Pile Driving Formulas
Pile Driving Formulas
(OP)
We currently use Engineering News with a FS of 3 for temporary work bridge installation in remote areas with little to no geotechnical information. I noticed then FWHA has adopted the modified Gates formula. Could any give advice on risks ? as I realize the Engineering News formula has it's own draw backs.





RE: Pile Driving Formulas
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RE: Pile Driving Formulas
Jeff
RE: Pile Driving Formulas
http:
http://www.pz27.net
RE: Pile Driving Formulas
When I compared the factored equations ENR @ FS=3, ENR @ FS=6, and Gates @ FS=3.5, the results are all over the map. The gates formula seems to be more stable.
The ENR @ FS=3 and Gates seem to be correlate up to around 300 KN at lower energy ratings, and up to 600 KN and higher values. Can anyone give recommendation on when to not apply equations, i.e. (less the 400-500 KN) See attachments.
RE: Pile Driving Formulas