Design and Load Testing of Large Diameter Open-Ended Driven Piles (2015) / Chapter Skim
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DESIGN AND LOAD TESTING OF LARGE DIAMETER OPEN-ENDED DRIVEN PILES As the design of bridge foundations has evolved to include issues of extreme event loadings (vessel collision, seismic event, liquefaction, scour, ice) , large diameter piling has become a more attractive option because of the significant strength, ductility, and durability of these piles.
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2 histories of comparative testing programs that provide information of interest relating to the behavior and testing of LDOEPs. The most important feature of LDOEPs affecting the behavior and understanding of these piles is the uncertainty related to the behavior of interior soil within the pile during installation and subsequent static loading by the permanent structure.
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3 The case histories demonstrate a varied use of LDOEPs for bridge projects, including steel pipe piles driven to bear on rock, long friction piles entirely in soil, and prestressed concrete cylinder piles for coastal structures where these piles allowed the use of pile bents and eliminated footings. Some of the case histories illustrate attempts to perform comparison tests with static, dynamic, and rapid load tests, reflecting a search for improved reliability in the design and testing of LDOEPs.
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