Study on Resistance Partial Coefficients of Piles

According to the statistics of resistance in 78 bored piles and 128 drilled piles, the resistance partial coefficients of the bored piles and drilled piles are studied using calibration method. Results show that the partial coefficient of the main resistance is affected greatly by its distribution type. The partial coefficients of resistance obtained by recurrence analysis method have clear physical concepts. The calculation method is reasonable and the obtained results are credible.