Evaluation of Two Seismic Design Methods for Segmental Geosynthetic Reinforced Soil Retaining Walls PDF Download

Author: Gene Dodd
Publisher:
ISBN:
Category : Earthquake resistant design
Languages : en
Pages : 784

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Author: Jonathan T. H. Wu
Publisher: John Wiley & Sons
ISBN: 1119375843
Category : Technology & Engineering
Languages : en
Pages : 414

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Book Description
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.

Author: Donald G. Anderson
Publisher: Transportation Research Board
ISBN: 0309117658
Category : Earthquake resistant design
Languages : en
Pages : 148

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Book Description
This report explores analytical and design methods for the seismic design of retaining walls, buried structures, slopes, and embankments. The Final Report is organized into two volumes. NCHRP Report 611 is Volume 1 of this study. Volume 2, which is only available online, presents the proposed specifications, commentaries, and example problems for the retaining walls, slopes and embankments, and buried structures.

Author: Jeffrey J. Carter
Publisher:
ISBN:
Category :
Languages : en
Pages : 142

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Book Description
For the purposes of this paper, the study will be limited to developing a design method for earth retaining structures that have been reinforced with geosynthetics and are subjected to cyclic motion such as that caused by earthquakes. It will examine some case studies of the performance of geosynthetic reinforced earth retaining structures (GSRW) and review some time tested concepts dealing with both geosynthetics and seismic earth pressures. Finally, this paper will mesh the various concepts together to form a step-by-step procedure for designing one type of earth retaining structure and compare the results to an equivalent concrete cantilever retaining wall.

Author: Journal Editors
Publisher: Elsevier
ISBN: 9780080440958
Category : Biography & Autobiography
Languages : en
Pages : 344

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Book Description
"Geotechnical Compendium I" provides a collection of the best articles from the year 2000. The papers, selected by the Editors, are taken from the following journals: Computers and Geotechnics Geotextiles and Geomembranes International Journal of Rock Mechanics and Mining Sciences Journal of Terramechanics Soil Dynamics and Earthquake Engineering Tunnelling and Underground Space Technology

Author: Chandra S. Desai
Publisher: Taylor & Francis US
ISBN: 9789058091857
Category :
Languages : en
Pages : 1008

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Author: Saman Zarnani
Publisher:
ISBN:
Category :
Languages : en
Pages : 1104

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Book Description
Vertical inclusions of expanded polystyrene (EPS) placed behind rigid retaining walls were investigated as geofoam seismic buffers to reduce earthquake-induced loads. A numerical model was developed using the program FLAC and the model validated against 1-g shaking table test results of EPS geofoam seismic buffer models. Two constitutive models for the component materials were examined: elastic-perfectly plastic with Mohr-Coulomb (M-C) failure criterion and non-linear hysteresis damping model with equivalent linear method (ELM) approach. It was judged that the M-C model was sufficiently accurate for practical purposes. The mechanical property of interest to attenuate dynamic loads using a seismic buffer was the buffer stiffness defined as K = E/t (E = buffer elastic modulus, t = buffer thickness). For the range of parameters investigated in this study, K [Less - Than Or Equal To] 50 MN/m3 was observed to be the practical range for the optimal design of these systems. Parametric numerical analyses were performed to generate design charts that can be used for the preliminary design of these systems. A new high capacity shaking table facility was constructed at RMC that can be used to study the seismic performance of earth structures. Reduced-scale models of geosynthetic reinforced soil (GRS) walls were built on this shaking table and then subjected to simulated earthquake loading conditions. In some shaking table tests, combined use of EPS geofoam and horizontal geosynthetic reinforcement layers was investigated. Numerical models were developed using program FLAC together with ELM and M-C constitutive models. Physical and numerical results were compared against predicted values using analysis methods found in the journal literature and in current North American design guidelines. The comparison shows that current Mononobe-Okabe (M-O) based analysis methods could not consistently satisfactorily predict measured reinforcement connection load distributions at all elevations under both static and dynamic loading conditions. The results from GRS model wall tests with combined EPS geofoam and geosynthetic reinforcement layers show that the inclusion of a EPS geofoam layer behind the GRS wall face can reduce earth loads acting on the wall facing to values well below those recorded for conventional GRS wall model configurations.

Author: Sanjay Kumar Shukla
Publisher: Thomas Telford
ISBN: 0727731173
Category : Geosynthetics
Languages : en
Pages : 465

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Book Description
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.

Author: Hidetoshi Ochiai
Publisher:
ISBN: 9789054108344
Category : Earthwork
Languages : en
Pages : 360

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Book Description

Author: P. Guo
Publisher: Taylor & Francis
ISBN: 1351424610
Category : Technology & Engineering
Languages : en
Pages : 1046

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Book Description
Papers cover topics including: physical modelling facilities; experimental advances; seismic experimental advances; education; soil behaviour; offshore systems; cold regions; geo-environment; dynamics; earthquake effects; and strategies for disaster reduction.