Following up this (somewhat old) query of yours:
If you haven't seen it I suggest that you have a look at the paper
"Soil Resistance Predictions from Pile Dynamics", by Rauche, Moses and
Goble, Journal of SM&FE, ASCE,SM9, pp917-937, Sept 1972.
In particular the section on pages 933-935 entitled 'Statistical
Investigation on Bearing Capacity Predictions'.
Nine different capacity prediction methods are investigated including
the Hiley formula.
Regards
Charles H Price
On Mon, 13 Jul 1998 13:04:59 +400 DST, you wrote:
>Dear colleages,
> To evaluate pile capacity while driving,I have measured the elastic
>compression of pile and soil beneath it to apply them in the most
>reliable dynamic formula,i.e.HILEY formula.Considering some allowances
>for hammer efficiency,coefitient of restitution & elastic compression
>of pilecap etc, field measured data of pile rebound & pile set are fed
>to the formula and the calculated pile capacity is compared with the
>results obtained from load tests.
> I would appreciate to recieve any information about using dynamic
>formulae especially HILEY formula for pile capacity estimation or any
>experience you have made in this field.
>
>
>Best regards,
>Farhad Yahyazade
>
>Researcher: Tehran University
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