Determination of Bearing Capacity of Single Pile based on Seismic Piezocone Penetration Tests

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Cao, Quan^1 ; Gong, Shuhua^1 ; Li, Peigang^1 ; Wan, Heng^1 ; Cheng, Daolai^2

School of Railway Transportation, Shanghai Institute of Technology, Shanghai

201418, China^1

School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai

201418, China^2

关键词: Effective stress;    Excess pore water pressure;    In-situ test;    One dimensional consolidation;    Seismic piezocone penetration tests;    Single piles;    Time effect of shaft bearing capacities;    Ultimate bearing capacity of single pile;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/3/032097/pdf
DOI  :  10.1088/1757-899X/394/3/032097

来源: IOP

【 摘 要 】

Based on the similar characteristics of installation about the penetrometer of seismic piezocone penetration tests(SCPTu) and the single pile, a theoretical relationship between ultimate bearing capacity of single pile, time-effect of shaft bearing capacity of single pile, excess pore water pressure around the pile during pile driven and the data measured from SCPTu is developed according to the cavity expanded theory, the Terzaghi one-dimensional consolidation theory and effective stress theory. The result of field test in KunShan and the calculated result which used the theoretical relationship mentioned above are compared. The results indicate that the analytical solutions agree well with the in-situ tests, which show that the applications of seismic piezocone penetration tests have wide range in the design of pile foundation.