This paper presents the experimental data collected in an attempt to directly measure the soil-pile interaction for fully-instrumented passive pile. The fully-instrumented pile was installed in loose well-graded sand and was subjected to lateral soil movement. A precast concrete pile, with a 101.6 mm diameter and 1.581 m long, was reinforced with one No. 4 rebar (diameter = 12.7 mm) located at the center of the pile cross-section. The pile was installed in soil using a stacked soil box configuration. To subject the pile to a lateral soil movement, the top soil box was pushed laterally relative to the bottom soil box. Advanced sensors including tactile pressure sensors wrapped around the pile and a flexible shape acceleration array placed along the length of the pile were used to directly measure the soil-pile interaction pressure and the lateral movement along the length of the pile. Instrumentation also included strain gauges placed on the length of the rebar in the pile, a load cell on the top box, displacement and tilt gauges at the top of the pile. A digital image correlation system was used to monitor the displacement of the soil surface, the soil box and the top of the pile during the test. The paper also describes the details of the test setup and instrumentation, installation procedure, and soil properties. The test results indicate that using the digital image correlation system in combination with other instrumentation, especially the sheet pressure sensors,provide the data to improve the understanding of interaction between the moving soil and the pile with increasing load.
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