Jetting Techniques for Pile Installation and Environmental Impact Minimization

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Title: Jetting Techniques for Pile Installation and Environmental Impact Minimization
Author: Denton, Raymond Lynwood II
Advisors: Dr. M.S. Rahman, Committee Member
Dr. Mohammed A. Gabr, Committee Co-Chair
Dr. Roy H. Borden, Committee Co-Chair
Abstract: This research is the second part of a two-part research process to develop a pile jetting model which encompasses pile insertion, debris zone modeling, and particle transport. The first part of the research was composed of development of a comprehensive laboratory experimental program which provided insight into the effects of jetting parameters (i.e. water volume flowrate and jet nozzle velocity) on maximum pile insertion depth, pile insertion rate, volume of debris transported to the ground surface, and the extent of the debris zone area (installation characteristics). This research is composed of model development and verification of the laboratory model based on twenty six full-scale pile installations at four different test sites. Various pump configurations and soil profiles are investigated. Results of the field test program show that the proposed debris zone model based on the laboratory experimental program agrees well with the measured debris zone volumes generated at the field installations. A pile insertion model is developed and validated, the laboratory debris zone model is verified, and referenced particle transport equations from literature are presented. Recommended design procedures for using the jetted pile model are discussed.
Date: 2004-07-14
Degree: MS
Discipline: Civil Engineering
URI: http://www.lib.ncsu.edu/resolver/1840.16/438


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