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Simple Shear Behavior Of Fine Grained Soils Subjected To Earthquake And Other Repeated Loading
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Book Synopsis Simple Shear Behavior of Fine Grained Soils Subjected to Earthquake and Other Repeated Loading by : Thomas F. Zimmie
Download or read book Simple Shear Behavior of Fine Grained Soils Subjected to Earthquake and Other Repeated Loading written by Thomas F. Zimmie and published by . This book was released on 1979 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Simple Shear Behavior of Fine Grained Soils Subjected to Repeated Loads. Interim Report by : Carsten H. L. Floess
Download or read book Direct Simple Shear Behavior of Fine Grained Soils Subjected to Repeated Loads. Interim Report written by Carsten H. L. Floess and published by . This book was released on 1979 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Simple Shear Behavior of Fine Grained Soils Subjected to Repeated Loads by : Carsten H. Floess
Download or read book Direct Simple Shear Behavior of Fine Grained Soils Subjected to Repeated Loads written by Carsten H. Floess and published by . This book was released on 1979 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Behavior Under Earthquake Loading Conditions by : Shannon & Wilson
Download or read book Soil Behavior Under Earthquake Loading Conditions written by Shannon & Wilson and published by . This book was released on 1972 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Simple Shear Behavior Fo Five Grained Soils Subjected to Repeated Loads by : Carsten H. L. Floess
Download or read book Direct Simple Shear Behavior Fo Five Grained Soils Subjected to Repeated Loads written by Carsten H. L. Floess and published by . This book was released on 1979 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strain and Pore Pressure Behavior of Fine Grained Soils Subjected to Cyclic Shear Loading by : Rune Dyvik
Download or read book Strain and Pore Pressure Behavior of Fine Grained Soils Subjected to Cyclic Shear Loading written by Rune Dyvik and published by . This book was released on 1981 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Behavior of Sands Under Seismic Loading Conditions by : Marshall L. Silver
Download or read book The Behavior of Sands Under Seismic Loading Conditions written by Marshall L. Silver and published by . This book was released on 1969 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume change characteristics and the dynamic stress-strain properties of dry sand subjected to cyclic shear strains have been investigated and used to check the applicability of a simple method for predicting the vertical settlements due to compaction in layers of dry cohesionless soils subjected to seismic loading conditions. Dynamic testing of a medium quartz sand, performed by repeated load simple shear equipment, indicated that the shear modulus increased slightly with increasing numbers of cycles and with increasing relative density and decreases significantly with increasing values of shear strain amplitude. Modulus values determined near the upper limit of shear strain amplitude that might be expected to be induced by seismic shaking (0.1 percent) were as much as 40 percent lower than modulus values obtained at the lowest values of shear strain that were investigated (0.01 percent). (Author).
Author :National Research Council (U.S.). Committee on Earthquake Engineering Publisher :National Academies ISBN 13 : Total Pages :260 pages Book Rating :4.:/5 (31 download)
Book Synopsis Liquefaction of Soils During Earthquakes by : National Research Council (U.S.). Committee on Earthquake Engineering
Download or read book Liquefaction of Soils During Earthquakes written by National Research Council (U.S.). Committee on Earthquake Engineering and published by National Academies. This book was released on 1985 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Subcommittee 9 on Dynamic Properties of Soils Publisher :Philadelphia : The Society ISBN 13 : Total Pages :276 pages Book Rating :4.3/5 (91 download)
Book Synopsis Vibration Effects of Earthquakes on Soils and Foundations by : ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Subcommittee 9 on Dynamic Properties of Soils
Download or read book Vibration Effects of Earthquakes on Soils and Foundations written by ASTM Committee D-18 on Soil and Rock for Engineering Purposes. Subcommittee 9 on Dynamic Properties of Soils and published by Philadelphia : The Society. This book was released on 1969 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquefaction Behavior of Saturated Cohesionless Soils Subjected to Uni-directional and Bi-directional Static and Cyclic Simple Shear Stresses by : Ross William Boulanger
Download or read book Liquefaction Behavior of Saturated Cohesionless Soils Subjected to Uni-directional and Bi-directional Static and Cyclic Simple Shear Stresses written by Ross William Boulanger and published by . This book was released on 1990 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Methodologies for Assessing Seismically Induced Settlements in Soil by : Richard Ledbetter
Download or read book Current Methodologies for Assessing Seismically Induced Settlements in Soil written by Richard Ledbetter and published by . This book was released on 1983 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Stanford University. Department of Civil Engineering. Blume Earthquake Engineering Center Publisher : ISBN 13 : Total Pages :224 pages Book Rating :4.F/5 ( download)
Book Synopsis Behavior of Weakly Cemented Soil Slopes Under Static and Seismic Loading Conditions by : Stanford University. Department of Civil Engineering. Blume Earthquake Engineering Center
Download or read book Behavior of Weakly Cemented Soil Slopes Under Static and Seismic Loading Conditions written by Stanford University. Department of Civil Engineering. Blume Earthquake Engineering Center and published by . This book was released on 1980 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compressibility and Normalized Undrained Shear Behavior of Soft Coastal Fine-grained Soils by : Arash Pirouzi
Download or read book Compressibility and Normalized Undrained Shear Behavior of Soft Coastal Fine-grained Soils written by Arash Pirouzi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates empirical correlations between consolidation design parameters and index properties of soft fine-grained soils from coastal Louisiana region, normalized undrained shear behavior of high liquid limit organic fine-grained coastal soils, and consolidation behavior of fine-grained soils. The first phase of this research consisted of studying a database of site investigation data from 15 marsh creation projects across the coastal Louisiana region. The database includes a wide variety of fine-grained soils ranging from low-plasticity inorganic clays and silts to high-plasticity organic clays and silts with a large range of water content and liquid limit. Most of the empirical correlations in the literature do not cover the soils in this data set. Correlations between consolidation parameters (compressibility, preconsolidation stress, and coefficient of consolidation) determined from 1-D incremental loading consolidation tests and index properties (water content, void ratio, Atterberg Limits, and dry unit weight) were developed. The degree of correlation between the index parameters and different consolidation design parameters varied significantly. In many cases, considering inorganic and organic soil separately improved the correlations. The second phase of this research investigated the undrained shear behavior of high liquid limit, organic soils from coastal Louisiana region over the consolidation effective stress range of 50 to 1600 kPa. Undrained direct simple shear (DSS) behavior of 6 resedimented natural organic soils with liquid limit ranging from 81 to 215% and two natural inorganic soils with liquid limit equal to 45% and 46% was studied. CK0 UDSS tests were performed on normally consolidated samples. Normalized undrained shear strength and normalized undrained Young's modulus decreased with increasing consolidation stress level. The organic soils had significantly higher normalized undrained shear strengths than the inorganic soils especially at lower stresses with the difference became smaller at higher stresses. The rate of decrease in normalized undrained shear strength was found to correlate well with liquid limit or organic matter and new correlations were developed to relate undrained shear strength and consolidation stress level as a function of liquid limit. Such correlations were not observed for normalized undrained modulus and liquid limit or organic matter. Thus, a collection of plots of undrained modulus normalized by undrained shear strength versus applied stress ratio for the organic soils tested are provided. The third phase of this research involved a suite of CRS consolidation tests to investigate different methods of determining the recompression ratio (RR). Tests were performed on a variety of natural clays and silts from different quality samples (intact, highly disturbed, and resedimented) by conducting unload-reload loops at different stress levels and different unloading ratios. Seven different methods were used to determine recompression ratio from each loop resulting, on average, in over 240% difference in RR estimates from the different methods on a loop. The results showed that RR from all the methods increased with increasing stress level and unloading ratio with higher influence for higher OCR soils and sensitive clays. Recommendations for practice are provided for conduct of CRS tests and how to interpret the test results to best estimate RR.
Download or read book Recent Research Reports written by and published by . This book was released on 1980 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher : ISBN 13 :9780309440271 Total Pages :350 pages Book Rating :4.4/5 (42 download)
Book Synopsis State of the Art and Practice in the Assessment of Earthquake-Induced Soil Liquefaction and Its Consequences by : National Academies of Sciences, Engineering, and Medicine
Download or read book State of the Art and Practice in the Assessment of Earthquake-Induced Soil Liquefaction and Its Consequences written by National Academies of Sciences, Engineering, and Medicine and published by . This book was released on 2019-01-30 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake-induced soil liquefaction (liquefaction) is a leading cause of earthquake damage worldwide. Liquefaction is often described in the literature as the phenomena of seismic generation of excess porewater pressures and consequent softening of granular soils. Many regions in the United States have been witness to liquefaction and its consequences, not just those in the west that people associate with earthquake hazards. Past damage and destruction caused by liquefaction underline the importance of accurate assessments of where liquefaction is likely and of what the consequences of liquefaction may be. Such assessments are needed to protect life and safety and to mitigate economic, environmental, and societal impacts of liquefaction in a cost-effective manner. Assessment methods exist, but methods to assess the potential for liquefaction triggering are more mature than are those to predict liquefaction consequences, and the earthquake engineering community wrestles with the differences among the various assessment methods for both liquefaction triggering and consequences. State of the Art and Practice in the Assessment of Earthquake-Induced Soil Liquefaction and Its Consequences evaluates these various methods, focusing on those developed within the past 20 years, and recommends strategies to minimize uncertainties in the short term and to develop improved methods to assess liquefaction and its consequences in the long term. This report represents a first attempt within the geotechnical earthquake engineering community to consider, in such a manner, the various methods to assess liquefaction consequences.
Book Synopsis Summaries of Projects Completed by : National Science Foundation (U.S.)
Download or read book Summaries of Projects Completed written by National Science Foundation (U.S.) and published by . This book was released on with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Examination of Granular Material Behavior in a Laminar-type Direct Simple Shear Device Using Laboratory Validated Discrete Element Method Simulations by : Michelle Lee Bernhardt
Download or read book Examination of Granular Material Behavior in a Laminar-type Direct Simple Shear Device Using Laboratory Validated Discrete Element Method Simulations written by Michelle Lee Bernhardt and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Simple shear testing is used to study a number of practical geotechnical problems including: soil conditions directly below a loaded surface, adjacent to a driven pile shaft, soils deposited on a slightly inclined slope, and most notably the response of soils subjected to earthquake-type loading. While each of these problems still have important questions to be answered, earthquakes and earthquake triggered geohazards are the most complex and also pose the highest risk. An important aspect of assessing the risk associated with earthquakes is the need to accurately predict soil behavior. True field loading conditions involve multidirectional shearing and the rotation of principal planes and are much more complex than the triaxial laboratory testing methods and models often used to describe them. Simple shear testing allows for the in situ conditions to be replicated; however, several limitations of the device make data interpretation difficult. The inability to apply complementary shear stresses and the inability to measure the horizontal normal stresses results in non-uniform stresses across the boundaries, as well as an undefined stress state during shearing. This, in turn, requires assumptions to be made about the failure conditions before any state parameters can be determined. Even when only monotonic testing is conducted, there are still many important questions to be answered about the actual severity of the non-uniform stresses on the boundaries, as well as the internal stresses and the microscopic response of granular soils. Discrete element method (DEM) modeling has the advantage of being able to examine particle-to-particle interactions. Once validated with the measured laboratory data, these models provide a vast quantity of information about the fundamental mechanisms underlying the observed complexity of the response of the soil mass as a whole. The goal of this research is to gain insight into the particle-to-particle interactions driving the overall response of granular samples subjected to multi-directional cyclic simple shear conditions. The main objectives of this proposed project are to (1) characterize the macroscopic response of metal ballotini representing idealized sand under simple shear loading conditions and (2) model the physical element tests using DEM simulations to gain insight into the microscopic response of the gran℗Ưular material. Findings from this study showed that the DEM simulations could be successfully validated by laboratory data and that the overall trends observed agreed reasonably well with the experimental data from this study, as well as previous studies by other researchers. Analyses showed that density not only influences shear strength of a sample, it also affects the angle of shearing resistance, the magnitude of principal stress rotation, the angle of non-co axiality, and the orientation of the principal fabrics for strains below those needed to reach critical state. Vertical effective stress was instead shown to have very little influence on these parameters. The initial fabric appears to play the largest role in the behavior of samples tested at different vertical stresses. The simulations also showed the non-coaxial behavior of the granular samples in terms of principal stress and strain rate orientations, as well as particle displacements. A number of other sensitivity studies were conducted to examine the influence of the model simplifications on the observed response. Several of these simplifications were shown to affect the shear strength obtained and should be included in future analyses. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151646
