Download or read book Convergence Confinement Method for Tunnel Design written by Marc Panet and published by Springer Nature. This book was released on 2022-01-24 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the theoretical bases and the application tools for using the 'convergence-confinement' method which is a rational method largely used in design engineering for tunneling. Until recently, the stability conditions of underground works and the choice of support methods were essentially defined on the basis of good practice or empirical methods. The progress made, on one hand on the knowledge of the constitutive laws of soils and rocks and, on the other hand on the numerical modeling of the interaction between the ground and the structures have led to the development of robust design tools for tunnels supports. The convergence-confinement method makes it possible to simulate the excavation of a tunnel and the installation of the support using a simple plane strain model. The book presents the theoretical bases of the method and its most recent developments. Closed-form solutions for stress and displacement fields around tunnels are provided for elastic, viscoelastic and elasto-plastic behavior of the ground. More generally, the principles for applying the method in numerical models are presented.

Download or read book Design and Construction of Tunnels written by Pietro Lunardi and published by Springer Science & Business Media. This book was released on 2008-02-20 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work illustrates how the Analysis of Controlled Deformation in Rocks and Soils (ADECO-RS) is used in the design and the construction of tunnels. This is a very new and effective way of tunnel construction. The ADECO-RS approach makes a clear distinction between the design and the construction stages and allows reliable forecasts of construction times and costs to be made. It uses the advance core (the core of ground ahead of the face) as a structural tool for the long and short term stabilisation of tunnels, after its rigidity has first been regulated using conservation techniques.

Download or read book Application of Convergence Confinement Method in the Design and Construction of Large Diameter Tunnels in Soft Ground written by Yanan Li and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on a large-diameter and shallow-depth tunnel project for passenger cars and rail trains. Monitoring equipment (string gauge, ground settlement points, etc.) were installed from the outset of the project to gather pertinent data. With this large data set, used to monitor and analyze the surrounding soil and support structure of the tunnel, Convergence-Confinement Method (CCM) was systematically developed, including the Support Confinement Curve (SCC), Ground Reaction Curve (GRC), and Longitudinal Displacement Profile (LDP). First, this research initially aimed to identify the optimal approach for constructing these three CCM graphs: For SCC, the spatial distribution of axial force, bending moment, and radial displacement within the tunnel structure will be illustrated and compared with the other two models. Subsequently, essential field data will be utilized to establish the SCC. The GRC was formulated using a hardening soil model, selected after comparing indoor soil tests across various models. LDP were derived from monitoring the embankment's settlement as the tunnel was constructed. A numerical model was constructed and verified using monitoring results. This includes presenting and comparing the cross-section settlement curve with Peck's findings. Through these methods, the study sought to establish best practices for generating these key CCM graphs. The second thrust of this dissertation assembles these three curves and verification CCM from the construction process in a real large-diameter and shallow-depth tunnel project, validating the CCM equilibrium stress against monitoring data and corroborating the CCM results with data from strain gauge monitoring underscore the methodology's validity and reliability, establishing guidelines for tunnel project designs. Finally, to assess the applicability of CCM, the various findings resulting from this research are presented. This study finds that Terzaghi in-situ earth pressure is closer to CCM equilibrium earth pressure, which represents the soil stress after release. Therefore, Terzaghi loose earth pressure is deemed more suitable for application in the design in the Yellow River area. This study also extends to Wood's work to derive the compression factor when the tunnel is in the 'elliptical' mode of deformation and subsequently determined stress and displacement fields around a supported tunnel.

Download or read book Underground Excavations in Rock written by E.T. Brown and published by CRC Press. This book was released on 1980-06-30 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground Excavations in Rock deals with the geotechnical aspects of the design of underground openings for mining and civil engineering processes.

Download or read book Tunnel Engineering written by Michael Sakellariou and published by BoD – Books on Demand. This book was released on 2020-03-18 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a selection of chapters covering a wide range of tunneling engineering topics. The scope was to present reviews of established methods and new approaches in construction practice and in digital technology tools like building information modeling. The book is divided in four sections dealing with geological aspects of tunneling, analysis and design, new challenges in tunnel construction, and tunneling in the digital era. Topics from site investigation and rock mass failure mechanisms, analysis and design approaches, and innovations in tunnel construction through digital tools are covered in 10 chapters. The references provided will be useful for further reading.

Download or read book Tunnel Engineering Handbook written by Thomas R. Kuesel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tunnel Engineering Handbook, Second Edition provides, in a single convenient volume, comprehensive coverage of the state of the art in the design, construction, and rehabilitation of tunnels. It brings together essential information on all the principal classifications of tunnels, including soft ground, hard rock, immersed tube and cut-and-cover, with comparisons of their relative advantages and suitability. The broad coverage found in the Tunnel Engineering Handbook enables engineers to address such critical questions as how tunnels are planned and laid out, how the design of tunnels depends on site and ground conditions, and which types of tunnels and construction methods are best suited to different conditions. Written by the leading engineers in the fields, this second edition features major revisions from the first, including: * Complete updating of all chapters from the first edition * Seven completely new chapters covering tunnel stabilization and lining, difficult ground, deep shafts, water conveyance tunnels, small diameter tunnels, fire life safety, tunnel rehabilitation and tunnel construction contracting *New coverage of the modern philosophy and techniques of tunnel design and tunnel construction contracting The comprehensive coverage of the Tunnel Engineering Handbook makes it an essential resource for all practicing engineers engaged in the design of tunnels and underground construction. In addition, the book contains a wealth of information that government administrators and planners and transportation officials will use in the planning and management of tunnels.

Download or read book Sprayed Concrete Lined Tunnels written by Alun Thomas and published by CRC Press. This book was released on 2008-10-08 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practising engineers on site, in the design office or in client organizations will find this book an excellent introduction to the design and construction of sprayed concrete lined (SCL) tunnels. The complex behaviour of the early age behaviour of the sprayed concrete requires careful management. This book covers all aspects of SCL tunnelling – from the constituents of sprayed concrete to detailed design and management during construction. Although there is a close interdependence between all the facets of sprayed concrete, few engineers have the right breadth of experience and expertise, and this urgently needs to be transferred to the wider engineering community. Disseminating essential information for tunnelling engineers, Sprayed Concrete Lined Tunnels is key reading for all involved in or studying the process.

Download or read book Analysis and Design Methods written by Catherine Fairhurst and published by Elsevier. This book was released on 2014-06-28 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis and Design Methods

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.

Download or read book Rock Mechanics Based on an Anisotropic Jointed Rock Model AJRM written by Walter Wittke and published by John Wiley & Sons. This book was released on 2014-04-07 with total page 865 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieses Buch konzentriert sich auf die Grundlagen der Felsmechanik als Basis für den sicheren und wirtschaftlichen Entwurf und Bau von Tunneln, Dämmen und Böschungen in geklüftetem und anisotropem Fels. Es ist in vier Hauptteile gegliedert: Grundlagen und Modelle Berechnungs- und Entwurfsmethoden Erkundungen, Versuche, Messung und Beobachtung Anwendungen und Fallbeispiele. Die felsmechanischen Modelle berücksichtigen den Einfluss von Trennflächen auf das Spannungs-Dehnungs-Verhalten und die Durchlässigkeit von geklüftetem Fels. Dieses Buch ist für: Bau- und Bergbauingenieure Geologen Studenten aus den entsprechenden Bereichen

Download or read book Support of Underground Excavations in Hard Rock written by E. Hoek and published by CRC Press. This book was released on 2000-01-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The safe and economical construction of tunnels, mines, and other subterranean works depends on the correct choice of support systems to ensure that the excavations are stable. These support systems should be matched to the characterstics of the rock mass and the excavation techniques adopted. Establishing the support requirements, designing support systems and installing these correctly are essential elements in safe underground construction. This is a comprehensive and practical work which also gives access to user-friendly computer programmes which enable the investigation and design of support techniques. Details on how to obtain this software are also included in the book.

Download or read book Tunnel Design Methods written by Antonio Bobet and published by CRC Press. This book was released on 2023-09-12 with total page 893 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunnel Design Methods covers analytical, numerical, and empirical methods for the design of tunnels in soil and in rock. The material is intended for design engineers looking for detailed methods, for graduate students who are interested in tunnelling, and for researchers working on various aspects of ground-support interaction under static and seismic loading. The book is divided into seven chapters, covering fundamental concepts on ground and support behavior and on ground-excavation-support interaction and provides detailed information on analytical and numerical methods used for the design of tunnels, with applications, and on the latest developments on empirical methods. The principles and formulations included are used, throughout the book, to provide insight into the response of tunnels under both simple and complex loading conditions, thus providing the reader with fundamental understanding of tunnel behavior. Both authors have experience in tunnelling and have worked extensively in practice, designing tunnels both in the United States and abroad, and in research.

Download or read book Ground Anchors and Anchored Structures written by Petros P. Xanthakos and published by John Wiley & Sons. This book was released on 1991-09-03 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treating anchorages as a direct application of the laws of statics and the theories governing the transfer of load, this book focuses on designs that are safe and reasonably priced. It is divided into two parts. Following a general introduction in the first chapter, Part One goes on to explore anchor systems, components, installation and construction details. Presents special anchor systems such as extractable, compression-type, multibell, and regroutable anchors. Analyzes the transfer of load and its relation to failure modes and anchor load capacity; deals with design considerations; covers mechanisms and types of corrosion; and details anchor stressing, testing programs, and evaluation standards. Part Two considers uses and applications and design aspects of anchored structures; presents design examples of practical value and reasonable simplicity; and incorporates examples and case histories.

Download or read book Harmonising Rock Engineering and the Environment written by Qihu Qian and published by CRC Press. This book was released on 2011-09-14 with total page 2048 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmonising Rock Mechanics and the Environment comprises the proceedings (invited and contributed papers) of the 12th ISRM International Congress on Rock Mechanics (Beijing, China, 18-21 October 2011). The contributions cover the entire scope of rock mechanics and rock engineering, with an emphasis on the critical role of both disciplines in sustai

Download or read book Rock Engineering written by Arild Palmstrom and published by ICE Publishing. This book was released on 2014-12-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock Engineering is a valuable reference tool for geotechnical engineers, geologists, consultants, contractors, and advanced students on rock engineering and engineering geology courses.

Download or read book Engineering Classification of Rock Masses for the Design of Tunnel Support written by Nicholas Barton and published by . This book was released on 1974 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Analysis with Finite Elements written by Paolo Rugarli and published by Institution of Civil Engineers. This book was released on 2010-06-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Analysis with Finite Elements reveals the theory behind the finite element (FE) method as it relates to structural engineering and explains how to overcome commonly encountered problems and errors found in everyday structural modelling with finite element software.