Method for calculating the soil resistance during offshore pile driving based on Fréchet distance
With the development of offshore platforms and offshore wind power,the accuracy of pile foundation drivability analysis,which is greatly impacted by soil resistance to driving(SRD),has attrac-ted more and more attention.In SRD analysis,the key is determining the reduction coefficients for end-bearing resistance and shaft resistance.Based on a database that includes 99 pile driving records from 11 offshore platforms,the applicability of the Fréchet distance algorithm in evaluating the similarity between pile driving records was verified,and the threshold of Fréchet distance in the sea area was deter-mined and verified.Then,the Fréchet distance between the calculated SRDs under different reduction coefficients and SRD from the back analysis of pile driving records was calculated,and the recommended values of reduction coefficient were proposed in the cases of soil plug and no soil plug.The results of this study could be helpful for the calculation of SRD in pile drivability analysis.
万方数据
维普
