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FIELD EXPERIENCE OF THE PIEZOBALL IN SOFT CLAY (2010)

This paper presents the results of a series of piezoball penetration and
dissipation tests carried out at two well characterized soft soil sites in Ireland.
Piezoball data are compared with piezocone data, in addition to other in situ and laboratory test results. Using the standard N factor of 10.5 resulted in an undrained shear strength profile which is in very good agreement with Tbar profiles from previous studies. Interestingly, results of dissipation tests show that dissipation around the piezoball is faster than around the cone, when the different diameters are accounted for.

Reference:
2nd International Symposium on Cone Penetration Testing, Huntington Beach, California, 2010
Organization:
Institute of Technology Sligo, Ireland
Ireland
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