Download or read book Experimental Study on the Stress strain strength Behaviour of a Completely Decomposed Granite Soil and a Geofoam written by Md Kumruzzaman and published by . This book was released on 2008 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study on Effects of Deterioration of Grains on Deformation and Strength Characteristics of Soils written by Mubashir Aziz and published by GRIN Verlag. This book was released on 2011-09-07 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2010 in the subject Engineering - Geotechnology, , course: Civil Engineering, language: English, abstract: With growing infrastructure developments in hilly areas and due to economical constraints of using locally available rockfill materials for construction of embankments, practicing engineers must be acquainted with geotechnical response of non-conventional granular soils. These materials are most likely to disintegrate with time due to physical and chemical weathering. In general, the laboratory investigations on durability characteristics of such materials are only made through simple slaking tests. However, studies examining the effects of slaking-induced disintegration of soil grains on the geotechnical engineering analysis and design parameters are rather limited. This is essentially due to the reason that the grains of standard laboratory sands are mostly durable and hence, the stress-strain response is considered to be unaffected by the presence of water. In order to explore the possible effects of deterioration of soil grains on static and dynamic properties of granular soils, a series of consolidated drained torsional shear tests on various crushed soft rocks were performed under saturated and dry conditions and compared with a well reported Toyoura silica sand consisting of durable grains. Due to the sensitivity of crushed rockfill to deteriorate upon water-submergence, test under dry conditions represented the response of a soil with intact grains, whereas a similar test under saturated condition simulated the potential reduction in strength and stiffness of the soil with time. From the grain size distributions determined after each test, a degradation index was defined to quantify the degree of disintegration of grains. Strength and deformation properties determined from monotonic as well as cyclic shear tests were then compared with this index. Possible correlations of water-induced deterioration of soil grains with consolidation behaviour, peak shear strengths, friction angles, dynamic shear stiffness, and volume-change characteristics during shearing were explored. In addition, the effects of confining stress and shear strain level on particle breakage were also investigated. It was concluded that time-dependent characterization of rockfill materials by monitoring the degree of deterioration can be helpful to avoid catastrophic geotechnical failures. Nonetheless, this study is a caution to conventional soil mechanics in which decay of grains and loss of soil strength with time are often uncared.
Download or read book Soil Stress Strain Behavior Measurement Modeling and Analysis written by Hoe I. Ling and published by Springer Science & Business Media. This book was released on 2007-11-28 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: The material in this work is focused on recent developments in research into the stress-strain behavior of geomaterials, with an emphasis on laboratory measurements, soil constitutive modeling and behavior of soil structures (such as reinforced soils, piles and slopes). The latest advancements in the field, such as the rate effect and dynamic behavior of both clay and sand, behavior of modified soils and soil mixtures, and soil liquefaction are addressed.
Download or read book Stress strain behavior of a gneiss residual soil using the cubic triaxial cell written by and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: O conhecimento do comportamento de solos residuais é de grande importância para projetos geotécnicos no Brasil e, em particular, na região do Rio de Janeiro, tendo em vista que o clima tropical e as características geológicas favorecem a ocorrência de mantos residuais de grande espessura. O presente trabalho trata do estudo do comportamento tensão-deformação de um solo residual proveniente de um perfil de alteração de rocha gnáissica do maciço da Tijuca, Rio de Janeiro. Como os solos residuais gnáissicos preservam as foliações herdadas da rocha matriz, investigou-se em particular a relevância de se considerar a ocorrência de anisotropia nas características de resistência e deformabilidade destes solos. No estudo foi utilizado o equipamento triaxial cúbico desenvolvido na PUC-Rio. Este equipamento possibilita o controle independente das três tensões principais, sendo mais adequado para a reprodução das trajetórias de tensões tridimensionais, usualmente associadas com obras geotécnicas no campo, e em particular, para estudos sobre as características de anisotropia de solos. O programa experimental constou de ensaios de compressão axial e hidrostática, sob condições drenadas de carregamento, utilizando o equipamento triaxial cúbico. Foram realizados também ensaios oedométricos convencionais, de modo a se obter as características de compressibilidade do solo. Foram moldados corpos de prova a partir de blocos indeformados, paralelos e perpendiculares à foliação observada no solo, o que possibilitou a análise dos resultados para direções distintas de carregamento. Para efeito de comparação sobre a relevância do arranjo estrutural dos grãos do solo, foram ensaiados também corpos de prova compactados dos mesmos materiais. A análise dos resultados permitiu a obtenção dos módulos de deformabilidade e dos parâmetros de resistência do solo residual. Em particular, foram verificados os efeitos da direção de carregamento dos corpos de prova, do nível das tensões de confinamento, do grau de intemperismo, do arranjo estrutural dos grãos e dos efeitos do grau de saturação. Pode-se concluir que os solos estudados não apresentaram efeitos marcantes de anisotropia nas características de resistência. No entanto, quanto à deformabilidade, pode-se considerar que o solo residual jovem apresentou características anisotrópicas.
Download or read book Study of Pullout Behaviour of Soil Nails in Completely Decomposed Granite Fill written by Bandana Pradhan and published by . This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study of Volume Change and Shear Strength Behaviour of Statically Compacted Collapsible Soil written by Suhad Almahbobi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study of the Behavior of Cohesionless Soil During Stress Reversals written by Sutja Boonyachut and published by . This book was released on 1977 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress strain Behaviour of Soils Proceedingsof the Roscoe Memorial Symposium Cambridge University 29 31 March 1971 written by cambridge university Roscoe memorial symposium on stress- strain behaviour of soils and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Dynamic Stress strain and Wave propagation Characteristics of Soils written by James V. Zaccor and published by . This book was released on 1965 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes current understanding of wave propagation in a cohesionless dry granular material in response to loadings suddenly applied and held at constant magnitude. Experimental studies of propagating waves were conducted in which measurements were made of stress and displacement, as a function of time and position along a column of granular material, so that the stress-strain relationship, and wave and particle velocities could be determined. The latter quantities, thus obtained from experimental measurements, have been compared with values obtained from applicable equations of state. A number of equations of state are considered. Two equations of state appropriate to rigid-pack conditions have been discussed. They apply to very different, but regular, packings of equi-radii elastic spheres where Hertz-type contact forces prevail and rearrangement of particles under loading is not allowed. These two equations of state were derived only from material properties of the individual particles and the packing arrangement. In addition, equations of state appropriate to conditions where particle relocations occur during loading have also been developed from the measured stress-strain relationship. From the equations of state, shock, sound, and particle velocities have been obtained as derived quantities and compared with those obtained from experiment. Excellent agreement has been found between experiment and theory. (Author).
Download or read book An Experimental Study on Strength Behaviour of Jointed Rock Mass Through Modelling Under Uniaxial Compression Tests written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Stability analysis of a rock mass is an important and complicated problem related to the safety of engineering buildings. One of the major tasks of engineering geomechanics is to evaluate the rock mass stability both qualitatively and quantitatively. The ultimate strength and deformation of jointed rock mass are important parameters that designers look for in selecting sites for foundations of civil structures in rocks. In nature rock is exists as a rock mass. It is a discontinuous medium with fissures, fractures, joints, bedding planes, and faults. These discontinuities may exist with or without gouge material. The strength of rock masses depends on the behaviour of these discontinuities or planes of weakness. The frequency of joints, their orientation with respect to the engineering structures, and the roughness of the joint have a significant importance from the stability point of view. Reliable characterization of the strength and deformation behaviour of jointed rocks is very important for safe design of various types of civil structures such as arch dams, bridge piers, and tunnels.
Download or read book Experimental Study of the Behavior of Cohesionless Soil During Stress Reversals written by Sutja Boonyachut and published by . This book was released on 1977 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Modelling written by David Muir Wood and published by CRC Press. This book was released on 2017-12-21 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling forms an implicit part of all engineering design but many engineers engage in modelling without consciously considering the nature, validity and consequences of the supporting assumptions. Derived from courses given to postgraduate and final year undergraduate MEng students, this book presents some of the models that form a part of the typical undergraduate geotechnical curriculum and describes some of the aspects of soil behaviour which contribute to the challenge of geotechnical modelling. Assuming a familiarity with basic soil mechanics and traditional methods of geotechnical design, this book is a valuable tool for students of geotechnical and structural and civil engineering as well as also being useful to practising engineers involved in the specification of numerical or physical geotechnical modelling.
Download or read book Advances in Computer Methods and Geomechanics written by Amit Prashant and published by Springer Nature. This book was released on 2020-01-14 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents selected papers from IACMAG Symposium,The major themes covered in this conference are Earthquake Engineering, Ground Improvement and Constitutive Modelling. This volume will be of interest to researchers and practitioners in geotechnical and geomechanical engineering.
Download or read book Geotechnical Engineering for Transportation Projects written by American Society of Civil Engineers. Geo-Institute and published by . This book was released on 2004 with total page 1266 pages. Available in PDF, EPUB and Kindle. Book excerpt: GSP 126 contains 223 papers presented at Geo-Trans 2004, held in Los Angeles, California, July 27-31, 2004.
Download or read book Earthquake Geotechnical Engineering written by Kyriazis D. Pitilakis and published by Springer Science & Business Media. This book was released on 2007-06-14 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the full papers on which the invited lectures of the 4th International Conference on Geotechnical Earthquake Engineering (4ICEGE) were based. The conference was held in Thessaloniki, Greece, from 25 to 28 June, 2007. The papers offer a comprehensive overview of the progress achieved in soil dynamics and geotechnical earthquake engineering, examine ongoing and unresolved issues, and discuss ideas for the future.
Download or read book Recent Developments in Sustainable Infrastructure written by Bibhuti Bhusan Das and published by Springer Nature. This book was released on 2020-07-03 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select peer-reviewed proceedings of the International Conference on Recent Developments in Sustainable Infrastructure (ICRDSI) 2019. The topics span over all major disciplines of civil engineering with regard to sustainable development of infrastructure and innovation in construction materials, especially concrete. The book covers numerical and analytical studies on various topics such as composite and sandwiched structures, green building, groundwater modeling, rainwater harvesting, soil dynamics, seismic resistance and control of structures, waste management, structural health monitoring, and geo-environmental engineering. This book will be useful for students, researchers and professionals working in sustainable technologies in civil engineering.
