Comprehensive Guide to Pile Foundations

Pile foundations are deep foundations consisting of long slender columnar elements, typically formed by a pile cap and single or group of piles. They are classified based on load-carrying characteristics, material of pile construction, and soil effects. Different installation methods include pile driving (displacement piles) and boring (non-displacement piles), with variations such as vibration, jacking, jetting, CFA, and underreaming. Understanding these classifications and installation techniques is crucial for civil engineers dealing with pile foundation projects.

• Pile Foundations
• Deep Foundations
• Load Transmission
• Pile Construction
• Soil Effects

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1. Pile foundation By: Namita Shedbal CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

2. Introduction Pile foundations are deep foundations formed by long slender columnar elements. They consist of two components: Pile cap single or group of piles. CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

3. Classification of pile foundations Classified based on load carrying characteristic of piles, material of pile construction, and type of soil. CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

4. Classification based on load transmission End bearing piles(point bearing) Friction piles CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

5. Classification based on material of piles construction: Timber piles Steel piles Concrete piles Composite piles CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

6. Classification based on the effect of soil Driven piles Bored piles CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

7. Pile Installation methods Pile driving methods (displacement piles) Dropping weight Vibration Jacking (only for micro piles) Jetting CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

8. Contd Boring methods (non-displacement piles) Continuous flight auger (CFA) Underreaming CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

9. Negative skin friction CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com

10. Thank you! CivilDigital.com CivilDigital.com for Civil Engineers Downloaded from CivilDigital.com Downloaded from CivilDigital.com