Prediction of end bearing for drilled shafts and suggestion for design guidelines of end bearing for drilled shaft in Florida limestone [electronic resource] /
ABSTRACT: This research is conducted as part of a project, Static and Dynamic Field Testing of Drilled Shafts, sponsored by the FDOT (Florida Department of Transportation). The main purpose of this thesis is to predict unit end bearing of drilled shafts using the O'Neill method employed as FDOT standard practice in Florida bridge sites. Predicted unit end bearing values were compared with measured unit end bearing values of the shafts obtained from the Osterberg Load Test. In the O'Neill method, many rock properties should be required, and the properties of compressibility of the rock (i.e., Young'06720113odulus, E and Unconfined compressive strength, qu) is acted for prediction of unit end bearing as an important factor. As the way of predicting end bearing for the shafts, the nearest boring method and mean method of all sites are used based on laboratory data of Florida limestone. These two methods are to consider rock properties data near shaft and all site.
School:University of Florida
School Location:USA - Florida
Source Type:Master's Thesis
Keywords:bearing design drilled end fs lrfd method oneill prediction shaft
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