水平受荷大直径单桩的桩土作用分析

摘要

Large-diameter monopole is widely used as foundations foi offshore turbines. To resist the lateral loads from turbine blades, wings are installed on top of the pile. In this paper, a 3 -dimensional finite differential model is established to simulate the large-diameter steel tubular pile is established. Then laws of pile-soil interaction is discussed, considering the effect of wings. At last, a series of parametric studies are carried out to investigate the effect of wings, and some practical results and conclusions are achieved.%大直径单桩现广泛应用于近海风电基础中.为抵抗水平推力,采用在桩侧设置翼缘的办法.通过建立大直径薄壁钢管桩三维有限差分模型,对水平推力作用下的大直径单桩的桩-土作用进行分析,并考虑桩侧翼缘对桩-土相互作用规律的影响.最后对翼缘进行参数分析,得出一些对工程实际有益的结果.