Axial response analysis of single pile based on SCPTU test

摘要

Analysis of single pile response is important for engineering design. Seismic cone penetration pore pressure (SCPTU) test can provide four parameters along the depth, i.e., cone tip resistance (qt), wall friction (fs), pore pressure (u2), shear wave velocity (Vs). Using the parameters due to SCPTU, pile axial load- displacement- pile capacity can be obtained effectively. Using the data of CPTU penetration test, pile base resistance and skin friction can be predicted. Moreover, by means of shear wave velocity, the initial stiffness of pile, vertical displacement and axial load transfer were evaluated. Finally, tests of PHC piles embedded in the interactive marine and terrestrial deposit soil and silty clay validate the accuracy of the proposed method.