输电铁塔微型桩基础中桩-土共同作用研究

Research on Co-action of Pile and Soil in Minisize Pile Foundation of Transmission Tower

对微型桩基础中桩-土共同作用进行分析,且利用微型桩基础的特殊工艺采用二次注浆使桩与土能够紧紧的联系在一起。采用ABAQUS计算软件对4×4交叉倾斜群桩进行分析,计算没有设置接触时和设置接触时的桩在固定下压力下桩顶位移,并得出设置接触对实际应用时可以减少材料的浪费,说明桩-土的计算中考虑桩-土共同作用的合理性和正确性。

Based on research on co-action of pile and soil in minisize pile foundation of transmission tower, the pile is fixed tightly with soil using secondary injected hole and special technology. The motion of pile block under constant downward force is analyzed based on non setting contact and setting contact using ABAQUS on cross lean Group piles. The setting contact could reduce material in practical application.