Download or read book Behavior of a Fine Sand in Triaxial Torsional and Rotational Shear Tests written by Yie-Ruey Chen and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study of 3D Failure Surface for Cross anisotropic Sand Deposits During Stress Rotation written by Nina Maria Rodriguez and published by . This book was released on 2012 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: A torsion shear apparatus developed at The Catholic University of America, Washington, DC was used to conduct experiments on Fine Nevada Sand in order to study the effects of cross-anisotropy, shear banding and stress rotation under three independent principal stresses on stress-strain behavior. Drained torsion shear tests were performed with constant b-values, major principal stress directions and mean confining stress. A series of 18 drained tests using a true triaxial apparatus were conducted for comparison with certain torsion shear results. Drained triaxial tests with varying mean confining stress were also performed. Additional drained conventional triaxial tests were also performed to determine parameters needed for modeling. The 3D failure surface of Fine Nevada sand is presented. Shear banding patterns and analysis is presented for the true triaxial and torsion shear tests. The failure conditions from the torsion shear results are compared to a newly developed failure criterion. The effects of the intermediate principal stress on the failure surface are analyzed. Results clearly show the effects of cross-anisotropy in Fine Nevada Sand. This is seen in variation of friction angle with differing conditions and from strain analysis in different stress paths. Non-associated flow is observed and shear band inclinations in torsion shear specimens, although scattered, follow the Coulomb equation prediction. Data from these tests provide a solid foundation for future developments of cross-anisotropic constitutive models for frictional materials.
Download or read book Geotechnical Aspects of Underground Construction in Soft Ground written by Mohammed Elshafie and published by CRC Press. This book was released on 2021-05-11 with total page 1846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geotechnical Aspects of Underground Construction in Soft Ground comprises a collection of 112 papers, four general reports on the symposium themes, the Fujita Lecture, three Special Lectures and the Bright Spark Lecture presented at the Tenth International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, held in Cambridge, United Kingdom, 27-29 June 2022. The symposium is the latest in a series which began in New Delhi in 1994, and was followed by symposia in London (1996), Tokyo (1999), Toulouse (2002), Amsterdam (2005), Shanghai (2008), Rome (2011), Seoul (2014) and Sao Paulo (2017). This was organised by the Geotechnical Research Group at the University of Cambridge, under the auspices of the Technical Committee TC204 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). Geotechnical Aspects of Underground Construction in Soft Ground includes contributions from more than 25 countries on research, design and construction of underground works in soft ground. The contributions cover: Field case studies Sensing technologies and monitoring for underground construction in soft ground Physical and numerical modelling of tunnels and deep excavations in soft ground Seismic response of underground infrastructure in soft ground Design and application of ground improvement for underground construction Ground movements, interaction with existing structures and mitigation measures The general reports give an overview of the papers submitted to the symposium, covered in four technical sessions. The proceedings include the written version of the five invited lectures covering topics ranging from developments in geotechnical aspects of underground construction, tunnelling and groundwater interaction (short and long-term effects), the influence of earth pressure balance shield tunnelling on pre-convergence and segmental liner loading (field observations, modelling and implications on design). Similar to previous editions, Geotechnical Aspects of Underground Construction in Soft Ground represents a valuable source of reference on the current practice of analysis, design, and construction of tunnels and deep excavations in soft ground. The book is particularly aimed at academics and professionals interested in geotechnical and underground engineering.
Download or read book Deformation Behavior of Fine Sand written by Han-Wei Yang and published by . This book was released on 1987 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotechnical Aspects of Underground Construction in Soft Ground 2nd Edition written by Mohammed Elshafie and published by CRC Press. This book was released on 2022-12-26 with total page 2036 pages. Available in PDF, EPUB and Kindle. Book excerpt: GEOTECHNICAL ASPECTS OF UNDERGROUND CONSTRUCTION IN SOFT GROUND comprises a collection of 112 contributions presented at the Tenth International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, held in Cambridge, United Kingdom, 27-29th June 2022. This 2nd edition also includes four general reports on the symposium themes which give an overview of the papers submitted to the symposium, covered in four technical sessions. The symposium is the latest in a series which began in New Delhi in 1994, and was followed by symposia in London (1996), Tokyo (1999), Toulouse (2002), Amsterdam (2005), Shanghai (2008), Rome (2011), Seoul (2014) and Sao Paulo (2017). This symposium was organised by the Geotechnical Research Group at the University of Cambridge, under the auspices of the Technical Committee TC204 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). Geotechnical Aspects of Underground Construction in Soft Ground includes contributions from more than 25 countries on the research, design and construction of underground works in soft ground. The contributions cover the following themes: Field case studies Sensing technologies and monitoring for underground construction in soft ground Physical and numerical modelling of tunnels and deep excavations in soft ground Seismic response of underground infrastructure in soft ground Design and application of ground improvement for underground construction Ground movements, interaction with existing structures and mitigation measures Similar to previous editions, GEOTECHNICAL ASPECTS OF UNDERGROUND CONSTRUCTION IN SOFT GROUND represents a valuable source of reference on the current practice of analysis, design, and construction of tunnels and deep excavations in soft ground. The book is particularly aimed at academics and professionals interested in geotechnical and underground engineering.
Download or read book Sustainable Construction Materials and Technologies written by Yoon-Moon Chun and published by CRC Press. This book was released on 2007-05-31 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction materials industry is a major user of the world’s resources. While enormous progress has been made towards sustainability, the scope and opportunities for improvements are significant. To further the effort for sustainable development, a conference on Sustainable Construction Materials and Technologies was held at Coventry University, Coventry, U.K., from June 11th - 13th, 2007, to highlight case studies and research on new and innovative ways of achieving sustainability of construction materials and technologies. This book presents selected, important contributions made at the conference. Over 190 papers from over 45 countries were accepted for presentation at the conference, of which approximately 100 selected papers are published in this book. The rest of the papers are published in two supplementary books. Topics covered in this book include: sustainable alternatives to natural sand, stone, and Portland cement in concrete; sustainable use of recyclable resources such as fly ash, ground municipal waste slag, pozzolan, rice-husk ash, silica fume, gypsum plasterboard (drywall), and lime in construction; sustainable mortar, concrete, bricks, blocks, and backfill; the economics and environmental impact of sustainable materials and structures; use of construction and demolition wastes, and organic materials (straw bale, hemp, etc.) in construction; sustainable use of soil, timber, and wood products; and related sustainable construction and rehabilitation technologies.
Download or read book Triaxial and Torsional Shear Test Results for Sand written by Bruce L. Kutter and published by . This book was released on 1994 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the laboratory tests conducted in triaxial and torsional apparatus. The purposes of this report are not only to support the calibration and verification of the bounding surface hypoplasticity model for granular soil but to provide a valuable data base for future research in numerical model simulation and design. Under this contract, two experiments were carried out: (1) Laboratory samples in the triaxial apparatus and hollow cylinder torsional apparatus; and (2) Centrifuge model tests including two and three-dimensional structures subjected to static and dynamic loadings. This report presents the results of triaxial tests including drained and undrained, monotonic and cyclic, and stress and strain controlled tests. The maximum stress ratio achieved in drained triaxial tests was significantly larger than that in undrained triaxial tests. Results of six hollow cylinder torsional and rotational shear tests are also presented. The results from different types are compared. Finally, the conclusions of these laboratory tests are also discussed. The test results indicate that the shape of phase transformation and failure surfaces were different when viewed in the pi-plane. It was also found that samples subject to rotational shear may be less likely to develop larger strain during undrained cycling than samples in triaxial compression/extension cyclic tests at similar stress ratios.
Download or read book Advanced Triaxial Testing of Soil and Rock written by Robert T. Donaghe and published by ASTM International. This book was released on 1988 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Although the triaxial compression test is presently the most widely used procedure for determining strength and stress-deformation properties of soils, there have been no books published on triaxial testing since the 1962 second edition of the landmark work The Measurement of Soil Properties in the Triaxial Test by Bishop and Henkel. It is apparent there is a need to document advances made in triaxial testing since publication of Bishop and Henkel's book and to examine the current state of the art in a forum devoted solely to triaxial testing. Because of increasing versatility brought about by recent developments in testing techniques and equipment, it is also important that the geotechnical profession be provided with an up-to-date awareness of potential uses for the triaxial test."--Overview.
Download or read book Dynamic Properties of Sand Under True Triaxial Stress States from Resonant column Torsional Shear Tests written by Sheng-Huoo Ni and published by . This book was released on 1987 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Triaxial Testing of Soils written by Poul V. Lade and published by John Wiley & Sons. This book was released on 2016-05-02 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Triaxial Testing of Soils explains how to carry out triaxial tests to demonstrate the effects of soil behaviour on engineering designs. An authoritative and comprehensive manual, it reflects current best practice and instrumentation.References are made throughout to easily accessible articles in the literature and the books focus is on how to obtain high quality experimental results.
Download or read book Behavior of Pile Foundations in Liquefied and Laterally Spreading Ground written by Scott J. Brandenberg and published by . This book was released on 2005 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Specimen Size Effect on Shear Behavior of Loose Sand in Triaxial Testing written by Tarek Omar and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Riaxial tests are widely used to determine the behavior and strength characteristics of soils without due attention to the differences in specimen size. Several drained and undrained monotonic triaxial compression shear tests are performed on three different specimen sizes of the same sand to investigate the influence of specimen size and scale effect on the shear behavior. The test results indicate that the behavior of loose sand is strongly influenced by the specimen size, with larger specimens exhibiting a stiffer behavior during isotropic compression, and mobilizing smaller shear strengths and effective friction angles. Triaxial testing also involves many sources of errors that could significantly affect shear strength parameters if not corrected. Extensive errors are investigated and it is found that negligence in making corrections accounting for these errors will result in an overestimation as much as 42% and 15 degrees in the critical shear strength and critical state friction angle, respectively. Furthermore, the measured critical state parameters and shear strengths are employed to compare the static and seismic slope stability of an earth embankment dam, calibrate a critical state soil constitutive model, study the soil behavior under shallow foundations, and evaluate liquefaction triggering and failure of retaining structures. The results show that all of these analyses are significantly affected by the strength parameters of the same soil determined from different specimen sizes. While using small size samples for determining shear strength parameters might result in un-conservative design, the choice of a large sample size is consequently a more accurate representation of soil strength conditions and field deformations.
Download or read book The Response of Soils to Dynamic Loadings written by Kent Allen Healy and published by . This book was released on 1963 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical and Numerical Modeling of Nonlinear Cyclic Load deformation Behavior of Shallow Foundations Supporting Rocking Shear Walls written by Sivapalan Gajan and published by . This book was released on 2006 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deformation Characteristics of Geomaterials Comportement Des Sols Et Des Roches Tendres written by H. Di Benedetto and published by CRC Press. This book was released on 2003-01-01 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main themes of this conference are experimental investigations into deformation properties - from very small strains to beyond failure, laboratory, in-situ and field observation interpretations, and behaviour characterization and modelling. Emphasis is placed on exploring recent investigations into time-related stresses, and on applying advanced geotechnical testing to real engineering problems.
Download or read book Evaluation of Liquefaction Potential of Sand by Cyclic Triaxial and Torsional Loadings written by Yu-Lin Alice Jen and published by . This book was released on 1983 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report written by and published by . This book was released on 1987 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
