ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Nonlinear Three Dimensional Analysis of Downdrag on Pile Groups

by Sangseom Jeong, (M.ASCE), Yonsei Univ, Seoul, Republic of Korea,
Jean-Louis Briaud, (F.ASCE), Yonsei Univ, Seoul, Republic of Korea,



Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments

Abstract:

The downdrag on pile groups was investigated by using a numerical analysis and an analytical study. The emphasis was on quantifying the reduction of downdrag on piles in a group due to the group effect. The case of a single pile and subsequently the response of groups is analyzed by using a three dimensional non-linear finite element approach. An approximate closed form solution is also developed for the case of the single pile. It is shown that the downdrag on piles in a group is much less than the downdrag on a single pile. Based on the results obtained, a simple method is proposed to design groups of 9 to 25 piles with spacing-to-diameter ratios varying from 2.5 to 5.0 for downdrag loads.

Subject Headings: Pile foundations | Three-dimensional analysis | Pile groups | Finite element method | Structural design | Piles | Numerical analysis

Services: Buy this book/Buy this article

 

Return to search