Published Online: 11 July 2011
Page Count: 9
Alshibli, Khalid A.
University of Tennessee,
Okeil, Ayman M.
Louisiana State University,
ExxonMobil, Upstream Research Company, Houston,
Pavement and Geotechnical Research Administrator,
(Received 19 January 2011; accepted 11 April 2011)
The cone penetration test (CPT) has been widely used in Louisiana to classify soils, measure undrained shear strength (Su), and identify bearing stratum for driven piles. This paper compares the values of Su based on CPT measurement with Su of the unconfined compression test. A total of 752 CPT soundings were collected and archived using ArcGIS software in which 503 were matched with adjacent boreholes and 249 did not have adjacent borehole data available. The dataset was analyzed for general as well as specific trends in order to identify appropriate parameters to be included in the investigation. The calibration of the CPT expression for Su was conducted using the first order reliability method (FORM) and accounting for all sources of uncertainty. Optimum CPT coefficient (
Paper ID: GTJ103771