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Tính tóan móng cọc Pile Foundation Design: A Student Guide Ascalew Abebe & Dr Ian GN Smith School of the Built Environment, Napier University, Edinburgh(Note: This Student Guide is intended as just that - a guide for students of civilengineering.Use it as you see fit, but please note that there is no technical support available toanswer any questions about the guide!) PURPOSE OF THE GUIDEThere are many texts on pile foundations. Generally, experience shows us thatundergraduates find most of these texts complicated and difficult tounderstand.This guide has extracted the main points and puts together the whole process ofpile foundation design in a student friendly manner.The guide is presented in two versions: text-version (compendium from) andthis web-version that can be accessed via internet or intranet and can be used asa supplementary self-assisting students guide.STRUCTURE OF THE GUIDEIntroduction to pile foundationsPile foundation designLoad on pilesSingle pile designPile group designInstallation-test-and factor of safetyPile installation methodsTest pilesFactors of safetyChapter 1 Introduction to pile foundations1.1 Pile foundations1.2 Historical1.3 Function of piles1.4 Classification of piles1.4.1 Classification of pile with respect to load transmission and functional behaviour1.4.2 End bearing piles1.4.3 Friction or cohesion piles1.4.4 Cohesion piles1.4.5 Friction piles1.4.6 Combination of friction piles and cohesion piles1.4.7 .Classification of pile with respect to type of material1.4.8 Timber piles1.4.9 Concrete pile1.4.10 Driven and cast in place Concrete piles1.4.11 Steel piles1.4.12 Composite piles1.4.13 Classification of pile with respect to effect on the soil1.4.14 Driven piles1.4.15 Bored piles1.5 Aide to classification of piles1.6 Advantages and disadvantages of different pile material1.7 Classification of piles - ReviewChapter 2 Load on piles2.1 Introduction2.2 Pile arrangementChapter 3 Load Distribution3.1 Pile foundations: vertical piles only3.2 Pile foundations: vertical and raking piles3.3 Symmetrically arranged vertical and raking piles3.3.1 Example on installation errorChapter 4 Load on Single Pile4.1 Introduction4.2 The behaviour of piles under load4.3 Geotechnical design methods4.3.1 The undrained load capacity (total stress approach)4.3.2 Drained load capacity (effective stress approach)4.3.3 Pile in sand4.4 Dynamic approachChapter 5 Single Pile Design5.1 End bearing piles5.2 Friction piles5.3 Cohesion piles5.4 Steel piles5.5 Concrete piles5.5.1 Pre-cast concrete piles5.6 Timber piles (wood piles)5.6.1 Simplified method of predicting the bearing capacity of timber pilesChapter 6 Design of Pile Group6.1 Bearing capacity of pile groups6.1.1 Pile group in cohesive soil6.1.2 Pile groups in non-cohesive soil6.1.3 Pile groups in sandChapter 7 Pile Spacing and Pile ArrangementChapter 8 Pile Installation Methods8.1 Introduction8.2 Pile driving methods (displacement piles)8.2.1 Drop hammers8.2.2 Diesel hammers8.2.3 Pile driving by vibrating8.3 Boring methods (non-displacement piles)8.3.1 Continuous Flight Auger (CFA)8.3.2 Underreaming8.3.3 C.H.PChapter 9 Load Tests on Piles9.1 Introduction9.1.1 CRP (constant rate of penetration)9.1.2 MLT, the maintained increment load testChapter 10 Limit State Design10.1 Geotechnical category GC 110.2 Geotechnical category GC 210.3 Geotechnical category GC 310.3.1 Conditions classified as in Eurocode 710.4 The partial factors γ m, γ n, γ RdIntroduction to pile foundationsObjectives: Texts dealing with geotechnical and ground engineeringtechniques classify piles in a number of ways. The objective of this unit is that inorder to help the undergraduate student understand these classifications usingmaterials extracted from several sources, this chapter gives an introduction topile foundations.1.1 Pile foundationsPile foundations are the part of a structure used to carry and transfer the load ofthe structure to the bearing ground located at some depth below groundsurface. The main components of the foundation are the pile cap and the piles.Piles are long and slender members which transfer the load to deeper soil orrock of high bearing capacity avoiding shallow soil of low bearing capacity Themain types of materials used for piles are Wood, steel and concrete. Piles madefrom these materials are driven, drilled or jacked into the ground and connectedto pile caps. Depending upon type of soil, pile material and load transmittingcharacteristic piles are classified accordingly. In the following chapter we learnabout, classifications, functions and pros and cons of piles.1.2 HistoricalPile foundations have been used as load carrying and load transferring systemsfor many years.In the early days of civilisation[2], from the communicat ...