对于承受较大水平荷载的桩基工程应考虑竖向与水平荷载联合作用对桩基性状的影响。根据桩基可能承受的竖向-水平荷载联合作用情况,建立与原型具有相似规律的模型试验方案,研究桩基受竖向-水平荷载组合作用下的受力与变形特性。试验结果表明,竖向荷载对水平受荷桩的水平位移与桩身弯矩均有一定程度的不利影响,研究成果对实际工程具有参考价值。 For the pile foundation engineering with large horizontal load, the influence of the combined action of vertical and horizontal loads on pile foundation properties should be considered. According to the joint vertical and horizontal loads that pile foundation may bear, a model test scheme with similar rules to the prototype is established, and the mechanical and deformation characteristics of pile foundation subjected to vertical-horizontal load combination are studied. The test results show that the vertical load has a certain degree of adverse effect on the horizontal displacement of pile and bending moment of pile, and the research results have reference value for practical projects.