Optimization Design Study on Variable Stiffness of the Pile Raft Foundation in High-Rise Building

Abstract:

The finite element calculation results indicated: interaction of the superstructure-the pile raft foundation-foundation, the stress of the pile raft foundation appeared "disc type" distribution, namely, was big in the middle, and was small in the edge. Generation of differential settlement was due to the upper structure secondary stress and raft internal force. Through adjusting the foundation soil stiffness and pile length, pile diameter and pile distance, the influence of variable stiffness on differential settlement was analyzed. The results showed that changing the pile arrangement and adjusting the stiffness of foundation soil was optimal scheme of the pile raft foundation in high-rise building.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 2498-2502
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.2498
• Online since: May 2011
• Authors: Yong Le Li, Jiang Feng Wang, Qian Wang, Kun Yang
• Keywords: Differential Settlement, Finite Element, Pile-Raft Foundation, Stiffness

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