00480993

Component

http://onlinepubs.trb.org...trr/1988/1169/1169-008.pdf

https://scholar.google.co...eney&publication_year=1988

In the past 20 years, extensive research and implementation efforts have been directed at improved construction control of driven piles. The feasibility of techniques such as wave equation analysis, quick load testing, and dynamic pile testing has been thoroughly evaluated and generally accepted by the engineering profession. The mechanics of the pile-driving operation have been studied with results confirming the importance of controlling the properties of pile driving appurtenances such as hammer cushion, drive head, pile cushion, followers, and so on. Finally, the elements of risk in bidding pile work have been learned through numerous court of claims cases on topics such as estimated lengths, fixed-cost items bid as variable costs, delays in furnishing proper equipment, or required pile lengths. Modernization of current specifications for construction control of driven piling requires philosophical as well as technical changes. Five areas of potential improvement that need to be addressed in detail are specifying ordered pile lengths, using ultimate pile capacity, approving driving equipment, field verifying pile capacity, and devising a pile payment method.

This paper appears in Transportation Research Record No. 1169, Geotechnical Instrumentation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

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p. 62-69

1988

Transportation Research Record

0309047056

Figures (1)

Construction management; Field tests; Length; Payment; Pile driving; Specifications; Support piles

Driven piles; Pile length

Bridges and other structures; Construction; Finance; Highways; Public Transportation; I53: Construction of Bridges and Retaining Walls

TRIS, TRB, ATRI

Mar 31 1989 12:00AM

• ANALYSIS OF LATERALLY LOADED PILES WITH NONLINEAR BENDING BEHAVIOR
• DEFORMATION MEASUREMENTS WITH INCLINOMETERS
• DILATOMETER EXPERIENCE IN WASHINGTON, D.C., AND VICINITY
• DISCUSSION OF PROCEDURES FOR THE DETERMINATION OF PILE CAPACITY
• GROUND VIBRATION MONITORING INSTRUMENTATION AND COMPUTERIZED SURVEILLANCE
• INSTRUMENTATION FOR TESTS OF PILES SUBJECTED TO AXIAL LOADING
• LTBASE: A COMPUTER PROGRAM FOR THE ANALYSIS OF LATERALLY LOADED PIERS INCLUDING BASE AND SLOPE EFFECTS
• NYSDOT'S CONSTRUCTION CONTROL OF PILE FOUNDATIONS WITH DYNAMIC PILE TESTING
• UNIFIED DESIGN OF PILES AND PILE GROUPS
• USE OF THE WAVE EQUATION BY THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION