Limitation of CPT wrt soil type
Limitation of CPT wrt soil type
(OP)
Hi,
Could anyone guide me on any published literature on the use of cpt in certain type of soils.
This question may be trivial to most of you; but any reference may be helpful.
Regards
Could anyone guide me on any published literature on the use of cpt in certain type of soils.
This question may be trivial to most of you; but any reference may be helpful.
Regards





RE: Limitation of CPT wrt soil type
As given in Donald P. Conduto’s book Geotechnical Engineering, Principles and Practices (1999, Prentice-Hall), Table 3.5, the cone penetration test is suitable for all soils other than gravels (and, by inference those materials larger than gravel sized). The table, developed fromJames K Mitchell (1978) “In-Situ Techniques for Site Characterization,” Site Characterization and Exploration, pp. 107-129, C.H. Dowding, Ed., ASCE, gives the following suitable soils for in-situ testing:
Standard Penetration Test: All except gravels
Cone Penetration Test: All except gravels
Pressuremeter Test: All
Dilatometer Test: All except gravels
Becker Penetration Test: Sands through boulders
As expected, most in-situ testing has troubles with coarse sizes (gravels and above). The notable exception is testing done by the Becker Hammer (developed in Canada).
Hope that this helps.
RE: Limitation of CPT wrt soil type
I will go though the references and update on this. I was more interested in sand gravel mixes; performance of CPTs in sands with different gravel compositions.
I hope someone has come across such literature.
Regards
RE: Limitation of CPT wrt soil type
Please see FAQ731-376 by VPL for tips on how to make the best use of Eng-Tips Fora.