Experiments in Expandable Tip Piling

by Thomas L. Adams, (M.ASCE), Exec. Vice Pres.; Charles M. Upham Int., Consulting Engrs., Bangkok, Thailand,
Fred C. Stepanich, (M.ASCE), Consulting Engr.; Kuala Lumpur, Malaysia,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1973, Vol. 99, Issue 11, Pg. 957-977

Document Type: Journal Paper

Discussion: Raghunath S. P. (See full record)


Significant economic savings can be realized if pile design loads can be increased to those of which the pile itself is capable of sustaining as a structural column. In friction pile conditions or uplift conditions a system is described whereby pile capacities are increased by expanding the pile cross section by extruding steel plates from the pile body after the pile is driven. Results of a laboratory model test and reduced scale prototype test are given and compared with a theoretical preliminary design procedure. A design example illustrates potential economy. An examination of the scheme's adaptability to various pile sections already in commercial use throughout the world emphasizes the versatility of the system.

Subject Headings: Steel piles | Driven piles | Model tests | Sustainable development | Steel plates | Economic factors

Services: Buy this book/Buy this article


Return to search