Design and Load Testing of Large Diameter Open-Ended Driven Piles (2015) / Chapter Skim
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Pages 32-36
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33 chapter four PRIVATE-SECTOR PERSPECTIVES ON LARgE DIAmETER OPEN-ENDED PILES This chapter outlines some of the perspectives of several private-sector individuals on the design, installation, and testing of LDOEPs. The information discussed is based primarily on interviews.
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34 is actually somewhere in between. Specifically, how plugging affects driving is not just a function of the soil, but is related to pile diameter and hammer selection.
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35 • The durability of the pile during driving. High required nominal pile resistance can lead to aggressive driving and an increasing risk of pile damage.
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36 cautions that care be exercised when estimating the mobilized end bearing for drivability analysis. One major issue in practice noted by Holloway is the use of different methods for estimating the base and side resistance.
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37 RESEARCH NEEDS IDENTIFIED BY PRIVATE SECTOR Areas that were identified by the practitioners as needing additional research and investigation included: • Comparing dynamic and static load tests to better correlate dynamic testing and wave equation analyses with static resistance. • Defining the pile movement corresponding to the selected pile load test capacity for the LDOEP static load tests.
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