Head Boundary Conditions 13% 5% 25% 82% 65% Pile Material 10% Free Hinged Fixed Reinforced Concrete Steel Steel with grout fill Soil Type 19% 9% 4% 42% 26% 54% 46% Pile Installation Techniques Clay Sand Silt Silts & Clays Various Rock Deposit Some of the information (e.g., soil profiles, data from in-situ investigations, load-deflection curves and p-y curves) is also downloadable as Excel and TIFF files. The data files and figures have either been provided by the authors of the load test or digitized by the project team. A future extension of the database may include centrifuge tests, model tests and analytical studies. Goals and Future Growth The ultimate goal is to provide and maintain a complete and centralized storage of information, supported by DFI and ADSC, which has not yet been available to the public. A continuous litera- ture review and upkeep of the online platform is part of Lemnitzer’s research commitment to DFI and ADSC over the next 5 years. In its current state, the database consists of 50 load test records from various parts of the world, with the majority of the information retrieved from sites located in the U.S. The predominant soil type observed in the literature and stored in the database is cohesionless soils (42%) followed by cohesive soils (26%). Soils with strongly varying strata were considered separately, e.g., tests in soils with rock strata (19%), silt and clay deposits (9%) and silt (4%). The majority of the tests have been performed on concrete piles (65%), while the remaining tests were performed on steel pipe piles (25%) and steel pipe piles with grout fill (10%). Approximately 82% of the tests are free head piles, 13% fixed head piles and 5% hinged piles. 98 • DEEP FOUNDATIONS • JULY/AUG 2015 Driven Drilled The potential growth of FindAPile.com correlates to the amount of load test data collected. The project team is strongly interested in expanding the database to a wider range of pile types and geotechnical conditions. Therefore, continuous storage of quality data would enable FindAPile.com to enhance and extend its purpose to more advanced applications. The team invites engineers and researchers, who have worked on full-scale laterally loaded piles and empirically derived p-y curves, or are aware of relevant studies, to contact the project team. Sensitive data can be labeled as anonymous records. Please send your recommendations to Professor Anne Lemnitzer at [email protected] or Camilla Favaretti at [email protected]. Acknowledgements Financial support for this project was provided by the DFI Committee Project Fund through the Seismic and Lateral Loads Committee and the Drilled Shaft Committee. Additional assistance was provided by the International Association of Foundation Drilling (ADSC), which is gratefully acknowledged. The project team would also like to acknowledge the support and valuable assistance of Mark Berggren, FindAPile.com’s web designer. Finally, our thanks go to the many researchers who generously shared their data.
