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Title:

Development of New Pile-Driving Formula and Its Calibration for Load and Resistance Factor Design
Cover of Development of New Pile-Driving Formula and Its Calibration for Load and Resistance Factor Design

Accession Number:

01044099

Record Type:

Component

Availability:

Transportation Research Board Business Office

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Washington, DC 20001 USA
Order URL: http://www.trb.org/Main/Public/Blurbs/159491.aspx

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Order URL: http://worldcat.org/isbn/9780309104302

Abstract:

Before 1997, the Washington State Department of Transportation (WSDOT) used the "Engineering News" (EN) formula for driving piling to design capacity. WSDOT-sponsored research published in 1988 had shown that the EN formula was quite inaccurate and that adopting the Gates formula would be a substantial improvement. In 1996, an in-house study was initiated to identify or develop a new driving formula to be used for routine pile-driving acceptance in the WSDOT standard specifications. Recently, compiled databases of pile load test results were used as the basis for developing improvements to the Gates formula to improve the prediction accuracy of pile-bearing resistance. From this empirical analysis, the WSDOT driving formula was derived. Once the WSDOT driving formula had been developed, the empirical data used for its development were also used to establish statistics that could be used in reliability analyses to determine resistance factors for load and resistance factor design. The Monte Carlo method was used to perform the reliability analyses. Other methods of pile resistance prediction were analyzed, and resistance factors were developed for those methods. Of the driving formulas evaluated, calibration of the WSDOT formula produced the most efficient result, and a resistance factor of 0.55 was recommended. Dynamic measurement during pile driving using the pile-driving analyzer, combined with signal matching analysis (e.g., Case Analysis Pile Wave Analysis Program), produced the most efficient result of all the pile resistance prediction methods.

Monograph Title:

Soil Mechanics 2007

Monograph Accession #:

01082340

Language:

English

Authors:

Allen, Tony M

Pagination:

pp 20-27

Publication Date:

2007

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2004
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309104302

Media Type:

Print

Features:

Figures (5) ; References (16) ; Tables (5)

Geographic Terms:

Subject Areas:

Bridges and other structures; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics

Files:

PRP, TRIS, TRB

Created Date:

Feb 8 2007 4:55PM

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