Experimental Study of the Rotary Filling Piles with Large-Diameter under the Axial Load

Abstract:

Based on the experimental study of rotary filling piles with large diameter subjected to axial load in deep soft soil, the bearing capacity behavior and load transfer mechanism were discussed. Results show that in deep soft soil foundation, the super–long piles behave as end-bearing frictional piles. The exertion of the shaft resistance is not synchronized. The upper layer of soil is exerted prior to the lower part of soil. Meanwhile, the exertion of shaft resistance is prior to the tip resistance. For the different soil and the different depth of the same layer of soil, shaft resistance is different.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 527-531
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.527
• Online since: November 2012
• Authors: Wan Qing Zhou, Shun Pei Ouyang
• Keywords: Axial Load, Experimental Study, Filling Pile, Soft Soil, Super-Long Pile

References

[1] Cao Hanzhi. The Axial Load Transferring of Piles and Numerical Calculating Method for Load-settlement Curve. Chinese Journal of Geotechnical Engineering, 8(6) (1986):37-48 (in Chinese)

[2] Yang Jibao. Research on Load Transfer Mechanism of Super-long Pile. Chinese Journal of Geotechnical Engineer, 20(6) (1998), 108-112 ( in Chinese)

[3] Cai jian. Experimental Study on the Axial Compress Behavior of Super-long PHC Pipe Piles in Deep Soft Soil. China civil engineering journal, 2006(10) :102-107 ( in Chinese)

[4] Zhou Xinjun. Theoretical and Experimental Study on the Vertical Bearing Behavior of Super-long Filling Piles in Soft Soil Area. GeoHunan international Conference 2009, 145-151

DOI: 10.1061/41044(351)23