Title page for ETD etd-62197-23325


Type of Document Master's Thesis
Author Helmers, Matthew Justin
Author's Email Address mhelmers@vt.edu
URN etd-62197-23325
Title Use of Ultimate Load Theories for Design of Drilled Shaft Sound Wall Foundations
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Brandon, Thomas L.
Filz, George M.
Duncan, James Michael Committee Chair
Keywords
  • Lateral Loads
  • Drilled Shafts
  • Field Load Tests
Date of Defense 1997-06-20
Availability unrestricted
Abstract
A study was performed to investigate the factors that affect the accuracy

of the procedures used by the Virginia Department of Transportation for

design of drilled shaft sound wall foundations. Field load tests were

performed on eight inch and nine inch diameter drilled shafts, and the

results were compared to theoretical solutions for ultimate lateral load

capacity. Standard Penetration Tests were run in the field and laboratory

strength tests were performed on the soils from the test sites. It was

found that published correlations between blow count and friction angle

for sands and gravels can be used to estimate friction angles for the

partly saturated silty and clayey soils encountered at the test sites.

A spreadsheet program was developed to automate the process of determining

design lengths for drilled shaft sound wall foundations. The spreadsheet

was used to investigate the effects of different analysis procedures and

parameter values on the design lengths of drilled shaft sound wall

foundation.

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