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Construction Effects On The Side Shear Of Drilled Shafts, Lucas Caliari De Lima
Construction Effects On The Side Shear Of Drilled Shafts, Lucas Caliari De Lima
USF Tampa Graduate Theses and Dissertations
Design methods for side shear of drilled shafts, including the resistance factors that should be applied, do not account for any specific construction procedure. Instead, design often relies on analysis of case studies which include all construction methods used in each geomaterial type (e.g. clays, sands and rocks), or on parametric analysis. Nonetheless, literature suggests that different construction procedures result in varying side shear.
This research investigated 2 types of construction: (1) slurry stabilization in sandy soils using bentonite and polymer products that are commonly used on the field, with exposure times from near 0h to 96h, and (2) temporary …
Evaluating The Effect Of Temporary Casing On Drilled Shaft Rock Socket Capacity, Daniel J. Hagerman
Evaluating The Effect Of Temporary Casing On Drilled Shaft Rock Socket Capacity, Daniel J. Hagerman
USF Tampa Graduate Theses and Dissertations
The purpose of this study was to determine the effect on side shear resistance in limestone when temporary casing is used. Due to testing in actual limestone being an unrealistic goal, simulated limestone mixes were prepared and cast into 6 – 42 in. diameter beds. Limestone throughout Florida can be quite varied (e.g. 50-5000 psi) but where stronger limestone is not likely to be penetrated by casing installation. Therefore, target unconfined compressive strengths of the study specimens ranged between 60 psi to 850 psi.
A simulated limestone material was developed based on over 200 cylinders cast for unconfined compression testing …