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Book The Influence of Strain on the Shear Strength Parameters of a Highly Plastic Preconsolidated Homionic Clay Soil

Download or read book The Influence of Strain on the Shear Strength Parameters of a Highly Plastic Preconsolidated Homionic Clay Soil written by Garry Robin Gilchrist and published by . This book was released on 1967 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Canadian Theses

Download or read book Canadian Theses written by National Library of Canada and published by . This book was released on 1967 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Physical Components of the Shear Strength of Saturated Clays

Download or read book Physical Components of the Shear Strength of Saturated Clays written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Soil Suction on Triaxial Shear Tests of Clay

Download or read book Effects of Soil Suction on Triaxial Shear Tests of Clay written by Paul C. Knodel and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Strength of Highly Plastic Clays

Download or read book Strength of Highly Plastic Clays written by Arthur Casagrande and published by . This book was released on 1959 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stress strain Characteristics of a Saturated Clay Soil at Various Strain Rates

Download or read book Stress strain Characteristics of a Saturated Clay Soil at Various Strain Rates written by Awatif Mohammed El-Domiaty and published by . This book was released on 1968 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Modeling of Strain Rate Effects on Clay in Simple Shear

Download or read book Modeling of Strain Rate Effects on Clay in Simple Shear written by Byoung Chan Jung and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is the development of a new constitutive model to describe the behavior of cohesive soils under time dependent loading. In the work presented here, the modified SIMPLE DSS model is expanded to account for the effects of strain rate on clays in simple shear conditions. The response of clay soils is highly dependent on the rate of strain for both effective stress path and stress-strain behavior. The undrained shear strength is strongly influenced by strain rate both in monotonic and cyclic simple shear tests. Nevertheless, the few available experimental results cover a very limited range of loading conditions and rates. The existing literature established that the soil response display a unique relationship between shear strength and log scale of strain rate. To include the effects of strain rate, the modified simple effective stress model starts with two assumptions: (1) a specific shear strength corresponds to a specific strain rate in a unique relation; and (2) the effect of strain rate does not change the failure envelope. The proposed model is developed from the original SIMPLE DSS model, based on an effective stress formulation in a reduced stress space, and utilizing concepts related to the framework of bounding surface plasticity. The proposed model evaluation was carried out comparing model simulations with results of simple shear tests on Boston Blue Clay and San Francisco Young Bay Mud. The model capability is useful especially in strain rate dependent responses for both monotonic and cyclic behavior, including irregular loading and step-changed condition. It was found that undrained shear strength in simple shear is directly related to strain rate effects and the responses in cyclic test show the more rate dependent behavior than those in monotonic test. The proposed model is able to predict the increase in undrained shear strength for higher strain rate.

Book Strain Rate Effect on Clay Soil Strength

Download or read book Strain Rate Effect on Clay Soil Strength written by Raymond Nen Yong and published by . This book was released on 1964 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Influence of Strain Rate on Clay Soil Strength

Download or read book The Influence of Strain Rate on Clay Soil Strength written by Hugh Corley Leitch and published by . This book was released on 1964 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis presents the account of an investigation into the effects of the rate of strain used in testing on the measured shear strength characteristics of three types of clay soils. The investigation consisted of undrained triaxial testing of specimens of each type of clay under varying conditions of cell pressure and strain rate. [...]" --

Book Effect of Water Content and Density on the Strength and Deformation Behavior of Clay Soils

Download or read book Effect of Water Content and Density on the Strength and Deformation Behavior of Clay Soils written by John Paul Malizia and published by . This book was released on 2016 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clays are used widely in sanitary landfills, embankment dams, highway embankments, hydraulic barriers, and foundations. In most of these applications, clays are compacted at maximum dry density (MDD) and optimum water content (OWC). Density and water content have a profound effect on the strength and deformation behavior of compacted clays. However, this effect has not been quantified in detail, especially the water content at which transition from brittle to plastic behavior occurs for low, medium, and high plasticity clays. The objective of this research was to investigate the effect of varying water content and density on the strength and deformation behavior of low, medium, and high plasticity clays, and to quantify the transition water content between brittle and plastic behavior for each type of clay. Initially, six samples each of low, medium, and high plasticity clays were compacted, three on the dry side and three on the wet side of OWC, to establish their compaction curves. The compacted samples were failed axially under unconfined compression and were visually inspected to determine the water content at which transition occurred between brittle and plastic deformation. Additionally, three samples of each type of clay were compacted at different water contents and failed using the direct shear test. The stress-strain curves from both tests were used to determine the transition water content between brittle and plastic behaviors. The MDD values for low, medium, and high plasticity clays were found to be 102.5 lb/ft3 (1.64 Mg/m3), 95 lb/ft3 (1.52 Mg/m3), and 89.5 lb/ft3 (1.43 Mg/m3), with the corresponding OWC values of 18%, 25%, and 27%, respectively. The compressive strength values for the low, medium, and high plasticity clays at MDD and OWC were 54 psi (344.8 kPa), 59 psi (413.8 kPa), and 60 psi (420.7 kPa), respectively. The unconfined compressive strength first increased and then decreased with increasing water content, with the change in trend occurring within 5% of OWC for each type of clay. The high plasticity clay had the highest cohesion while the low plasticity clay had the highest friction angle. The transition between brittle and plastic behavior for the low, medium, and high plasticity clays occurred between 19-20%, 27-29%, and 30-32% water content, respectively. This study was aimed at determining the transition water content as it relates to both brittle and plastic deformation. Earthquakes can cause failure of embankment dams in the form of cracking due to displacements or differential settlements from the vibrations. To prevent such failures from occurring, a homogenous embankment dam consisting of low plasticity clay (CL) or the clay core of a zoned embankment dam, must be compacted so that the clay material behaves more like a plastic material, i.e. deforms without a well developed failure plane. This study shows that, to ensure structural integrity of embankment dams in seismically active areas, the clay should not only be compacted wet of the OWC, but also on the wet side of the transition water content marking the boundary between brittle and plastic deformations.

Book Shear Strength Correlations and Remedial Measure Guidelines for Long term Stability of Slopes Constructed of Highly Plastic Clay Soils

Download or read book Shear Strength Correlations and Remedial Measure Guidelines for Long term Stability of Slopes Constructed of Highly Plastic Clay Soils written by A. A. Saleh and published by . This book was released on 1997 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Investigation of the Structure and Shear Strength Characteristics of a Clay Soil

Download or read book Investigation of the Structure and Shear Strength Characteristics of a Clay Soil written by Roger David Goughnour and published by . This book was released on 1961 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: