Download or read book Field Load Tests of Instrumented Drilled Shafts at Florida written by and published by . This book was released on 1978 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Load Testing of Instrumented Drilled Shaft written by Frank C. Townsend and published by . This book was released on 1991 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilled Shafts written by National Highway Institute (U.S.) and published by . This book was released on 1988 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document was written as a resource for participants in a short course covering the topic of construction and design of drilled shaft foundations for bridges and other structures. It is the second edition of a Federal Highway Administration workbook on construction and design of drilled shafts. The first edition was written in 1988 (FHWA-SA-HI-88-042). While introductory material from the 1988 edition was retained, the emphasis in this document is on providing relatively comprehensive information for engineers who already have some experience with drilled shaft construction and/or design. The initial chapters cover an overview of the characteristics of drilled shafts, site investigations for drilled shafts (to collect information for both construction and design), and details of drilled shaft construction. These chapters are followed by several chapters on the design of drilled shafts in soil and rock for both axial and lateral loading, with examples. Both allowable stress design and load and resistance factor design principles are addressed. Details of design calculations procedures are provided in the appendices.
Download or read book Dynamic and Static Load Testing of an Instrumented Drilled Shaft written by John F. Theos and published by . This book was released on 1991 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field load tests of instrumented drilled shafts in coral limestone written by Kenneth James Nyman and published by . This book was released on 1980 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotechnical Instrumentation for Monitoring Field Performance written by John Dunnicliff and published by John Wiley & Sons. This book was released on 1993-10-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book on the subject written by a practitioner forpractitioners. Geotechnical Instrumentation for Monitoring FieldPerformance Geotechnical Instrumentation for Monitoring FieldPerformance goes far beyond a mere summary of the technicalliterature and manufacturers’ brochures: it guides readersthrough the entire geotechnical instrumentation process, showingthem when to monitor safety and performance, and how to do it well.This comprehensive guide: * Describes the critical steps of planning monitoring programsusing geotechnical instrumentation, including what benefits can beachieved and how construction specifications should bewritten * Describes and evaluates monitoring methods and recommendsinstruments for monitoring groundwater pressure, deformations,total stress in soil, stress change in rock, temperature, and loadand strain in structural members * Offers detailed practical guidelines on instrument calibrations,installation and maintenance, and on the collection, processing,and interpretation of instrumentation data * Describes the role of geotechnical instrumentation during theconstruction and operation phases of civil engineering projects,including braced excavations, embankments on soft ground,embankment dams, excavated and natural slopes, undergroundexcavations, driving piles, and drilled shafts * Provides guidelines throughout the book on the best practices
Download or read book Analysis and Design of Shallow and Deep Foundations written by Lymon C. Reese and published by John Wiley & Sons. This book was released on 2005-11-25 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-of-a-kind coverage on the fundamentals of foundation analysis and design Analysis and Design of Shallow and Deep Foundations is a significant new resource to the engineering principles used in the analysis and design of both shallow and deep, load-bearing foundations for a variety of building and structural types. Its unique presentation focuses on new developments in computer-aided analysis and soil-structure interaction, including foundations as deformable bodies. Written by the world's leading foundation engineers, Analysis and Design of Shallow and Deep Foundations covers everything from soil investigations and loading analysis to major types of foundations and construction methods. It also features: * Coverage on computer-assisted analytical methods, balanced with standard methods such as site visits and the role of engineering geology * Methods for computing the capacity and settlement of both shallow and deep foundations * Field-testing methods and sample case studies, including projects where foundations have failed, supported with analyses of the failure * CD-ROM containing demonstration versions of analytical geotechnical software from Ensoft, Inc. tailored for use by students in the classroom
Download or read book Drilled Shafts written by Michael W. O'Neill and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single Piles and Pile Groups Under Lateral Loading written by Lymon C. Reese and published by CRC Press. This book was released on 2010-12-15 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complexities of designing piles for lateral loads are manifold as there are many forces that are critical to the design of big structures such as bridges, offshore and waterfront structures and retaining walls. The loads on structures should be supported either horizontally or laterally or in both directions and most structures have in common t
Download or read book Static and Dynamic Field Testing of Drilled Shafts written by and published by . This book was released on 2003 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Case History Evaluation of the Behavior of Drilled Shafts Under Axial and Laterial Loading written by Yit-Jin Chen and published by . This book was released on 1993 with total page 1056 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Laterally Loaded Drilled Shafts in Rock written by Ke Yang and published by . This book was released on 2006 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drilled shafts socketed into rock are widely used as foundations for bridges and other important structures. Rock-socketed drilled shafts are also used to stabilize a landslide. The main loads applied on the drilled shafts are axial compressive or uplift loads as well as lateral loads with accompanying moments. Although there exist several analysis and design methods especially for rock-socketed drilled shafts under lateral loading, these methods were developed with assumptions without actual validations with field load test results. Some of the methods have been found to provide unsafe designs when compared to recently available field test data. Therefore, there is a need to develop a more rational design approach for laterally loaded drilled shafts socketed in rock. A hyperbolic non-linear p-y criterion for rock is developed in this study that can be used in conjunction with existing computer programs, such as COM624P, LPILE, and FBPIER, to predict the deflection, moment, and shear responses of a shaft under the applied lateral loads. Considerations for the effects of joints and discontinuities on the rock mass modulus and strength are included in the p-y criterion. Evaluations based on comparisons between the predicted and measured responses of full-scale lateral load tests on fully instrumented drilled shafts have shown the applicability of the proposed p-y criterion and the associated methods for determining the required input of rock parameters. In addition to the development of a hyperbolic p-y criterion for rock, a method for predicting lateral capacities of drilled shafts in rock and/or soils is developed for assessing the safety margin of the designed shafts against the design loads. A computer program LCPILE is developed using VC++ to facilitate computations. An elastic solution based on a variational approach is also developed for determining drilled shaft elastic deflection due to applied lateral loads in a two-layer soil layer system. The computational algorithm was coded in a Mathematical file for easy application. Finally, Briaud's method for deriving p-y curves of rock from pressuremeter or dilatometer test results is evaluated using available field test data. A modification to the Briaud's method is recommended for applications in rocks.
Download or read book Field Tests of Large Diameter Drilled Shafts written by Sharon A. Naramore and published by . This book was released on 1990 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Overview for Design and Construction of Drilled Shafts in Cohesive Soils written by Lawrence D. Johnson and published by . This book was released on 1981 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laterally Loaded Drilled Shafts from Full Scale Field Tests written by Sarah A. Myers and published by . This book was released on 2014 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current engineering guidelines of drilled shafts subject to lateral loading contain numerous approximations leading to design issues faced by the Missouri Department of Transportation (MoDOT). In designing deep foundations it is important to understand the behavior of drilled shafts under lateral loading. The objective of the research is to develop the "true" drilled shafts response to lateral loading by conducting full-scale field tests. Twenty-five drilled shafts were constructed at two sites in Missouri as part of a previous "geotechnical thrust" research program. In order to measure the response of the foundations to static lateral loading, sixteen full-scale lateral load field tests were performed on the drilled shafts. All the tests were conducted in pairs therefore two foundations were loaded and monitored simultaneously. The data acquired from the field load tests were reduced and analyzed following conventional data reduction procedures to establish the observed lateral response of the drilled shafts in terms of load and deflection. The measured load-displacement curves were compared to the predicted loaddisplacement curves used by the commercial software program L-Pile. The data also allowed characterizing the variability and uncertainty involved with the prediction of the lateral response of drilled shafts.
Download or read book Evaluation of Torsional Load Transfer for Drilled Shaft Foundations written by Armin Wilhelm Stuedlein and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the prevalence of the use of drilled shafts for the support of traffic signal and signs along state highways, relatively little is known about the torsional load transfer between the structure and soil providing its support. A review of literature indicated that just three full-scale torsional loading test series have been conducted, and these did not report the observation of the torsional load transfer. To help address this gap in knowledge, two instrumented test shafts, which were designed to support signal pole type SM3 based on ODOT Standard Drawing TM653, were constructed to evaluate the torsional capacity and load transfer of these shafts at full-scale at the Oregon State University (OSU) Geotechnical Engineering Field Research Site (GEFRS). Two shafts were constructed: one shaft designated as the torsion test drilled shaft with production base (TDS) was constructed using the dry method, whereas another shaft designated as the torsional drilled shaft with frictionless base (TDSFB) was constructed by placing bentonite chips the bottom of the cavity to create near-zero base shear condition. Monotonic, quasi-static and cyclic loading tests were performed using two hydraulic actuators and a displacement couple. The imposed rotation and corresponding torque was monitored using stringpotentiometers and load cells, respectively. Embedded strain gages were installed on both test shafts over five depths to measure shear strains and reveal the load transfer of the drilled shafts in torsion. The torsional load transfer is back-calculated from the instrumentation data and described in detail. Existing design procedures for predicting torsional capacity of drilled shafts were investigated. The CDOT Design Method and the Florida District 7 Method, both of which can treat layered cohesive and cohesionless soils, were selected to estimate the torsional capacities of the test shafts and compared with the test results. However, these design methods appeared to over- and under-predict the torsional capacity, respectively, indicating the need for the development of improved methods for assessing torsional capacity.
Download or read book Test Loading of Drilled Shafts written by Anwar Hirany and published by . This book was released on 1988 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
