Response Analysis of Concrete Piles Subjected to Lateral Impact

Wang, Helsin; Chang, Ta‐Peng; Wang, Jinjun

doi:10.51400/2709-6998.1943

Cited by 7 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e sensors are placed by drilling a hole in the soil, but the complexity of layered soil may complicate the detection. Using a lateral horizontal impact has been suggested as a more feasible approach for assessing pile foundations of superstructures [24,25]. Although PS tests have been used to determine the length and integrity of piles using the rst arrival time and waveforms [19,26], this method is limited by complex soil parameters, and a borehole must be drilled to place the sensors.…”

Section: Introductionmentioning

confidence: 99%

Integrity Testing of a Platform‐Pile System Using a Sensor Array and Wavenumber Domain Analysis

Lin

2022

Advances in Civil Engineering

View full text Add to dashboard Cite

Appropriate impact and sensor locations must be chosen in pile integrity tests to prevent three-dimensional effects caused by the torsional and flexural modes. The three-dimensional characteristics cause high-frequency interference, especially in bridge and wharf piles. A method is required to minimize the high-frequency interference without reducing the accuracy of the pile integrity test. A multivelocity integrity test method is proposed based on a sensor array and frequency-wavenumber (FK) domain analysis to eliminate high-frequency interference and reduce the errors in the output of integrity tests of platform-pile systems. FK filtering is performed to eliminate the spatial alias frequency and separate the upward and downward wavefield and the vibration modes in an integrity test of a platform-pile system. The optimum sensor location to minimize the influence of interference signals is at the bending plane relative to the impact location. Using a sensor array reduces the influence of the sensor location on the test results and minimizes the requirements for determining the location of the excitation point and sensors in the traditional low-strain integrity testing (LST) method, thereby improving the applicability of this method.

show abstract