A new system of multiple dynamic strain sensors and accelerometers embedded in test piles provides direct synchronous measurement of force and acceleration at various locations within a pile during high strain dynamic pile testing. This instrumentation system creates an opportunity to explore side and end bearing pile resistance distribution with a higher level of confidence and reliability than from top measurements alone. Dynamic testing results using embedded transducers are presented for a 16-inch Auger Pressure Grouted Displacement (APGD) pile. The procedure is explained to estimate static side and end bearing components by matching force and/or acceleration data at the pile top and tip using the CAPWAP program. Static load and displacement characteristics at the pile top predicted by CAPWAP are compared to static pile load test results.
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