Integrated Application of Low Strain Method and Numerical Simulation in Pile Foundation Testing
Against the backdrop of a research building project in a certain city,experimental simulations were conducted using ABAQUS software,and the simulated results were meticulously compared with actu-al detection outcomes.The primary objective was to validate the reliability of the optimized numerical model in pile foundation integrity testing and to provide waveform references for engineering assessments.The results indicate that the established numerical model for complete piles successfully simulated the speed-time domain waveform of the actual tests,with a regular and smooth waveform curve displaying dis-tinct incident waves and pile bottom reflection waves.The incident waves and pile bottom reflection waves were in the same direction,forming an evident complete pile reflection waveform.Additionally,the simula-ted wave velocity values differed by less than 1％ from the actual detection wave velocities,demonstrating a high level of consistency and affirming the applicability of the simulation method to real-world engineer-ing.Similarly,by establishing a numerical model for an engineering project's enlarged-diameter pile,the results showed a 5.9％ difference between the enlarged diameter position and the actual position.The re-flection waveforms were relatively smooth,featuring clear incident waves and pile bottom reflection waves, with distinct reflection signals at defect locations.It was observed that the incident waves and pile bottom reflection waves were in the same direction,while the reflection waves at the enlarged diameter defect lo-cation were in the opposite direction,enabling an overall assessment of defect types and locations based on the waveform.
万方数据
维普
