Abstract:
Grouting steel shafts is a widely used method for corrosion and buckling resistance on relatively slender helical pile shafts. Grouted displacement piles use a grouted shaft to create a friction pile. Our presentation will explore the use of gravity grouted helical and displacement piles in relatively deep soil conditions. We will explain the general methods of using gravity grouted piles, along with the design considerations and what conditions are most effective. We will then demonstrate a few case study examples where gravity grout was used in applications approximately 100’ deep. The design details will be presented along with pile capacity calculations. We will then review the site conditions, access constraints, and other items that impacted installation methods.