Volume 6 – Geotechnical Manual, Site Investigation and Engineering ...

Chapter 9 FOUNDATION ENGINEERING
Table of Contents
Table of Contents .................................................................................................................. 9-i
List of Tables ...................................................................................................................... 9-iii
List of Figures ..................................................................................................................... 9-iii
9.1 INTRODUCTION .......................................................................................................... 9-1
9.2 DEEP FOUNDATION ..................................................................................................... 9-2
9.2.1 General ......................................................................................................... 9-2
9.2.2 Classification of Piles ....................................................................................... 9-2
9.2.2.1 Precast Reinforced Concrete Piles ....................................................... 9-2
9.2.3 Pile Foundation Design .................................................................................... 9-6
9.2.3.1 General ............................................................................................ 9-6
9.2.3.2 Design Philosophies ........................................................................... 9-6
9.2.3.4 Pile Capacity ..................................................................................... 9-8
9.2.4 Pile Loading Tests ........................................................................................ 9-13
9.2.4.1 General .......................................................................................... 9-13
9.2.4.2 Timing of Pile Tests ......................................................................... 9-14
9.2.4.3 Static Pile Loading Tests .................................................................. 9-14
9.2.5 Equipment ................................................................................................... 9-17
9.2.5.1 Measurement of Load ...................................................................... 9-17
9.2.5.2 Measurement of Pile Head Movement ............................................... 9-19
9.2.5.3 Test Procedures .............................................................................. 9-21
9.2.5.4 Instrumentation .............................................................................. 9-24
9.2.5.5 Interpretation of Test Results ........................................................... 9-25
9.2.6 Dynamic Loading Tests ................................................................................. 9-27
9.2.6.1 General .......................................................................................... 9-27
9.2.6.2 Test Methods .................................................................................. 9-27
9.2.6.3 Methods of Interpretation ................................................................ 9-28
9.2.6.4 Recommendations on the Use of Dynamic Loading Tests .................... 9-29
9.3 LATERALLY LOADED PILES ......................................................................................... 9-29
9.3.1 Introduction ................................................................................................. 9-29
9.3.2 Lateral Load Capacity of Pile .......................................................................... 9-31
9.3.3 Inclined Loads .............................................................................................. 9-39
9.3.4 Raking Piles in Soil ........................................................................................ 9-39
9.3.5 Lateral Loading ............................................................................................ 9-40
March 2009 9-i