Download or read book An Experimental and Numerical Investigation of Tall Mechanically Stabilized Earth Walls written by Andrew W. Strahler and published by . This book was released on 2016 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implementation and construction of Mechanically Stabilized Earth (MSE) walls has undergone substantial expansions in recent years, owing to its relatively low cost, ease of construction, and high efficiency compared to conventional retaining methods. As a result, MSE walls are being constructed to greater heights with complex features (e.g. multiple tiers, equivalent batter angles, close reinforcement spacing) even though impacts on wall response associated with these characteristics are not well understood. Available methods to predict wall responses are limited to empirical databases of single tiered walls less than 20 m and designers are left to complex finite element modelling to estimate the behavior of tall walls (walls with heights greater than 20 m). The current study aims to provide practitioners with a better understanding of the working stress behavior of tall MSE walls during and after construction through the use of a calibrated numerical model that incorporates pressure dependent soil, panel-soil interaction, non-linear soil reinforcement interaction, facing rigidity, foundation stiffness, and compaction stresses. First, an extensive laboratory investigation is conducted to characterize the plane strain and three dimensional stress-strain and stress-dilatancy response of a well-graded gravelly soil. Laboratory pullout tests are performed to characterize the influence of reinforcement spacing on load-displacement response. Results from the high quality laboratory investigations are used to calibrate specific numerical elements in FLAC (e.g. reinforcement-soil interface, facing-soil interface, soil constitutive response) incorporating pressure dependent constitutive responses. A numerical model representing a 46 m tall MSE wall is developed in FLAC, incorporating calibrated element parameters. Measurements made during the construction of a 46 m tall MSE wall are used to establish those factors within the model that most accurately simulate the observed wall performance. Results from a geometric parametric study conducted to assess the influence of boundary conditions on wall response are presented, focusing on impacts associated with tier height, tier offset, and wall height. The synthesis of the results from the geometric parametric study are used to establish a more thorough understanding of wall response, with specific emphasis on wall displacements and reinforcement strains.
Download or read book Analytical and Numerical Investigation of a Mechanically Stabilized Earth Wall on I 15 written by Aaron Scott Budge and published by . This book was released on 2004 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of Mechanically Stabilized Earth Walls for Parametric Evaluation of Behavior Under Surcharge Loading written by Spencer J. Ambauen and published by . This book was released on 2014 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical model, simulating the complex behavior of reinforced soil walls using the finite element method, was developed to evaluate the behavior of a surcharged, geosynthetic-reinforced retaining wall with modular block facing. A nonlinear elastic-plastic constitutive soil material model was calibrated to experimental plane strain test data, while the performance of the wall model was validated against full-scale laboratory testing of an identical geosynthetic-reinforced wall. The results from both the constitutive model and the wall model were also compared to predictions made in the literature. It was found that the behavior of the reinforced soil wall was adequately represented by the numerical model at the end of construction and throughout the surcharge loading sequence. Furthermore, evaluation of the parametric analysis demonstrated the inter-dependencies and combined influence of various design parameters. Impacts of reinforcement spacing versus stiffness were investigated, along with stress distributions and load shedding relative to footing placement. Lateral earth pressures at the facing were compared to predictions from conventional design methods and measured loads in the reinforcement. The finite element model was also assessed of its ability to predict ultimate limit state conditions in reinforced soil walls.
Download or read book Long term Behavior of Geosynthetic Reinforced Mechanically Stabilized Earth MSE Wall System written by and published by . This book was released on 2003 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geosynthetic Reinforced Soil GRS Walls written by Jonathan T. H. Wu and published by John Wiley & Sons. This book was released on 2019-07-10 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to provide a detailed overview of Geosynthetic Reinforced Soil Walls Geosynthetic Reinforced Soil (GRS) Walls deploy horizontal layers of closely spaced tensile inclusion in the fill material to achieve stability of a soil mass. GRS walls are more adaptable to different environmental conditions, more economical, and offer high performance in a wide range of transportation infrastructure applications. This book addresses both GRS and GMSE, with a much stronger emphasis on the former. For completeness, it begins with a review of shear strength of soils and classical earth pressure theories. It then goes on to examine the use of geosynthetics as reinforcement, and followed by the load-deformation behavior of GRS mass as a soil-geosynthetic composite, reinforcing mechanisms of GRS, and GRS walls with different types of facing. Finally, the book finishes by covering design concepts with design examples for different loading and geometric conditions, and the construction of GRS walls, including typical construction procedures and general construction guidelines. The number of GRS walls and abutments built to date is relatively low due to lack of understanding of GRS. While failure rate of GMSE has been estimated to be around 5%, failure of GRS has been found to be practically nil, with studies suggesting many advantages, including a smaller susceptibility to long-term creep and stronger resistance to seismic loads when well-compacted granular fill is employed. Geosynthetic Reinforced Soil (GRS) Walls will serve as an excellent guide or reference for wall projects such as transportation infrastructure—including roadways, bridges, retaining walls, and earth slopes—that are in dire need of repair and replacement in the U.S. and abroad. Covers both GRS and GMSE (MSE with geosynthetics as reinforcement); with much greater emphasis on GRS walls Showcases reinforcing mechanisms, engineering behavior, and design concepts of GRS and includes many step-by-step design examples Features information on typical construction procedures and general construction guidelines Includes hundreds of line drawings and photos Geosynthetic Reinforced Soil (GRS) Walls is an important book for practicing geotechnical engineers and structural engineers, as well as for advanced students of civil, structural, and geotechnical engineering.
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 Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions written by Francesco Silvestri and published by CRC Press. This book was released on 2019-07-19 with total page 8083 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions contains invited, keynote and theme lectures and regular papers presented at the 7th International Conference on Earthquake Geotechnical Engineering (Rome, Italy, 17-20 June 2019. The contributions deal with recent developments and advancements as well as case histories, field monitoring, experimental characterization, physical and analytical modelling, and applications related to the variety of environmental phenomena induced by earthquakes in soils and their effects on engineered systems interacting with them. The book is divided in the sections below: Invited papers Keynote papers Theme lectures Special Session on Large Scale Testing Special Session on Liquefact Projects Special Session on Lessons learned from recent earthquakes Special Session on the Central Italy earthquake Regular papers Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions provides a significant up-to-date collection of recent experiences and developments, and aims at engineers, geologists and seismologists, consultants, public and private contractors, local national and international authorities, and to all those involved in research and practice related to Earthquake Geotechnical Engineering.
Download or read book Geosynthetics and Their Applications written by Sanjay Kumar Shukla and published by Thomas Telford. This book was released on 2002 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents topics that are based on field application areas for geosynthetics in civil engineering. This book also includes case histories and practical aspects of the application of geosynthetics, along with developments and references. It is useful for students and engineers in search of approaches to solutions for civil engineering problems.
Download or read book Ground Improvement and Reinforced Soil Structures written by C. N. V. Satyanarayana Reddy and published by Springer Nature. This book was released on 2021-07-27 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the select proceedings of the Indian Geotechnical Conference (IGC) 2020. The contents focus on recent developments in geotechnical engineering for sustainable tomorrow. The volume covers the topics related advances in ground improvement of weak foundation soils for various civil engineering projects and design/construction of reinforced soil structures with different fill materials using synthetic and natural reinforcements in different forms.
Download or read book Geo frontiers 2011 written by and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotechnical Engineering written by V.N.S. Murthy and published by CRC Press. This book was released on 2002-10-25 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: A must have reference for any engineer involved with foundations, piers, and retaining walls, this remarkably comprehensive volume illustrates soil characteristic concepts with examples that detail a wealth of practical considerations, It covers the latest developments in the design of drilled pier foundations and mechanically stabilized earth retaining wall and explores a pioneering approach for predicting the nonlinear behavior of laterally loaded long vertical and batter piles. As complete and authoritative as any volume on the subject, it discusses soil formation, index properties, and classification; soil permeability, seepage, and the effect of water on stress conditions; stresses due to surface loads; soil compressibility and consolidation; and shear strength characteristics of soils. While this book is a valuable teaching text for advanced students, it is one that the practicing engineer will continually be taking off the shelf long after school lets out. Just the quick reference it affords to a huge range of tests and the appendices filled with essential data, makes it an essential addition to an civil engineering library.
Download or read book Linear and Non linear Numerical Analysis of Foundations written by John W. Bull and published by CRC Press. This book was released on 2009-02-02 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Correctly understanding, designing and analyzing the foundations that support structures is fundamental to their safety. This book by a range of academic, design and contracting world experts provides a review of the state-of-the-art techniques for modelling foundations using both linear and non linear numerical analysis. It applies to a range of infrastructure, civil engineering and structural engineering projects and allows designers, engineers, architects, researchers and clients to understand some of the advanced numerical techniques used in the analysis and design of foundations. Topics include: Ground vibrations caused by trains Pile-group effects Bearing capacity of shallow foundations under static and seismic conditions Bucket foundation technology for offshore oilfields Seismically induced liquefaction in earth embankment foundations and in pile foundations Free vibrations of industrial chimneys and TV towers with flexibility of the soil Settlements of high rise structures Seepage, stress fields and dynamic responses in dams Site investigation
Download or read book Research and Applications in Structural Engineering Mechanics and Computation written by Alphose Zingoni and published by CRC Press. This book was released on 2013-08-15 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research and Applications in Structural Engineering, Mechanics and Computation contains the Proceedings of the Fifth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013, Cape Town, South Africa, 2-4 September 2013). Over 420 papers are featured. Many topics are covered, but the contributions may be seen to fall
Download or read book Numerical Algorithms written by Justin Solomon and published by CRC Press. This book was released on 2015-06-24 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Algorithms: Methods for Computer Vision, Machine Learning, and Graphics presents a new approach to numerical analysis for modern computer scientists. Using examples from a broad base of computational tasks, including data processing, computational photography, and animation, the textbook introduces numerical modeling and algorithmic desig
Download or read book From Research to Practice in Geotechnical Engineering written by James E. Laier and published by ASCE Publications. This book was released on 2008 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Research to Practice in Geotechnical Engineering, GSP 180, honors Dr. John H. Schmertmann, Professor Emeritus and P.E., for his contributions to civil engineering. It begins with his biography, a list of his students and writings, followed by reprints of his selection of 16 representative papers from his career. Twenty-eight new, mostly invited papers follow on a great variety of subjects, including: the installation and testing of piles; pile-structure interaction; liquefaction and its mitigation; case histories of settlement and landslide mitigation and capping a superfund landfill; and computer modeling. The authors include six members of the National Academy of Engineering. This GSP concludes with a paper by one of these, Dr. Schmertmann, which itself concludes with a suggestion for improving your technical writing. Everyone working in the geotechnical profession will find something interesting and useful herein.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Deep Mixing Method written by Masaki Kitazume and published by CRC Press. This book was released on 2013-02-21 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Deep Mixing Method (DMM), a deep in-situ soil stabilization technique using cement and/or lime as a stabilizing agent, was developed in Japan and in the Nordic countries independently in the 1970s. Numerous research efforts have been made in these areas investigating properties of treated soil, behavior of DMM improved ground under static and d
