东南大学学报（英文版）2023，Vol.39Issue(4)：384-392,9.DOI:10.3969/j.issn.1003-7985.2023.04.007
海上风电机组嵌岩桩与砂土桩承载力对比分析
Comparison analysis of the bearing capacity of rock-socketed piles and sand piles for offshore wind turbines
摘要
Abstract
The bearing capacity of rock-socketed piles(RSPs)and sand piles under horizontal loads was compared and analyzed through laboratory-scale model tests.The tests were conducted using phosphogypsum to simulate the underlying rock and compacted sand as the upper layer.Particle analysis tests were conducted prior to the tests to confirm soil uniformity.Cone penetration test(CPT)was performed to evaluate the soil,confirming similar soil conditions for all experimental groups,indicating that any errors arising from soil properties could be neglected.The bearing capacity of RSPs was verified through finite element simulation,the results of which closely matched those of the tests.The results show that the bending moment distribution of RSPs and sand piles is consistent,with their maximum bending moment occurring at a depth of 2-3 times the pile diameter(5 cm).However,the location of the maximum bending moment for RSPs is about 1 pile diameter(5 cm)deeper than that of the sand piles.When the upper layer of sand is shallow,the bearing effect of RSPs is more significant,with an increase in the bearing capacity of about 41％compared to sand piles.In addition,due to the squeezing effect of the rock,the cross-sectional deformation of the RSPs is significantly lower than that of the sand piles.关键词
海上风电/嵌岩桩/室内试验/承载力Key words
offshore wind power/rock-socketed pile(RSP)/laboratory test/bearing capacity分类
建筑与水利引用本文复制引用
张浦阳,熊粒超,乐丛欢,董宏季,丁红岩..海上风电机组嵌岩桩与砂土桩承载力对比分析[J].东南大学学报（英文版）,2023,39(4):384-392,9.基金项目
The National Natural Science Foundation of China(No.52171274). （No.52171274）
