利用文克尔地基模型、桩间土横向抗力折减系数及平面有限元法建立了能够反映桩—土—承台共同工作的力学模型，研究了桩距径比、桩顶约束条件及地基侧向刚度对水平荷载在各桩间分配的影响，探索了合理分析水平荷载下群桩工作性状的数值分析方法 The mechanical model that can reflect the joint work of pile-soil-cap pile is established by using the Winkler foundation model, the transverse resistance reduction coefficient of the soil between the piles and the plane finite element method. The pile diameter-to-diameter ratio, pile top constraint conditions, The influence of stiffness on the distribution of horizontal loads among piles was explored, and the numerical analysis method of rational analysis of working behaviors of pile groups under horizontal load was explored