Download or read book Evaluating the Pressuremeter Test for Determining P y Curves for Laterally Loaded Driven Piles in Clay written by Farid Messaoud and published by . This book was released on 2006 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standardizing the Pressuremeter Test for Determining P y Curves for Laterally Loaded Driven Piles in Sands written by Percy Rodriguez James and published by . This book was released on 2005 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standardizing the Pressuremeter Test for Determining P y Curves for Laterally Loaded Piles written by and published by . This book was released on 2006 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of P y Curves by Direct Use of Cone Penetration Test CPT Data written by SHAWN SHAHRIAR ARIANNIA and published by . This book was released on 2015 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current best practice in geotechnical engineering in determining lateral capacity of piles is to replace the soil reaction with a series of independent springs. Basically, the model uses beam theory to represent the pile and uncoupled, non-linear load transfer functions, called p-y curves to represent the soil. Most of the existing methods for determining p-y curves are highly empirical, based on a limited number of cases of laterally loaded piles, which were instrumented, enabling to measure the pile deflection in discrete depth intervals subject to different lateral load (i.e. Matlock 1970, Reese 1975). In essence, these methods have their own limitations, and are mainly applicable for the conditions similar to the tested conditions. Although later, more detailed investigations by different people addressed some of the problems, still the basis of the existing design programs such as LPILE, or procedures introduced in applicable codes such as API (American Petroleum Institute), is the same original recommendations made by Matlock and Reese during seventies. In recent era, demand in employment of in-situ direct-pushed based methods using multi-measurement in-situ devices, such as the seismic cone penetration test with pore water measurement (SCPTu) and Seismic Flat Dilatometer Test (SDMT) is significantly increased. The main objective of this research is to introduce a unified CPT-based approach for determining p-y curves and pile responses to lateral loads. The suggested approach will provide explicit and defined steps/criteria to develop p-y curves for piles subjected to lateral loads using CPT data. CPT data will be used to determine soil strength parameters. Recent developments in relating CPT data to soil basic parameters using Critical State Soil Mechanics (CSSM) framework will be implemented in the suggested model. In all current common models, pre-determination of the soil behavior and the model to be used (e.g. Matlock clay, 1970 or Reese sand, 1975), will become warranted even before commencement of the analysis. On the contrary, in the proposed model, the need for the said pre-determination of soil behavior is eliminated. As discussed in Section 2.3.5, soil behavior in the model is being classified into four broad and general groups: drained-dilative, drained- contractive, undrained-dilative and undrained-contractive The main factor driving the suggested analytical approach is Soil Behavior Type Index, Ic. In the proposed approach, the SBT index, Ic, will be used to determine the in-situ characteristics and behavior of the soil. Based on the value of Ic calculated from CPT data, it could be determined that the soil behaves as a sand-like or a clay-like soil, and during the shearing would behave in undrained or drained condition. The measured shear wave velocity during field test using seismic cone penetration test or other methods such as SASW (Spectral Analysis of Surface Waves) or Cross-Hole logging, may be used to determine the small strain shear modulus, G0, which corresponds to the initial stiffness of the linear part of the p-y curve. In this research, the proposed model will be verified using collected case histories of laterally loaded piles with available CPT data at the same site. The p-y curves, and pile force-head displacements determined from the model will be compared to the field-resulted p-y curves and pile head displacement measurements available from the case histories.
Download or read book The Pressuremeter written by Jean-Louis Briaud and published by Routledge. This book was released on 2019-07-16 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic title deals presents all one needs to know about pressuremeter test, a soil and rock test used in civil engineering. It consists of placing a cylindrical probe in the ground and expanding the probe to pressurize the soil or the rock horizontally. The pressure on the soil and the relative increase in cavity radius are obtained and give an in situ stress strain curve. The pressuremeter test is repeated at various depths in order to obtain profiles of soil parameters. The design applications of the preboring pressuremeter test include: shallow foundations under vertical loads, deep foundations under vertical and horizontal loads, ground anchors, cantilever drilled shaft walls and anchored bulkheads, pavements, stone columns, ground improvement and compaction control.
Download or read book Application of Pressuremeter Testing to Assess Lateral Pile Response in Clays written by DV. Griffiths and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Typical lateral load magnitudes encountered on land and offshore are compared. The effect of pile deflection and stiffness response on jacket performance is discussed. The limitations of current design methods are noted. Alternative design procedures are given, using site specific pressuremeter load-deformation data and a quasi three-dimensional non-linear finite element method. Comparisons are made between the observed and computed behaviour of lateral load tests on small diameter piles in clay for which pressuremeter data are available. The problem of extrapolation to larger diameter single piles, and the behaviour of pile groups, is discussed.
Download or read book Pressuremeter Design Method for Single Piles Subjected to Static Lateral Load written by Trevor David Smith and published by . This book was released on 19?? with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Laterally Loaded Displacement Piles Using a Driven Pressuremeter written by RG. Campanella and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nonlinear subgrade reaction method is widely used for the design of laterally loaded piles. This method replaces the soil reaction with a series of independent springs. The nonlinear behavior of the soil springs is represented by P-y curves, which relate soil reaction and pile deflection at points along the pile length. Most of the existing methods for obtaining P-y curves are highly empirical. Often little account is taken of the method of pile installation. The pressuremeter offers an almost ideal in-situ modelling tool for determining directly the P-y curves for a pile. As the pressuremeter can either be driven or self-bored into the soil, the results can be used to model either a displacement or a non-displacement pile.
Download or read book Large Scale Pile Tests in Clay written by Institution of Civil Engineers (Great Britain) and published by Thomas Telford. This book was released on 1993-04-08 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 1980's, research was being carried out to instrument and monitor the piled foundation beneath one leg of the BP Magnus platform in order to determine the actual loads imposed on the piles and seabed by the structural and environmental forces. This volume brings together the findings and discussions resulting from this research.
Download or read book Side Friction Mobilization Rates for Laterally Loaded Piles from the Pressuremeter written by R. Slyh and published by . This book was released on 1985 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pile foundations in the offshore environment are frequently called upon to resist high horizontal load. Many pressuremeter methods have recently been developed to design piles, including techniques to formulate soil spring P-y curves directly from pressuremeter test results. Lateral soil resistance is now recognized to arise from two components: side shear and front resistance. The field measurement of mobilization rates and prediction of lateral side shear has never been made. This paper reports the attempts to measure lateral friction rates in sand and clay by employing torsion testing as a "yardstick" method. Pure lateral shears are mobilized and the effects of depth and installation method can be studied qualatively. It is suggested that since the soil shear modulus, G, is the controlling variable, the pressuremeter is a suitable insitu tool to duplicate pile installation disturbance and predict side shear mobilization rates.
Download or read book Pile Driving by Pile Buck written by Pile Buck International and published by Lulu.com. This book was released on 2009-11-13 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive reference for driven piles. Nearly six years in the making, Pile Driving by Pile Buck is a comprehensive reference book on the history of pile driving and driven piles, the various types of piles, the equipment used to install them, the design of driven pile foundations, the installation of driven piles and the capacity verification of driven piles. Not just another theoretical exercise, Pile Driving by Pile Buck gives practical procedures and equipment configurations for the successful installation of virtually any driven pile foundations. Included with the text are a wealth of photographs without equal in this type of publication; the photos alone are worth the price of the book, and help bring the reader "on site" to understand the whole process of pile driving--one of the oldest construction techniques known.
Download or read book P y Curve Data for Laterally Loaded Piles in Shale and Sandstone written by Jeffrey Frantzen and published by . This book was released on 1987 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ultimate Resistance of Laterally Loaded Rigid Piles in Clay written by Chaim Jehuda Poran and published by . This book was released on 1983 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pressuremeter Test for Highway Applications written by J.-L. Briaud and published by . This book was released on 1989 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design applications of the preboring pressuremeter (PBPMT) test include: shallow foundations under vertical loads, deep foundations under vertical and horizontal loads, ground anchors, cantilever drilled shaft walls and anchored bulkheads, pavements, ground improvement and compaction control. The PBPMT test is of little use in slope stability analysis and in conventional active and passive earth pressure problems although there is potential for future development in the earth pressure problem area.
Download or read book Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering written by The Organizing Committee of the 16th ICSMGE and published by IOS Press. This book was released on 2005-09-12 with total page 3742 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 16th ICSMGE responds to the needs of the engineering and construction community, promoting dialog and exchange between academia and practice in various aspects of soil mechanics and geotechnical engineering. This is reflected in the central theme of the conference 'Geotechnology in Harmony with the Global Environment'. The proceedings of the conference are of great interest for geo-engineers and researchers in soil mechanics and geotechnical engineering. Volume 1 contains 5 plenary session lectures, the Terzaghi Oration, Heritage Lecture, and 3 papers presented in the major project session. Volumes 2, 3, and 4 contain papers with the following topics: Soil mechanics in general; Infrastructure and mobility; Environmental issues of geotechnical engineering; Enhancing natural disaster reduction systems; Professional practice and education. Volume 5 contains the report of practitioner/academic forum, 20 general reports, a summary of the sessions and workshops held during the conference.
Download or read book Accuracy of Interpretation Methods for Deriving P y Curves From Model Pile Tests in Layered Soils written by B. Yuan and published by . This book was released on 2016 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of its simplicity and reasonable accuracy, the p-y-curve method is widely used for analyzing laterally loaded piles. The effectiveness of existing approaches for deriving p-y curves is case dependent; thus, a systematic assessment of these interpretation methods is necessary. This study compared p-y curves derived using four data interpretation methods. Instead of experiments, the numerical simulation program LPILE was used to produce hypothetical moment data for positions along a short pile in layered soil. The deduced p-y curves were compared with the "true" p-y curves used for numerical simulations to evaluate the accuracy of the interpretation methods. The comparison demonstrated that the cubic spline method and difference method were the best among the four considered methods for deriving p-y curves. However, the difference method generated a large resistance at the soil surface. Because of this error, the cubic spline method is the preferred method for deriving the response of a laterally loaded pile in layered soil. The results of this study will be useful for obtaining more accurate p-y curves from experimental data and for more effective planning of future experiments.
Download or read book Behavior of Piles in Full scale Field Lateral Loading Tests written by Steven Lawrence Kramer and published by . This book was released on 1991 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
