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CASE HISTORY, MULTIPLE AXIAL STATNAMIC TESTS ON A DRILLED SHAFT EMBEDDED IN SHALE (2006)
As was the case on this project, the uncertainty of foundation performance in shale can lead to overly conservative designs, particularly with drilled shaft foundations. An extensive Statnamic axial testing program was performed to verify that the load-settlement behavior of the drilled shafts would be acceptable for the intended railroad traffic. Axial Statnamic testing was applied in three increasing cycles of 927 kips, 1007 kips, and 3177 kips, respectively. The maximum movements recorded at the shaft head during each of the loadings were 0.052 inches, 0.062 inches, and 0.257 inches, respectively.
Reference:
Deep Foundations Institute 31st Annual Conference, October 4-6, 2006, Washington, D.C.
Deep Foundations Institute 31st Annual Conference, October 4-6, 2006, Washington, D.C.
Organization:
United States Army Corps of Engineers
USA
United States Army Corps of Engineers
USA
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