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原文传递 Design and Construction of Driven Pile Foundations: Lessons Learned on the Central Artery/Tunnel Project.

题名：	Design and Construction of Driven Pile Foundations: Lessons Learned on the Central Artery/Tunnel Project.
作者：	bradshaw, a. s. baxter, c. d. p.
关键词：	lessond learned, boston tunnel
摘要：	Five contracts from the Central Artery/Tunnel (CA/T) project in Boston, MA, were reviewed to document issues related to design and construction of driven pile foundations. Given the soft and compressible marine clays in the Boston area, driven pile foundations were selected to support specific structures, including retaining walls, abutments, roadway slabs, transition structures, and ramps. This report presents the results of a study to assess the lessons learned from pile driving on the CA/T. This study focused on an evaluation of static and dynamic load test data and a case study of significant movement of an adjacent building during pile driving. The load test results showed that the piles have more capacity than what they were designed for. At the site of significant movement of an adjacent building, installation of wick drains and preaugering to mitigate additional movement proved to be ineffective. Detailed settlement, inclinometer, and piezometer data are presented. / NOTE: Final rept. Jan-Aug 03. / Supplementary Notes: See also PB97-134407 and PB97-141311. Sponsored by Federal Highway Administration, McLean, VA. Office of Infrastructure Research and Development. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
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