Improved Design For Driven Piles On A Pile Load Test Program In Illinois

Long, Jim; Anderson, Andrew

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https://hdl.handle.net/2142/45809 Copy

Description

Title

Improved Design For Driven Piles On A Pile Load Test Program In Illinois

Author(s)

• Long, Jim
• Anderson, Andrew

Issue Date

2012-07

Keyword(s)

piles, driven piling, pile driving, pile setup, driving stresses, pile capacity, dynamic load test, pile driving formula, WEAP, PDA, CAPWAP

Abstract

Dynamic pile testing and one static load test was performed in accordance with ICT project R27-69, “Improved Design for Driven Piles Based on a Pile Load Test Program in Illinois.” The objectives of this project are to (1) increase the maximum nominal required bearing that designers can specify to reduce the number and/or weight of piles, (2) decrease the difference between estimated and driven pile lengths to reduce cutoffs and splice lengths by development of local bias factors for predictive methods used in design, (3) increase reliance of pile setup to increase the factored resistance available to designers, (4) reduce the risk of pile driving damage during construction, and (5) increase the resistance factor (decrease in factor of safety) based on increased data and confidence from load tests in and near Illinois. Project deliverables can be categorized as (1) better prediction methods for stresses during driving, (2) better prediction methods for pile capacities using resistance factors for driven piling based on local calibrations that consider the effects of pile setups, and (3) collections of static and dynamic load test data focused on Illinois soils and geology. 17. Key

Series/Report Name or Number

FHWA-ICT-12-011

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/45809

Sponsor(s)/Grant Number(s)

Illinois Department of Transportation ICT 27-69

Owning Collections