Elasto-Plastic Design of Piled Raft Foundation

Abstract:

When the loading sustained by the foundation is large, employing piled raft foundation is one of the best solutions. In the elasto-plastic design of piled raft, piles could improve the differential settlement and reduce raft thickness. As the raft sustains high earth and water pressures, by reducing the span length of raft and excavation depth, one can get economic design. Using elasto-plastic property of the pile is a better method to avoid increasing the pile length and pile diameter and making full capacity of the piled raft foundation in design compared to normal piled raft. With adoption of few small diameter piles, the raft thickness could be reduced significantly. This makes it much better than raft foundation.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 588-591
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.588
• Online since: January 2012
• Authors: Ai Hong Han, Hui Jun Zheng
• Keywords: Elastic Support, Elasto-Plastic, Piled Raft Foundation, Soil-Structure Interaction (SSI)

References

[1] E. C. Hambly. Bridge Deck Behaviour[M]. John Wiley, New York.

[2] International society of soil mechanics and geotechnical engineering. Methods of Analysis of Piled Raft Foundations. A report prepared on behalf of technical committee TC18 on piled foundations.

[3] Land Transportation Authority of Singapore. Civil Design Criteria for road and rail transit systems.