A semi-analytical method for the analysis of pile-supported embankments

• Published in: Journal of Zhejiang University. A. Science Vol. 13; no. 11; pp. 888 - 894
• Main Authors: Zhou, Wan-huan, Chen, Ren-peng, Zhao, Lin-shuang, Xu, Zheng-zhong, Chen, Yun-min
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Zhejiang University Press 01.11.2012
• Subjects: Civil Engineering; Classical and Continuum Physics; Consolidation; Embankments; Engineering; Foundations; Industrial Chemistry/Chemical Engineering; Mathematical analysis; Mathematical models; Mechanical Engineering; Piles; Settlements; Soil (material); 一维固结理论; 不均匀沉降; 半解析法; 地基土; 堤防; 模型描述; 端承桩; 饱和土; Equal settlement plane; Pile-supported embankment; TU4; Soft soils; Soil arching; Load transfer
• ISSN: 1673-565X; 1862-1775
• DOI: 10.1631/jzus.A12ISGT4

In this paper,a semi-analytical method for the analysis of pile-supported embankments is proposed.The mathematic model describes the cooperative behavior of pile,pile cap,foundation soil,and embankment fills.Based on Terzaghi＇s 1D consolidation theory of saturated soil,the consolidation of foundation soil is calculated.The embankments with two different types of piles：floating piles and end-bearing piles are investigated and discussed.The results of axial force and skin friction distributions along the pile and the settlements of pile-supported embankments are presented.It is found that it takes a longer time for soil consolidation in the embankment with floating piles,compared with the case using end-bearing piles.The differential settlement between the pile and surrounding soil at the pile top is larger for the embankment with end-bearing piles,compared with the case of floating piles.