Download or read book The In situ Properties of Clay Soil in Pekan Using Cone Penetration Test written by Nur Zaki Arbain and published by . This book was released on 2010 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Prediction of Clay Soil Properties Using the Piezocone Penetration Test written by Douglas Neil Brown and published by . This book was released on 1993 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In situ Characterization of Soils written by K.R. Saxena and published by CRC Press. This book was released on 2003-01-01 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this book describe various in-situ tests, routine and soil-specific, being used in various countries. The work opens new vistas of improvement in in-situ tests for soils to suit certain specific soil-structure interaction and designed performance of structure

Download or read book Applications of the Electronic Cone Penetration Test for the Geotechnical Site Investigation of Florida Soils written by Kenneth Knox and published by . This book was released on 2019-05-31 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The purpose of this research project was to evaluate techniques to improve the application of in situ penetration testing to Florida soils, with emphasis on the electronic cone penetrometer test (ECPT). Topics addressed included describing the spatial variability of soil properties, classifying Florida soils with the ECPT, and correlating the ECPT with the standard penetration test (SPT). A collateral purpose was to create an in situ test data base consisting of 97 ECPT soundings and 79 SPT tests. This data base was subsequently evaluated using statistical analysis. The spatial variability study was carried out to evaluate methods of interpolation between test soundings. The techniques studied included three deterministic approaches (the mean, median, and a 10% trimmed average), three distance-weighting methods (two based on reciprocal distances, and linear interpolation), a random field model (a hybrid distance-weighting/regression model), and regression analysis. While none of the approaches stood out as consistently superior predictors, the deterministic approaches were generally inferior to the other, more sophisticated methods. The distance-weighting methods and the random field model performed comparably, but were sensitive to individual test soundings. The regression models predicted slightly better on the average, and with more stability. The ECPT classification study used parametric and nonparametric discriminant analysis of cone data on soils that had been identified from the SPT test. The ECPT was able to group soil accurately into one of seven categories (organics, clay, silt, clayey sand, silty sand, sand, weathered rock) approximately 40% of the time. This percentage increased to 70% when the three sand categories were combined, reflecting the SPT drillers' difficulties in discriminating silty soils. In the SPT-ECPT correlation study, average q^/N ratios for Florida soils were much higher than expected, possibly due to cementation or liquefaction. Regression analysis of the data suggested that the nature of the SPT-ECPT relationship is more a function of the magnitude of the tip resistance, and less of the actual soil type. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Applications of the Electronic Cone Penetration Test for the Geotechnical Site Investigation of Florida Soils" by Kenneth James Knox, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.

Download or read book Interpretation of Cone Penetration Tests in Cohesive Soils written by Kwangkyum Kim and published by . This book was released on 2006-12-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Penetrometer and Soil Exploration written by G. Sanglerat and published by Elsevier. This book was released on 2012-12-02 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Penetrometer and Soil Exploration: Interpretation of Penetration Diagrams—Theory presents the many uses of the penetrometer for investigating soil conditions. Testing methods include the following: (1) in situ load tests on full-scale foundations; (2) laboratory testing of undisturbed samples, and (3) in situ testing of soils. The book regards the advantages of using the penetrometer as a handy tool in drilling and sampling. The text emphasizes that the investigator should never rely entirely on the analogy or the extrapolation of information pertaining to a nearby site. The text describes the different shapes of the penetrometer diagrams obtained from tests in homogeneous cohesionless soil, as well as the significance of the embedment of a pile into the bearing stratum for deep foundation designs. The paper discusses the De Beer theory, Kerisel's theory, and the theory developed at the Delft Laboratory of Soil Mechanics. The laboratory determines the maximum soil pressure and the corresponding embedment of the pile. According to Professor L'Herminier, "the bearing capacity of a pile may be determined...from laboratory tests on soil samples, the other by extrapolating penetrometer data." The book is suitable for structural engineers, civil engineers, geologists, architects, and students of soil mechanics.

Download or read book The Use of Continuous Intrusion Miniature Cone Penetration Testing in Estimating the Resilient Modulus of Cohesive Soils written by HH. Titi and published by . This book was released on 2003 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents an application of the continuous intrusion miniature cone penetration testing in evaluating the resilient modulus of cohesive soils. Four cohesive soils were selected for the field and laboratory testing program. The field tests were performed on these soils using the continuous intrusion miniature cone penetration test system. The laboratory testing program included repeated load triaxial tests on undisturbed soil samples, and soil physical and strength properties testing. A statistical analysis was performed on the test results of two soils to develop a correlation among the resilient modulus, cone penetration test parameters, in-situ stresses, and soil properties. The model was used to predict the resilient modulus of other two soils. The predicted and measured values of the resilient modulus were in agreement.

Download or read book Vane Shear and Cone Penetrtion Resistance Testing of In situ Soils written by and published by ASTM International. This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Texas Cone Penetrometer Test to Predict Undrained Shear Strength of Clays written by Hariharan Vasudevan and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The cone penetration test used in Texas is termed as Texas cone penetrometer (TCP), which works on dynamic principles similar to those of SPT, i.e. a hammer is used to drive the cone device for a preset depth of penetration of 12 inches. Results are typically reported in the form of N12 values. Correlations between N12 and soil strength properties are currently used by the TxDOT to determine in situ strength properties of soils prior to any infrastructure design. The currently used relationship between the penetrometer test N12 value and undrained shear strength was found to be lower bound for the data obtained from Dallas and Fort Worth regions. Hence, improved correlations were established between TCP test results and undrained shear strength for cohesive soils via statistical regression methods. Comparisons of undrained shear strength predicted by these new correlations with both measured strength and predicted undrained shear strength by the current geotechnical manual showed the reliable and improved predictions by the recommended model for stiff clays. These correlations still need to be evaluated with more independent TCP data to further validate their interpretations. (Abstract shortened by UMI.).

Download or read book Interpretation of In Situ Testing of Cohesive Soils Using Rational Methods written by and published by . This book was released on 1992 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research uses theoretical analyses to investigate the fundamental mechanisms controlling the performance of common in-situ penetration tests which are used to estimate the engineering properties of cohesive soils. The mechanics of penetration processes are modelled using the Strain Path Method together with generalized effective stress soil models. The analytical predictions provide a rational basis for establishing how soil properties are related to in-situ measurements. The predictions are evaluated by comparison with field data from well documented test sites. Results of this research show the following: (1) The cone resistance and excess pore pressures measured on the face of the cone during piezocone penetration are the most reliable measurements for estimating changes in undrained shear strength within a given clay deposit. (2) There is no rational basis for correlations between dilatometer contact pressures and in situ K sub O stresses, undrained shear strength or preconsolidation pressure. (3) Model predictions provide a reliable basis for estimating the horizontal coefficient of permeability for normally and lightly overconsolidated clays (OCR

Download or read book In situ Determination of Drained and Undrained Soil Strength Using the Cone Penetration Test written by Joseph Michael Keaveny and published by . This book was released on 1985 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Normalization and Prediction of Geotechnical Properties Using the Cone Penetrometer Test CPT written by Richard Scott Olsen and published by . This book was released on 1994 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was to develop techniques for (1) stress normalization of CPT measurements (and geotechnical properties) and (2) CPT prediction of geotechnical properties using cone and sleeve friction resistance values. Stress normalization allows a variable geotechnical property to be reduced to an equivalent value at a standard confining stress. A new concept, the Stress Focus, was identified which provides a basis for understanding soil strength as a function of confining stress. This study demonstrated that sand friction angles for different initial relative densities converge to a Stress Focus at high confining stress (approximately 100 atm), where the strength behavior is similar to that of a sedimentary rock. Dilation of dense sands decreases with increased confining stress until the Stress Focus is reached, as confirmed using historic high pressure triaxial test data as well with CPT measurements from laboratory chamber tests and uniform soil layers. The paths of convergence to the Stress Focus are exponentially related to confining stress and are the basis for development of CPT cone and sleeve friction resistance normalization techniques. The overburden stress at the Stress Focus is soil type dependent. The stress exponent for SPT normalization was shown to be equal to the CPT derived stress exponent. CPT correlations to geotechnical properties were established using both CPT cone resistance and friction ratio. Geotechnical properties, Stress exponent, Sand friction angles, Stress normalization, Soil strength.

Download or read book Vane Shear and Cone Penetration Resistance Testing of In Situ Soils written by Committee D-18 Staff and published by . This book was released on 1966 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Basic Soil Properties and Shear Strength of Pekan Soft Clay written by Mohd Faruq Sa'adon and published by . This book was released on 2009 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft clay soil can be categorized as problematic soil. The low strength and high compressibility characteristics the soil had, are the major reasons why a careful design analysis could be taken for any structure built on it. Due to these problems, soil investigation on the basic properties and shear strength of the soil must be carried out. This soft clay study has contributed to local engineering studies regarding the basic soil properties and shear strength in Langgar and Pahang Tua soil, where both are located in Pekan. Attempts were made to analyze the soil samples in laboratory. Overall, from the basic soil properties results, there are strong potential for the soil in Langgar and Pahang Tua to be concluded as soft clay type of soil. From the requirement set by American Association of State Highway and Transportation Officials (AASTHO), both Langgar and Pahang Tua soil samples have been dominant by clay particles with more than 35% passing the No.200 sieve, which are 52% in Langgar and 57% in Pahang Tua. The natural moisture content in Langgar and Pahang Tua soil samples are each 57% and 48% which are within the range of moisture content for soft clay soil. For atterberg limit results, Langgar has liquid limit of 51% and plastic limit of 26%. For Pahang Tua, the liquid limit and plastic limit result are 58% and 27%. Based on plasticity chart, both Langgar and Pahang Tua have been determined to be plotted as clay with high plasticity. The shear strength test results have clearly shown the weakness of Langgar and Pahang Tua soil which are within the strength of a soft clay. Both Langgar and Pahang Tua have 19.18kPa and 21.11kPa of shear strength. The results that have been determined from this study can give an extra dimension and usage for engineers to use for any preliminary design in the area of Pekan. The results data of the basic soil properties and shear strength could also allow a quick and economic alternative in order to design for construction on soft clay soil.

Download or read book In situ Determination of Soil Compressibility Using Piezometer Cone Penetration Testing PCPT written by Ismail Bakar and published by . This book was released on 1981 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of In Situ Vane Cone Penetrometer and Laboratory Test Results for Gulf of Mexico Deepwater Clays written by RJ. Ebelhar and published by . This book was released on 1988 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site investigations were recently performed offshore at three prospective plat-form sites in water depths between 400 and 500 m in the Gulf of Mexico. Soil conditions at the sites generally range from very soft clays near the seafloor to very stiff clays at 120- to 150-m penetration. Analyses of stress history indicate the soils at these locations are generally normally consolidated. Laboratory tests were performed on recovered specimens to deter-mine the undrained shear strength. Standard laboratory miniature vane shear tests and unconsolidated-undrained triaxial tests were performed in addition to consolidated-undrained tests using stress history and normalized soil engineering properties (SHANSEP) procedures. Tests performed in the field included in-situ vane and cone penetrometer. Cone factors Nk were computed using in-situ vane shear strengths as the reference strength.

Download or read book Dynamic Cone Penetration Test to Assess the Mechanical Properties of the Subgrade Soil written by Xiadong Luo and published by . This book was released on 1998 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: