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Performance Of Pressure Grouted Helical Piles Under Monotonic Axial And Lateral Loading, Mohamed A. Mansour

Electronic Thesis and Dissertation Repository

The pressure grouted helical pile (PGHP) is an innovative pile foundation system that allows a significant increase in the helical pile capacity with some additional cost. The pile is constructed by applying pressurized grout during the installation of a closed ended helical pile through two grout nozzles welded to the hollow pile shaft. Torquing PGHP into the ground allows the grout nozzles to create a cavity around the pile shaft. The cavity then expands under the effect of pressurized grout and helix rotation. This thesis presents a comprehensive laboratory study and three-dimensional finite element analysis to investigate the effects of …