Page 60 - Handbook GEOTEKNIK_Final_Neat

Definition of Deep Foundation Pile Classification

Based on

• Deep foundation is a foundation constructed in depth exceeding 3.0m from Material
formation level - Steel pile
- Precast
Concrete pile
• The depth to width ratio of the foundation is D/B > 3 - Cast in-situ
pile

PL
Based on Soil
Based on
Displacement Load Transfer
Notes : - Displacement Mechanism
Petunjuk
PL : Platform Level pile Pile
PL : Aras Pembentukkan
D : Kedalaman cerucuk (m)
D : Pile Depth - Non Classification - End bearing
B : Lebar/ diameter cerucuk (m) pile
B : Width/ Diameter of the pile displacement - Friction pile
B pile

• Two criteria shall be fulfilled in deep foundation design: Figure 32: Pile Classification
 Pile structure capacity > allowable bearing capacity of pile Based on

 Factor of Safety (FOS) Driving
Method
FOS for end bearing : 3 - Driven pile
FOS for skin friction : 2 - Pre-bore

- Jacked-in

44 PUBLIC WORKS DEPARTMENT MALAYSIA GEOTECHNICAL ENGINEERING HANDBOOK 45