Osterberg cell pile load test at Styx Mill overbridge (2002)
A bored pile constructed at the Styx Mill Bridge overpass, SH 1, in Christchurch, was load tested to determine axial compressive capacity. The testing technique involved using the Osterberg Load Cell, or O-cell. This im1ovative testing method is gaining widespread use worldwide because it provides a fast, effective, and economical means to conduct load tests on full-size deep foundations. The O-cell test at Styx Mill is the first in New Zealand and one of the objectives was to provide an opportunity for New Zealand engineers, contractors, owners, and other potential users of load test information to observe the test first-hand. The test was funded by Transit New Zealand and was conducted in conjunction with a workshop on bored pile design and construction organized by the authors at the University of Canterbury. Workshop attendees were on-site when the bored pile with the O-cell was installed, and were invited to attend the load test several days later. This rep01i describes the site conditions, provides a brief background on the Osterberg-cell concept, describes the test conditions, and summarizes the results. Comparisons are provided between pile capacities predicted by conventional methods and the O-cell test results.
ANZSRC Fields of Research40 - Engineering::4005 - Civil engineering::400509 - Structural dynamics
40 - Engineering::4005 - Civil engineering::400502 - Civil geotechnical engineering
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