为研究黏性土土层含水率对混凝土扩盘桩抗拔性能的影响,通过模型试验,研究不同含水率情况下,混凝土扩盘桩抗拔承载力及土体破坏状态的变化情况,利用ANSYS有限元软件进行模拟分析,并对分析结果进行比较。结果表明:黏性土层含水率对桩的抗拔承载力有较大的影响,承载力随含水率的提高而降低。 In order to study the influence of moisture content of cohesive soil layer on the pull-out performance of concrete-filled pile, the change of anti-pull-bearing capacity and soil failure state of expanded pile under different water content were studied by model test. Finite element software simulation analysis, and the analysis results were compared. The results show that the moisture content of cohesive soil has a great influence on the anti-pull bearing capacity of pile, and the bearing capacity decreases with the increase of water cut.