Author: Richard J. FragaszyPublisher:
ISBN:
Category : Piling (Civil engineering).
Languages : en
Pages : 106
Book Description
Development of Guidelines for Construction Control of Pile Driving and Estimation of Pile Capacity
Author: Richard J. FragaszyPublisher:
ISBN:
Category : Piling (Civil engineering).
Languages : en
Pages : 106
Book Description
Development of Guidelines for Construction Control of Pile Driving and Estimation of Pile Capacity (Phase I)
Author: Richard J. FragaszyPublisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 83
Book Description
Development and Implementation of New Driven Pile Technology
Author: Robert Y. LiangPublisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 524
Book Description
Driven piles have been frequently used by highway engineers to support bridges, retaining walls, and overhead signs. Prior to pile driving, engineers need to estimate the required pile length based on soil information and soil mechanics principles. During pile driving, engineers need to verify the load-carrying capacity and integrity of each driven pile. The analysis tools for pile length estimation and dynamic pile testing techniques for pile-driving control constitute the two main focuses of this research.
Transportation Research Record
Author: Developing Production Pile Driving Criteria from Test Pile Data
Author: Dan A. BrownPublisher: Transportation Research Board
ISBN: 0309143357
Category : Technology & Engineering
Languages : en
Pages : 518
Book Description
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 418: Developing Production Pile Driving Criteria from Test Pile Data provides information on the current practices used by state transportation agencies to develop pile driving criteria, with special attention paid to the use of test pile data in the process.
Load and Resistance Factor Design (LRFD) for Deep Foundations
Author: Samuel G. PaikowskyPublisher: Transportation Research Board
ISBN: 0309087961
Category : Bridges
Languages : en
Pages : 87
Book Description
Introduction and research approach -- Findings -- Interpretation, appraisal, and applications -- Conclusions and suggested research -- Bibliography -- Appendixes.
Pile Driving Analysis for Pile Design and Quality Assurance
Author: Rodrigo SalgadoPublisher:
ISBN: 9781622604791
Category :
Languages : en
Pages :
Book Description
Driven piles are commonly used in foundation engineering. The most accurate measurement of pile capacity is achieved from measurements made during static load tests. Static load tests, however, may be too expensive for certain projects. In these cases, indirect estimates of the pile capacity can be made through dynamic measurements. These estimates can be performed either through pile driving formulae or through analytical methods, such as the Case method.Pile driving formulae, which relate the pile set per blow to the capacity of the pile, are frequently used to determine whether the pile has achieved its design capacity. However, existing formulae have numerous shortcomings. These formulae are based on empirical observations and lack scientific validation. This report details the development of more accurate and reliable pile driving formulae developed from advanced one-dimensional FE simulations. These formulae are derived for piles installed in five typical soil profiles: a floating pile in sand, an end¿bearing pile in sand, a floating pile in clay, an end¿bearing pile in clay and a pile crossing a normally consolidated clay layer and resting on a dense sand layer. The proposed driving formulae are validated through well-documented case histories of full-scale instrumented driven piles. The proposed formulae are more accurate and reliable on average than other existing methods for the case histories considered in this study.This report also discusses the development of a pile driving control system, a fully integrated system developed by Purdue that can be used to collect, process, and analyze data to estimate the capacities of piles using the Case method and the pile driving formulae developed at Purdue.
Comparison of Methods for Estimating Pile Capacity
Author: Richard J. FragaszyPublisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 80
Book Description
Load and Resistance Factor Design and Construction Control of Driven Piles in Intermediate Geomaterials
Author: Pramila AdhikariPublisher:
ISBN: 9781085629942
Category : Foundations
Languages : en
Pages : 188
Book Description
Static Analysis methods originally developed for soils are currently used for estimating pile resistances in Intermediate Geomaterials (IGMs), and structural capacity has been considered as the limiting pile capacity on hard rocks. The application of current Load and Resistance Factor Design (LRFD) for piles in IGMs has resulted in relatively high uncertainties in pile resistance estimation during design and the length to which the piles are driven into IGMs during construction. Moreover, the absence of standard criteria to differentiate the geomaterials creates challenges in the design and construction of driven piles in IGMs. The application of a dynamic analysis method using Wave Equation Analysis Program is constrained by geomaterial input for IGMs and rocks. These current challenges have led to conservative pile resistance estimations. Thus, the overall objectives of this study were to determine efficient static analysis methods, dynamic procedures for construction control, pile setup/relaxation, and resistance factors for the estimation of the axial pile resistances in IGMs, ensuring a prescribed level of reliability to meet LRFD philosophy. To accomplish these objectives, classification criteria of geomaterials were first created to establish a standard quantitative delineation between the soils, IGMs, and hard rocks for the design of driven piles. In addition, a catalog of IGM properties was prepared to facilitate the preliminary design of piles in IGMs. Secondly, a new set of design equations were developed and validated for IGMs by utilizing the developed geomaterial classification criteria. Thirdly, wave equation analysis procedures for IGMs were recommended for pile construction control. Fourthly, changes in pile resistances in IGMs with respect to time at an End of Driving and Beginning of Restrike were assessed. Finally, probability based resistance factors were calibrated and recommended based on the efficiency factors for the existing and calibrated static analysis methods. Calibrated static analysis methods were concluded to have higher efficiency factors of 0.61, 0.30, and 0.41 against efficiency factors of 0.28, 0.09, and 0.14 corresponding to existing static analysis methods for shaft resistance estimation in IGMs. Similarly, calibrated static analysis methods were concluded to have higher efficiency factors of 0.24 and 0.48 against efficiency factors of 0.13 and 0.29 corresponding to existing static analysis methods for end bearing estimation in IGMs.
Pile Design and Construction Practice
Author: Willis H. ThomasPublisher: CRC Press
ISBN: 0203964292
Category : Technology & Engineering
Languages : en
Pages : 566
Book Description
This international handbook is essential for geotechnical engineers and engineering geologists responsible for designing and constructing piled foundations. It explains general principles and practice and details current types of pile, piling equipment and methods. It includes calculations of the resistance of piles to compressive loads, pile group