Nonlinear three dimensional analysis of downdrag on pile groups /.

Bibliographic Details
Main Author:	Jeong, Sangseom, 1960-
Other Authors:	Little, Dallas N. (degree committee member.), Morris, Derek V. (degree committee member.), Palazzolo, Alan B. (degree committee member.)
Format:	Thesis Book
Language:	English
Published:	1992.
Subjects:	Piling (Civil engineering) Soil mechanics. Major civil engineering. Academic theses.
Online Access:	Link to OAKTrust copy ProQuest, Abstract

Description
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. A closed form solution is also developped 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.
Item Description:	"Major subject: Civil Engineering." Typescript (photocopy). Vita.
Physical Description:	xii, 165 leaves : illustrations ; 29 cm
Bibliography:	Includes bibliographical references.