N SEPT/OCT 2020 TIONS DA I DEEP FOUNDATIONS N DFI ITUTE ST EP FO U DE THE MAGAZINE OF THE DEEP FOUNDATIONS INSTITUTE ® 2020 Outstanding Project: Cast-in-Place Piles for Weak Soils Assessing Rock Socket Loading Rigid Inclusions Diaphragm Walls for Egyptian Tunnel Clearer Crosshole Sonic Logging Metrics