Yellow River sand and loess were taken as pile-side soil to study the interaction of pile-soil with laboratory tests. The acceleration digital signals at the top of pile were received using a WaveRunner 44Xi oscilloscope. The reverberation-ray matrix method was applied to invert damping and stiffness coefficients of pile-side soil under different compacting conditions. The test results showed that the denser the soil, the larger the damping coefficients and stiffness ones; damping coefficients grow faster when soil is looser, but two coefficients’ growth is nearly equal when soil is denser.
Key words
pile-soil interaction /
damping coefficient /
stiffness coefficient /
laboratory test /
reverberation-ray matrix method
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