Abstract: A foundation type selection comparison was performed during the design for the main structure of a commercial complex. Various factors, such as, structural loading distribution, structural story arrangement, subsurface soil stratigraphy, and physical and mechanical properties of subsurface soils, constructability of different pile types and their cost, are compared. The optimized foundation type, which meets the axial bearing capacity and also is the most cost effective solution, is selected.

Key words: Prefabricated Pre-stressed Pipe Piles, Bored and Cast-in-Place Piles, Composition Ground, Cost Comparisons, Design Approaches