Analysis and Design of the Kingdom Tower Piled Raft Foundation

Alan Poeppel
Managing Principal
Langan Engineering, New York City



As part of the booming development in the Kingdom of Saudi Arabia, Langan international was hired to assist in all phases of soil investigation and foundation design for the Kingdom Tower. The objective of this presentation is to present the aspects of the site investigation; discuss the challenging geology of the site chosen for the Kingdom Tower; present the results from in-situ, laboratory, and full scale foundation testing; and address the sophisticated computer modeling. Emphasis is placed on geotechnical parameter selection, soil-structure modeling, and the interaction between structural and geotechnical engineers to achieve convergence between the foundation analysis results of the geotechnical and structural foundation models. The soil-foundation-structure-interaction analysis led to some surprising results that ultimately determined the final foundation design. Estimates for the pile loading, raft sharing, and foundation deflections are presented.

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