Standard penetration test and N values
Standard penetration test and N values
(OP)
Is there any reference or book that list all the correlations between N (standard penetration number )and poisson's ratio,modulus of elasticity,friction angle?
Thanks
Thanks





RE: Standard penetration test and N values
I believe that Bowles has many tables of empirical relations for these properties. Unfortunately, the Standard Penetration Test is anything but standard in pratice, due to the difference in energy imparted by the apparatus (for many reasons) by different hammers and drill crews. Additionally, hammers have become more efficient since the rope and cathead days, making correlations between historical data and modern investigations problematic.
Jeff
Jeffrey T. Donville, PE
TTL Associates, Inc.
www.ttlassoc.com
The views or opinions expressed by me are my own and do not necessarily reflect the views or opinions of my employer.
RE: Standard penetration test and N values
RE: Standard penetration test and N values
The manual is Number FHWA-HI-97-021
Subsurface Exploration Training Course in Geotechnical and Foundation Engineering: Subsurface Investigations - Participants Manual
You can find it here:
www.fh
RE: Standard penetration test and N values
The standard penetration value was intended to be an index value of strength and density. It was never intended to be the ultimate design parameter. Move on to some tests that actually measure strength or density.
jim