[提要]  简要介绍了桶形基础在抗拔承载力方面的研究现状，根据桶形基础应用地区的滩海地质情况制备模型试验地基基础。为了了解桶形基础在这一地区的抗拔承载力情况，对不同桶深的桶形基础进行抗拔承载力试验，分析桶形基础抗拔承载力的作用机理，同时，考虑了负压对抗拔承载力的影响，为桶形基础在这1地区的使用提供了1定的参考。
[关键词]  桶形基础  抗拔承载力  负压  模型试验

The study on pull-out bearing capacity of bucket foundation is introduced in brief,and the foundation used to model test is made according to the conditions in which the bucket foundation will be used. In order to find out the pull-out bearing capacity of bucket foundation in soils of offshore area, the study on pull-out bearcaning capacity of bucket foundation is made by using models with different depth, and the mechanism of pull-out bearing capacity is analyzed considering the effect of suction on pull-out bearing capacity. The results can be reference when the bucket foundation is used.
Keywords: bucket foundation; pull-out bearing capacity; suction; model test