人民长江2018，Vol.49Issue(6)：96-101,6.DOI:10.16232/j.cnki.1001-4179.2018.06.018
竖向荷载下裙式吸力基础周围土体变形研究
Sandy soil deformation behavior around skirted suction caisson under vertical compression load
摘要
Abstract
Sandy soil deformation and foundation failure are studied by using model tests and the finite element method to ex-plore the behaviors of traditional suction foundation and skirted suction foundation in saturated fine marine sand under vertical monotonic loading. The effects of the skirt structure on sand deformation are discussed. The results show that the range of soil de-formation caused by traditional suction foundation is smaller than that of skirted suction caisson by 31% ~35%,which illustrates that the skirted suction caisson could make more soil to support the horizontal bearing capacity. The skirt width could increase the soil deformation,and the skirt height has a restraint function on the soil. Under the same skirt width, the soil deformation area decreases with increase of the skirt height. The failure modes of suction caissons in saturated sand are in accordance with Prandtl's whole shear failure.关键词
裙式吸力基础/竖向单调加载/饱和砂土/土体变形Key words
skirted suction caisson/vertical monotonic loading/saturated marine fine sand/soil deformation分类
天文与地球科学引用本文复制引用
刘学洋,张雨坤,李大勇..竖向荷载下裙式吸力基础周围土体变形研究[J].人民长江,2018,49(6):96-101,6.基金项目
国家自然科学基金资助项目(51379118) （51379118）
山东科技大学科研创新团队资助项目(2015TDJH104) （2015TDJH104）
