Download or read book Numerical Simulation in Tunnelling written by Gernot Beer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the results of the joint research initiative "Numercial Simulation in Tunneling". In doing so it provides a thorough guide to improving the safety and economy of tunnels by discussing the application of numerical simulation methods to assist tunnel engineers. Numerical simulation tools for the estimation of the required tunnel support and the required construction measures are described in this book. By using them, it is possible to study the impact on the construction and on the environment at the planning stadium and during construction. This will result in an improvement of the safety and economy of tunnels.
Download or read book Application of numerical simulation in the tunnel sealing experiment written by R. Guo and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Numerical Models in Geomechanics written by G.N. Pande and published by CRC Press. This book was released on 2020-12-17 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume a number of developments on a variety of topics have been reported. These topics include: partially saturated soil; instabilities in soil behaviour; environmental geomechanics; parallel computing; and applications to tunnels, embankments, slopes, foundations and anchors.
Download or read book Modeling Numerical Simulation and Experimental Study of a Wireless Link in a Tunnel written by Yun Bo Huang and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Methods and Constitutive Modelling in Geomechanics written by Chandrakant S. Desai and published by Springer. This book was released on 2014-05-04 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solution of stress analysis problems through numerical, computer oriented techniques is becoming more and more popular in soil and rock engineering. This is due to the ability of these methods to handle geometrically complex problems even in the presence of highly nonlinear material behaviour, characterizing the majority of soils and rocks, and of media consisting of two or more phases, like saturated and partially saturated soils. Aim of this book is to present to researchers and engineers working in the various branches of geomechanics an updated state of the research on the development and application of numerical methods in geotechnical and foundation engineering. Particular attention is devoted to the formulation of nonlinear material models and to their use for the analysis of complex engineering problems. In addition to the constitutive modelling, other topics discussed concern the use of the finite element and boundary element methods in geomechanics; the dynamic analysis of inelastic and saturated soils; the solution of seepage, consolidation and coupled problems; the analysis of soil-structure interaction problems; the numerical procedures for the interpretation of field measurements; the analysis of tunnels and underground openings.
Download or read book Innovative Numerical Modelling in Geomechanics written by Luis Ribeiro e Sousa and published by CRC Press. This book was released on 2012-05-03 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1990s five books onApplications of Computational Mechanics in Geotechnical Engineering have been published. Innovative Numerical Modelling in Geomechanics is the 6th and final book in this series, and contains papers written by leading experts on computational mechanics. The book treats highly relevant topics in the field of geotechnic
Download or read book APAC 2019 written by Nguyen Trung Viet and published by Springer Nature. This book was released on 2019-09-25 with total page 1483 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected articles from the International Conference on Asian and Pacific Coasts (APAC 2019), an event intended to promote academic and technical exchange on coastal related studies, including coastal engineering and coastal environmental problems, among Asian and Pacific countries/regions. APAC is jointly supported by the Chinese Ocean Engineering Society (COES), the Coastal Engineering Committee of the Japan Society of Civil Engineers (JSCE), and the Korean Society of Coastal and Ocean Engineers (KSCOE). APAC is jointly supported by the Chinese Ocean Engineering Society (COES), the Coastal Engineering Committee of the Japan Society of Civil Engineers (JSCE), and the Korean Society of Coastal and Ocean Engineers (KSCOE).
Download or read book Soil Dynamics and Earthquake Geotechnical Engineering written by Boominathan Adimoolam and published by Springer. This book was released on 2018-06-09 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected proceedings of the annual conference of the Indian Geotechnical Society, and covers various aspects of soil dynamics and earthquake geotechnical engineering. The book includes a wide range of studies on seismic response of dams, foundation-soil systems, natural and man-made slopes, reinforced-earth walls, base isolation systems and so on, especially focusing on the soil dynamics and case studies from the Indian subcontinent. The book also includes chapters addressing related issues such as landslide risk assessments, liquefaction mitigation, dynamic analysis of mechanized tunneling, and advanced seismic soil-structure-interaction analysis. Given its breadth of coverage, the book offers a useful guide for researchers and practicing civil engineers alike.
Download or read book Tunelling sic and Tunnel Mechanics written by Dimitrios Kolymbas and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FLAC and Numerical Modeling in Geomechanics 2001 written by D. Billaux and published by CRC Press. This book was released on 2020-12-17 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of 54 papers selected for presentation at the 2nd FLAC Symposium. The contributions cover a wide range of topics from engineering applications to theoretical developments in the areas of embankment and slope stability, mining, tunnelling, and soil and structure interaction.
Download or read book Geotechnical Research for Land Protection and Development written by Francesco Calvetti and published by Springer. This book was released on 2019-06-22 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gathers the latest advances, innovations, and applications in the field of geotechnical engineering, as presented by leading researchers and engineers at the 7th Italian National Congress of Geotechnical Researchers (CNRIG 2019), entitled “Geotechnical Research for the Protection and Development of the Territory” (Lecco, Italy, July 3-5, 2019). The congress is intended to promote exchanges on the role of geotechnical research and its findings regarding the protection against natural hazards, design criteria for structures and infrastructures, and the definition of sustainable development strategies. The contributions cover a diverse range of topics, including infrastructural challenges, underground space utilization, and sustainable construction in problematic soils and situations, as well as geo-environmental aspects such as landfills, environmental and energy geotechnics, geotechnical monitoring, and risk assessment and mitigation. Selected by means of a rigorous peer-review process, they will spur novel research directions and foster future multidisciplinary collaborations.
Download or read book Numerical Modelling of Construction Processes in Geotechnical Engineering for Urban Environment written by Theodoros Triantafyllidis and published by CRC Press. This book was released on 2006-02-23 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become increasingly important, particularly in an urban environment, to predict soil behaviour and to confine the settlement or deformation of buildings adjacent to construction sites. One important factor is the choice of construction procedure for the installation of piles, sheet pile walls, anchors or for soil improvement techniques, ground freezing and tunnelling methods. The modelling of construction processes, which are frequently associated with large deformations of the soil and with strong changes in the structure of the soil around the construction plant, in the case of, for example, a drill, a bit, a vibrator, or an excavation tool, requires sophisticated and new methods in numerical modelling. Often the simulation of the construction procedure is neglected in the calculations. Such methods are described and discussed in this book, as are examples of the methods applied to geotechnical practice, field and laboratory testing as well as case studies. This volume provides a valuable source of reference for scientists in geotechnical engineering and numerical modelling, geotechnical engineers, post graduate students, construction companies and consultants, manufacturers of geotechnical construction plants and software suppliers and developers of geotechnical construction methods.
Download or read book Advances and applications of artificial intelligence and numerical simulation in risk emergency management and treatment written by Yunhui Zhang and published by Frontiers Media SA. This book was released on 2023-07-24 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotechnical Characterization and Modelling written by Madhavi Latha Gali and published by Springer Nature. This book was released on 2020-09-18 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises select papers presented during the Indian Geotechnical Conference 2018, discussing issues and challenges relating to the characterization of geomaterials, modelling approaches, and geotechnical engineering education. With a combination of field studies, laboratory experiments and modelling approaches, the chapters in this volume address some of the most widely investigated geotechnical engineering topics. This volume will be of interest to researchers and practitioners alike.
Download or read book FLAC and Numerical Modeling in Geomechanics written by Christine Detournay and published by CRC Press. This book was released on 2020-12-17 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixty-five papers cover a wide range of topics from engineering applications to theoretical developments in the areas of embankment and slope stability, underground cavity design and mining; dynamic analysis, soil and structure interaction, and coupled processes and fluid flow.
Download or read book Centrifuge Modeling of the BART Transbay Tube and Numerical Simulation of Tunnels in Liquefying Ground written by Jui-Ching Chou and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes centrifuge model tests and numerical analyses of tunnels in liquefiable soil. The prototype of the centrifuge tests was the Bay Area Rapid Transit (BART) Transbay Tube (TBT) that connects Oakland to San Francisco, CA, USA. During the tunnel construction, much of the gravelly backfill material around this tunnel was placed loosely under water at a relative density less than 50%. Because of the low relative density of the backfill material around the tube and low unit weight of the tube, there were concerns that tube might suffer large deformation due to buoyancy forces if the backfill material liquefied in an earthquake. BART engaged Fugro West Inc., Oakland, CA to assess the need for ground improvement to mitigate seismically-induced deformations of the tunnel, in particular, the deformations due to uplift of the tunnel in the liquefied backfill. Fugro recommended that their numerical analyses and deformation mechanisms should be further verified using centrifuge model tests. Centrifuge model tests were performed (1) to assess the stability of the BART Transbay Tube, (2) to confirm the uplift mechanisms of the BART Transbay Tube and (3) to verify numerical methods. Test results indicated that the anticipated uplift during the design earthquake would be acceptable (less than about 0.25 m). Three uplift mechanisms were observed in the centrifuge model tests: (1) a cyclic ratcheting mechanism of sand moving under the tunnel associated with cyclic lateral deformations of the tunnel, (2) seepage of water under the tunnel, and (3) heave of soft clay around the trench. Flow of the sand as a viscous liquid was not observed. Two approaches were used to record subsurface movements in the centrifuge experiments. The traditional approach used data from accelerometers and displacement transducers to determine the trajectory of the tunnel. A new approach, Electric Field Displacement Sensors (EFDS), involves installation of source and ground electrodes in the specimen through which well defined multi-directional electric fields can be set up in the specimen. The movement of measurement electrode (which can be attached to an object of interest) can then be determined simply by measuring its voltage. Li (2006) was the first to use this approach, but she used an electrode switching system to sequentially excite multidirectional electric fields. A new contribution of this thesis was the idea that independent electric fields data from different sources can be excited simultaneously at different frequencies; elimination of the need for the switching system has saved a lot of complexity in the equipment and also allowed much improved temporal resolution. After comparing the processed data from the EFDS and traditional approaches, the EFDS can capture the dynamic response pretty well but the EFDS has its limitations. The change of soil resistivity and the heterogeneities of the soil resistivity affect the estimated movements greatly but the change of the soil resistivity can not be captured from the voltage data in the current implementation. With continued work on solving its limitation, the EFDS could become a fairly inexpensive tool for tracking movements. A parametric study was performed using a finite difference program, FLAC 2D, In the numerical simulation, the UBC Sand model (Beatty and Byrne 1998) was used to model the behavior of liquefiable soils. A mesh sensitivity study was performed to decide the appropriate number of nodes for the simulations and how to best model sliding at interfaces between the soil and tunnel. In the parametric study, effects of different geometry characteristics and soil properties on the seismic behavior of the tunnel were explored and the results are summarized in a few dimensionless plots. After effects of various factors on the tunnel performance were understood, suggestions for the future tunnel design were made: (1) densify the liquefiable soils to reduce the cyclic mobility associated with liquefaction, (2) minimize the volume of the liquefiable soils and the thickness of the liquefiable soils underneath the tunnel to reduce the volume of pore water expelled and the space through which water and soil may flow under the tunnel, (3) make the elevation of the interface between high and low permeability materials shallow enough so that high pore pressures are not trapped near the base of the tunnel, (4) make the liquefiable soils as permeable as possible to drain high pore pressures away from the base of the tunnel, and (5) make the unit weight of the tunnel as close as to the surrounding soil.
