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Author : Georgios Anagnostou
language : en
Publisher: CRC Press
Release Date : 2023-04-12
Expanding Underground Knowledge And Passion To Make A Positive Impact On The World written by Georgios Anagnostou and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-12 with Technology & Engineering categories.
Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World contains the contributions presented at the ITA-AITES World Tunnel Congress 2023 (Athens, Greece, 12 – 18 May, 2023). Tunnels and underground space are a predominant engineering practice that can provide sustainable, cost-efficient and environmentally friendly solutions to the ever-growing needs of modern societies. This underground expansion in more diverse and challenging infrastructure types or to novel underground uses can foster the changes needed. At the same time, the tunneling and underground space community needs to be better prepared and equipped with knowledge, tools and experience, to deal with the prevailing conditions, to successfully challenge and overcome adversities on this path. The papers in this book aim at contributing to the analysis of challenging conditions, the presentation and dissemination good practices, the introduction of new concepts, new tools and innovative elements that can help engineers and all stakeholders to reach their end goals. Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World covers a wide range of aspects and topics related to the whole chain of the construction and operation of underground structures: Knowledge and Passion to Expand Underground for Sustainability and Resilience Geological, Geotechnical Site Investigation and Ground Characterization Planning and Designing of Tunnels and Underground Structures Mechanised Tunnelling and Microtunnelling Conventional Tunnelling, Drill-and-Blast Applications Tunnelling in Challenging Conditions - Case Histories and Lessons Learned Innovation, Robotics and Automation BIM, Big Data and Machine Learning Applications in Tunnelling Safety, Risk and Operation of Underground Infrastructure, and Contractual Practices, Insurance and Project Management The book is a must-have reference for all professionals and stakeholders involved in tunneling and underground space development projects.
Geotechnical Aspects Of Underground Construction In Soft Ground
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Author : Charles W.W. Ng
language : en
Publisher: CRC Press
Release Date : 2008-12-03
Geotechnical Aspects Of Underground Construction In Soft Ground written by Charles W.W. Ng and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-03 with Technology & Engineering categories.
This volume comprises a collection of four special lectures, six general reports and 112 papers presented at the Sixth International Symposium of Geotechnical Aspects of Underground Construction in Soft Ground (IS-Shanghai) held between 10 and 12 April 2008 in Shanghai, China.The Symposium was organised by Tongji University and the following t