University of Illinois Urbana-Champaign

Evaluating the Accuracy and Use of Drilled Shaft Integrity Testing Methods in Illinois

Stark, Timothy; Idries, Abedalqader; Osouli, Abdolreza

Content Files
FHWA-ICT-22-014.pdf

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https://hdl.handle.net/2142/114908

Description

Title
Evaluating the Accuracy and Use of Drilled Shaft Integrity Testing Methods in Illinois
Author(s)
  • Stark, Timothy
  • Idries, Abedalqader
  • Osouli, Abdolreza
Issue Date
2022-10
Keyword(s)
  • Drilled Shaft
  • Nondestructive Integrity Testing
  • Thermal Integrity Profile
  • Crosshole Sonic Logging
  • Shaft Quantitative Inspection Device
  • Shaft Area Profile Evaluator
  • Decision Flowchart
  • End Bearing
  • Side Resistance
Abstract
In this project, thermal integrity profile (TIP) and crosshole sonic logging (CSL) tests were performed on three test drilled shafts in three locations in Illinois to determine which technology is more effective at identifying installed defects in drilled shafts. TIP testing was found to be more effective than CSL in identifying installed defects outside the rebar cage. Conversely, CSL was found to be better than TIP at identifying installed defects at the bottom of the drilled shaft. A comprehensive cost analysis for TIP and CSL testing was performed using data from historical Illinois projects. The cost analysis showed that the costs of TIP and CSL testing were comparable. The findings of this research resulted in the creation of a decision flowchart that can be used to assist in the selection of nondestructive testing technology for drilled shafts in Illinois. Based on the project results, Illinois Department of Transportation’s TIP and CSL specifications and construction inspector’s checklist were modified to improve use of these tests.
Publisher
Illinois Center for Transportation/Illinois Department of Transportation
Series/Report Name or Number
FHWA-ICT-22-014
Type of Resource
text
Genre of Resource
technical report
Language
en
Handle URL
https://hdl.handle.net/2142/114908
Sponsor(s)/Grant Number(s)
IDOT-R27-188
Copyright and License Information
No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.

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