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The Impact Of Sample Scale On The Compressibility Parameters Of Saturated Fine Grained Soils
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Book Synopsis The Impact of Sample Scale on the Compressibility Parameters of Saturated Fine-grained Soils by : R. L. Tepondjou Nguedia
Download or read book The Impact of Sample Scale on the Compressibility Parameters of Saturated Fine-grained Soils written by R. L. Tepondjou Nguedia and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Correlations of Soil and Rock Properties in Geotechnical Engineering by : Jay Ameratunga
Download or read book Correlations of Soil and Rock Properties in Geotechnical Engineering written by Jay Ameratunga and published by Springer. This book was released on 2015-12-11 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a one-stop reference to the empirical correlations used extensively in geotechnical engineering. Empirical correlations play a key role in geotechnical engineering designs and analysis. Laboratory and in situ testing of soils can add significant cost to a civil engineering project. By using appropriate empirical correlations, it is possible to derive many design parameters, thus limiting our reliance on these soil tests. The authors have decades of experience in geotechnical engineering, as professional engineers or researchers. The objective of this book is to present a critical evaluation of a wide range of empirical correlations reported in the literature, along with typical values of soil parameters, in the light of their experience and knowledge. This book will be a one-stop-shop for the practising professionals, geotechnical researchers and academics looking for specific correlations for estimating certain geotechnical parameters. The empirical correlations in the forms of equations and charts and typical values are collated from extensive literature review, and from the authors' database.
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.
Book Synopsis The Combined Effect of Particle Shape and Grain Size Distribution on the Critical State Parameters of Coarse-grained Soils by : Ammar Mohammed Alshammari
Download or read book The Combined Effect of Particle Shape and Grain Size Distribution on the Critical State Parameters of Coarse-grained Soils written by Ammar Mohammed Alshammari and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle shape and grain size distribution (GSD) control the mechanical response of coarse-grained soils. Based on that, several researchers have sought the link between coarse-grained soils' intrinsic properties (e.g., GSD, and particles' roughness, roundness, and aspect ratio) and the mechanical response (e.g., stiffness and strength). Unfortunately, those studies investigate the effects of particle shape descriptors and GSD on the mechanical response of coarse-grained soils separately. However, both sets of parameters are required to fully capture the mechanical behavior of the coarse-grained soils.We implemented a systematic experimental study to assess the combined effect of particle shape (i.e., roundness) and GSD on the parameters that control the critical state line in coarse-grained particles. In this regard, we evaluated the particulate material response within the critical state soil mechanics model because it is a robust framework that captures particulate materials' ultimate volumetric and shear strength response. Furthermore, the critical state soil mechanics model should be adopted while designing safe geotechnical engineering structures, as recent infrastructure failures have shown (Jefferies, 2022). We tested fifty-six mixtures made of mono-sized, bi-sizes, and poly-sized glass beads and crushed glass particles. These mixtures permit studying the combined effect of particle shape and GSD on critical state parameters. To assess the critical state friction angle, 0́Ø We deployed a rotating cylinder to capture the angle of repose of failing particulate material. 0́Ø We developed a new algorithm to systematically analyze digital images and measure particulate material's angle of repose and the void ratio at failure. The repose angle mimics the critical state friction angle of particulate materials. While for testing the critical state void ratio, 0́Ø We modified the simple method proposed by Santamarina and Cho (2001) to evaluate the critical state parameters on the void ratio-vs.-the log of the mean effective stress space. The significant advantage of our methodology is that it allows the systematic and straightforward evaluation of the effect intrinsic properties of the tested materials at low applied effective stresses to avoid particle breakage. In addition, our modifications improved the quality of the collected data. Results show that the particle shape of the small-size fractions significantly influences the critical state parameters more than the coarse-grained fractions. However, the interaction of the particle shape on different size fractions is complex. For example, the intercept of the critical state line on the compressional plane is affected by the GSD and particle shapes of both the large-size and small-size fractions. Furthermore, the results appear to be controlled by the particle shape of the large-size fractions when the small-size fractions do not fill all the void spaces left by the large-size particles. In contrast, the particle shape of the small-size fraction controls the critical state parameters when small particles fill all voids. Based on the experimental observations, interpretation, and analyses, we proposed calculating the equivalent roundness of mixtures based on the surface area. This equivalent roundness correlates well with the critical state parameters. Furthermore, the correlations provide a greater coefficient of correlations when functions include both roundness (i.e., a measure of particle shape) and coefficient of curvature (i.e., a measure of GSD). The proposed correlations allow estimating all the critical state parameters based on intrinsic properties of the coarse-grained soils' particles.
Book Synopsis Geotechnical Engineer's Portable Handbook by : Robert Day
Download or read book Geotechnical Engineer's Portable Handbook written by Robert Day and published by McGraw Hill Professional. This book was released on 1999-12-02 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-volume library of instant geotechnical and foundation data Now for the first time ever, geotechnical, foundation, and civil engineers...geologists...architects, planners, and construction managers can quickly find information they must refer to every working day, in one compact source. Edited by Robert W. Day, the time -and effort-saving Geotechnical Engineer's Portable Handbook gives you field exploration guidelines and lab procedures. You'll find soil and rock classification, basic phase relationships, and all the tables and charts you need for stress distribution, pavement, and pipeline design. You also get abundant information on all types of geotechnical analyses, including settlement, bearing capacity, expansive soil, slope stability - plus coverage of retaining walls and building foundations. Other construction-related topics covered include grading, instrumentation, excavation, underpinning, groundwater control and more.
Book Synopsis Soil Mechanics in Engineering Practice by : Karl Terzaghi
Download or read book Soil Mechanics in Engineering Practice written by Karl Terzaghi and published by Wharton Press. This book was released on 2010-11 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the definitive handbook to soil mechanics, covering in great detail such topics as: Properties of Soils, Hydraulic and Mechanical Properties of Soils, Drainage of Soils, Plastic Equilibrium in Soils, Earth Stability and Pressure of Slopes, Foundations, etc. A valuable compendium for those interested in soil mechanics, this antiquarian text contains a wealth of information still very much valuable to engineers today. Karl von Terzaghi (1883 1963) was a Czech geologist and Civil engineer, hailed as the "father of soil mechanics." This book has been elected for republication due to its educational value and is proudly republished here with an introductory biography of the author."
Book Synopsis Handbook of Geotechnical Investigation and Design Tables by : Burt G. Look
Download or read book Handbook of Geotechnical Investigation and Design Tables written by Burt G. Look and published by CRC Press. This book was released on 2007-04-26 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical handbook of properties for soils and rock contains, in a concise tabular format, the key issues relevant to geotechnical investigations, assessments and designs in common practice. In addition, there are brief notes on the application of the tables. These data tables are compiled for experienced geotechnical professionals who require a reference document to access key information. There is an extensive database of correlations for different applications. The book should provide a useful bridge between soil and rock mechanics theory and its application to practical engineering solutions. The initial chapters deal with the planning of the geotechnical investigation, the classification of the soil and rock properties and some of the more used testing is then covered. Later chapters show the reliability and correlations that are used to convert that data in the interpretative and assessment phase of the project. The final chapters apply some of these concepts to geotechnical design. This book is intended primarily for practicing geotechnical engineers working in investigation, assessment and design, but should provide a useful supplement for postgraduate courses.
Book Synopsis Encyclopedia of Engineering Geology by : Peter T. Bobrowsky
Download or read book Encyclopedia of Engineering Geology written by Peter T. Bobrowsky and published by Springer. This book was released on 2018-08-03 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses the multi-disciplinary topic of engineering geology and the environment, one of the fastest growing, most relevant and applied fields of research and study within the geosciences. It covers the fundamentals of geology and engineering where the two fields overlap and, in addition, highlights specialized topics that address principles, concepts and paradigms of the discipline, including operational terms, materials, tools, techniques and methods as well as processes, procedures and implications. A number of well known and respected international experts contributed to this authoritative volume, thereby ensuring proper geographic representation, professional credibility and reliability. This superb volume provides a dependable and ready source of information on approximately 300 topical entries relevant to all aspects of engineering geology. Extensive illustrations, figures, images, tables and detailed bibliographic citations ensure that the comprehensively defined contributions are broadly and clearly explained. The Encyclopedia of Engineering Geology provides a ready source of reference for several fields of study and practice including civil engineers, geologists, physical geographers, architects, hazards specialists, hydrologists, geotechnicians, geophysicists, geomorphologists, planners, resource explorers, and many others. As a key library reference, this book is an essential technical source for undergraduate and graduate students in their research. Teachers/professors can rely on it as the final authority and the first source of reference on engineering geology related studies as it provides an exceptional resource to train and educate the next generation of practitioners.
Book Synopsis Basics of Foundation Design by : Bengt Fellenius
Download or read book Basics of Foundation Design written by Bengt Fellenius and published by Lulu.com. This book was released on 2017-03-17 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "Red Book" presents a background to conventional foundation analysis and design. The text is not intended to replace the much more comprehensive 'standard' textbooks, but rather to support and augment these in a few important areas, supplying methods applicable to practical cases handled daily by practising engineers and providing the basic soil mechanics background to those methods. It concentrates on the static design for stationary foundation conditions. Although the topic is far from exhaustively treated, it does intend to present most of the basic material needed for a practising engineer involved in routine geotechnical design, as well as provide the tools for an engineering student to approach and solve common geotechnical design problems.
Book Synopsis The Deep Mixing Method by : Masaki Kitazume
Download or read book The Deep Mixing Method written by Masaki Kitazume and published by CRC Press. This book was released on 2013-02-21 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Deep Mixing Method (DMM), a deep in-situ soil stabilization technique using cement and/or lime as a stabilizing agent, was developed in Japan and in the Nordic countries independently in the 1970s. Numerous research efforts have been made in these areas investigating properties of treated soil, behavior of DMM improved ground under static and d
Download or read book Soil Mechanics written by Victor Kaliakin and published by Butterworth-Heinemann. This book was released on 2017-01-22 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Mechanics: Calculations, Principles, and Methods provides expert insights into the nature of soil mechanics through the use of calculation and problem-solving techniques. This informed reference begins with basic principles and calculations, illustrating physical meanings of the unit weight of soil, specific gravity, water content, void ratio, porosity, saturation, and their typical values. This is followed by calculations that illustrate the need for soil identification, classification, and ways to obtain soil particle size distribution, including sizes smaller than 0.075mm, performance, and the use of liquid and plastic limit tests. The book goes on to provide expert coverage regarding the use of soil identification and classification systems (both Unified Soil Classification System and AASHTO), and also includes applications concerning soil compaction and field applications, hydraulic conductivity and seepage, soil compressibility and field application, and shear strength and field application. - Presents common methods used for calculating soil relationships - Covers soil compressibility and field application and calculations - Includes soil compaction and field application calculations - Provides shear strength and field application calculations - Includes hydraulic conductivity and seepage calculations
Download or read book Lunar Sourcebook written by Grant Heiken and published by CUP Archive. This book was released on 1991-04-26 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.
Book Synopsis Ground Characterization and Foundations by : C. N. V. Satyanarayana Reddy
Download or read book Ground Characterization and Foundations written by C. N. V. Satyanarayana Reddy and published by Springer Nature. This book was released on 2021-09-26 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the select proceedings of the Indian Geotechnical Conference (IGC) 2020. The contents focus on recent developments in geotechnical engineering for a sustainable tomorrow. The book covers the topics related to traditional and latest methods in characterisation of ground at construction sites, recent technological developments/ advances in design of shallow and deep foundations in different subsoil conditions.
Book Synopsis Energy Bands in Semiconductors by : Donald Long
Download or read book Energy Bands in Semiconductors written by Donald Long and published by . This book was released on 1968 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Soil and Rock Properties by : P. J. Sabatini
Download or read book Evaluation of Soil and Rock Properties written by P. J. Sabatini and published by . This book was released on 2004-10-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents state-of-the-practice information on the evaluation of soil and rock properties for geotechnical design applications. This document addresses the entire range of materials potentially encountered in highway engineering practice, from soft clay to intact rock and variations of materials that fall between these two extremes. Information is presented on parameters measured, evaluation of data quality, and interpretation of properties for conventional soil and rock laboratory testing, as well as in situ devices such as field vane testing, cone penetration testing, dilatometer, pressuremeter, and borehole jack. This document provides the design engineer with information that can be used to develop a rationale for accepting or rejecting data and for resolving inconsistencies between data provided by different laboratories and field tests. This document also includes information on: (1) the use of Geographical Information Systems (GIS) and Personal Data Assistance devices for the collection and interpretation of subsurface information; (2) quantitative measures for evaluating disturbance of laboratory soil samples; and (3) the use of measurements from geophysical testing techniques to obtain information on the modulus of soil. Also included are chapters on evaluating properties of special soil materials (e.g., loess, cemented sands, peats and organic soils, etc.) and the use of statistical information in evaluating anomalous data and obtaining design values for soil and rock properties. An appendix of three detailed soil and rock property selection examples is provided which illustrate the application of the methods described in the document.
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.
Download or read book Geotechnical Abstracts written by and published by . This book was released on 1976 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
