响水海上风电钢管桩基础水平承载特性对比研究  

COMPARATIVE STUDY ON HORIZONTAL BEARING CAPACITY OF STEEL PIPE PILE FOR XIANGSHUI OFFSHORE WIND FARM

作　　者：翟恩地 徐海滨[1,2] 郭胜山[1] 金华[1] 杜修力[2] Zhai Endi;Xu Haibin;Guo Shengshan;Jin Hua;Du Xiuli(China Three Gorges Corporation, Beijing 100038, China;The Key Laboratory of Urban Security and Disaster Engineering、 Ministry of Education , Beijing University of Technology , Beijing 100124, China)

机构地区：[1]中国长江三峡集团公司,北京100038 [2]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124

出　　处：《太阳能学报》2019年第3期681-686,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51421005;51322813)

摘　　要：结合江苏响水海上风电场2 m桩径钢管桩水平试验工程,以ANSYS有限元软件为平台建立海上风力机钢管桩的单桩基础模型,根据设计提供土层参数,采用API规范建议的p-y曲线法、港口工程桩基规范的m法和m折减法进行水平承载力计算,与实测的桩顶荷载-位移曲线、桩身变形和弯矩曲线进行对比分析,结果表明,API(American Petroleum Institute)规范建议的p-y曲线计算结果偏于安全,m法和m折减法偏于不安全,总体上m折减法与实测值更接近。上述几种分析方法的对比研究尚需更多的试验数据和计算分析工作。The in-situ tests on lateral monotonic loading are performed for offshore large diameter pipe piles which diameter is 2 m based on Xiangshui offshore wind farm. Monopile model is established by ANSYS,comparative analysis between the test results and API curve, m method and m correction method of code for pile foundation of harbor engineering are carried out basing the soil parameters from designer. It is shown that the results of API p-y curve method is conservative,the results of m method and m correction method are non conservative,but the results of m correction method is agreed with the tests. More tests data and computational analysis are needed for the comparative study of the above methods needs.

关 键 词：海上风电 承载特性 钢管桩 P-Y曲线 M法 

分 类 号：TU473.1[建筑科学—结构工程]