It is found from the analysis under special situation that the large axialload had obvious effect on dynamic interaction factor of group pile.
通过分析表明，在轴向力作用较大的情况下，动力相互作用因子的影响较为明显。
2
To obtain a fixed set with the basic rating life of the corresponding radial axial dynamic load, or the basic dynamic load rating for equivalent dynamic load correction factor.
为了得到与给定额定寿命相应的基本额定径向动负荷或基本额定轴向动负荷，适用于当量动负荷的修正系数。
3
From the analysis of the experiment results, it is indicated that the axialload ratio on behaviors of CFST subjected to compression-bending loads is the most significant effect factor.