Publication Abstract

Proceedings of the 30th Annual Conference on Deep Foundations, 2005, Chicago, Illinois, USA, (DFI)

Analysis and Case Study for Minimizing Differential Settlements in Piled Raft Foundations
Yu Chuang, Liu Songyu, Zai Jinmin

The piled raft foundation is a geotechnical composite construction method, consisting of three elements, piles, raft and soils, which is applied for the foundation in an increasing in an increasing number. Differential settlements have numerous negative effects on a superstructure in pile raft foundations. Through the analysis of the production mechanism of differential settlements and differential settlements control measures, a method of adjusting pile configurations is presented to control differential settlements. By comparing the measured data and finite element method analysis of one oil storage pile raft foundation, the new method is verified that the differential settlements can be reduced effectively and the inner forces of foundations are more reasonable with varying length pile configurations. The differential settlements can be minimized or even reduced to zero with right pile length.

 article #1298; publication #72 (AM-2005)