Improvement for Determining the Axial Capacity of Drilled Shafts in Shale in Illinois

Stark, Timothy D.; Long, James H.; Assem, Pouyan

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https://hdl.handle.net/2142/45762 Copy

Description

Title

Improvement for Determining the Axial Capacity of Drilled Shafts in Shale in Illinois

Author(s)

• Stark, Timothy D.
• Long, James H.
• Assem, Pouyan

Issue Date

2013-05

Keyword(s)

Drilled shaft, weak IGMs, axial capacity rock, shale, side and tip resistance, predictive method, resistance factor, modified standard penetration test, penetration rate

Abstract

In this project, Illinois-specific design procedures were developed for drilled shafts founded in weak shale. In addition, recommendations for field and laboratory testing to characterize the in situ condition of weak shales in Illinois were developed and presented herein. For this project, weak shale is defined as an intermediate geologic material (IGM) with an unconfined compressive strength of 10 to 100 ksf. These investigation and design improvements are anticipated to lead to safer design and substantial deep-foundation cost savings for IDOT.

Series/Report Name or Number

FHWA-ICT-13-017

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/45762

Sponsor(s)/Grant Number(s)

Illinois Department of Transportation ICT R27-99 UILU-ENG-2013-2011

Copyright and License Information

No restrictions. This document is available to the public through the National Technical Information Service, Springfield, Virginia 22161

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