Behavior of Pipe Piles in Sand

Plugging and Pore-Water Pressure Generation During Installation and Loading

  • Magued Iskander

Table of contents

  1. Front Matter
  2. Magued Iskander
    Pages 1-6
  3. Magued Iskander
    Pages 127-176
  4. Magued Iskander
    Pages 177-186
  5. Magued Iskander
    Pages 187-194
  6. Magued Iskander
    Pages 245-249
  7. Back Matter

About this book

Introduction

One of the major difficulties in predicting the capacity of pipe piles in sand has resulted from a lack of understanding of the physical processes that control the behavior of piles during installation and loading.

This monograph presents a detailed blue print for developing experimental facilities necessary to identify these processes. These facilities include a unique instrumented double-walled pipe-pile that is used to delineate the frictional stresses acting against the external and internal surfaces of the pile. The pile is fitted with miniature pore-pressure transducers to monitor the generation of pore water pressure during installation and loading. A fast automatic laboratory pile hammer capable of representing the phenomena that occur during pile driving was also developed and used. Finally, a pressure chamber; feedback control system; data acquisition system; loading frame; sand handling, pluviating, saturating, and drying apparatus have been integrated to allow convenient load testing of piles under simulated field conditions. The experimental apparatus is presented with sufficient details to allow readers to duplicate or modify the design to suit their own needs.

A number of load tests were carried out to identify the effects of inertia and build-up of pore water pressure on pile plugging. Continuous measurement of dynamic and static excess pore pressures, frictional and end bearing stresses, and the elevation of the soil inside the pile during installation and loading are presented. The results of the testing program validates the performance of the developed apparatus, and provide unique insights into soil-structure interaction during pile driving and subsequent loading. The work contributes to a better understanding of pile behavior.

Keywords

Calibration Chamber Centrifuge Drilled Shafts Experimental Modelling Geotechnical Instrumentation Hammer Load Test Mechanics Physical Modelling Piles Plugging Pore Water Pressure Sand Soil Soil Structure Interaction

Authors and affiliations

  • Magued Iskander
    • 1
  1. 1.Civil Engineering DepartmentPolytechnic Institute of New York UniversityBrooklynUSA

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-13108-0
  • Copyright Information Springer Berlin Heidelberg 2011
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Engineering
  • Print ISBN 978-3-642-13107-3
  • Online ISBN 978-3-642-13108-0
  • Series Print ISSN 1866-8755
  • Series Online ISSN 1866-8763
  • About this book