岩土工程学报2016，Vol.38Issue(12)：2315-2321,7.DOI:10.11779/CJGE201612022
淤泥质黏土中复合筒型基础水平承载力试验研究
Model tests on bearing capacity of composite bucket foundation in clay
摘要
Abstract
As a newtype of offshore wind power foundation, the composite bucket foundation has large difference in structural form from the traditional bucket foundation, thus its ultimate bearing capacity and bucket-soil interaction mechanism need further research. Aiming at this problem, a large-size model for the composite bucket foundation is designed, and several horizontal bearing capacity tests are carried out in clay. The distribution of soil pressure, the motion mechanism and the ultimate bearing capacity of the composite bucket foundation are determined depending on the tests. The test results show that the soil pressure on the passive zone increases significantly with the increase of horizontal load, while the soil pressure on the active zone has negative growth atfirst and returns to the initial value finally.The position of theinstantaneous rotation center moves from the central axis to thebottom of the bulkhead at the loading direction with the increaseof horizontal load, andit’s approximately 0.8L below the ground surface around the bulkhead at the loading directionundertheultimate horizontal load.关键词
复合筒型基础/水平承载力/土压力/旋转中心Key words
composite bucket foundation/horizontalbearing capacity/soil pressure/rotation center分类
建筑与水利引用本文复制引用
刘永刚,丁红岩,张浦阳..淤泥质黏土中复合筒型基础水平承载力试验研究[J].岩土工程学报,2016,38(12):2315-2321,7.基金项目
国家自然科学基金项目（51379142）；天津市应用基础与前沿技术研究计划项目 （）
