Centrifugal model tests on bucket foundation in clay for offshore wind turbine
WANG Ai-xia1, XING Zhan-qing2, 3, ZHANG Ga1, FU Ping2, 3
1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100038, China; 3. Beijing Water Hydropower Science and Technology Development Co., Ltd., Beijing 100038, China
Abstract：The bucket foundation is widely used in ocean engineering. Most of the ocean foundations are in saturated mucky soil, meanwhile, they suffer from the complex stress environment. A series of centrifugal model tests are conducted in the bucket foundation on the saturated mucky soil to simulate the prototype stress in the foundation. Based on the analysis of the typical tests, the stress and deformation and pore pressure characteristics of the foundation are introduced under cyclic horizontal loading conditions. The horizontal static and cyclic loadings are conducted on the foundation. If the total load exceeds the critical plastic one of the foundation, its deformation is negligible, or else the accumulated deformation formed by the long-term cyclic loading makes the bucket and the ground be apart, which will cause the loss of the suction and the dumping of the bucket foundation.
王爱霞, 邢占清, 张嘎, 符平. 海上风机筒型基础黏土地基离心模型试验研究[J]. 岩土工程学报, 2015, 37(zk1): 41-45.
WANG Ai-xia, XING Zhan-qing, ZHANG Ga, FU Ping. Centrifugal model tests on bucket foundation in clay for offshore wind turbine. Chinese J. Geot. Eng., 2015, 37(zk1): 41-45.
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