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首页> 外文期刊>Ocean Engineering >Response of flexible monopile in marine clay under cyclic lateral load
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Response of flexible monopile in marine clay under cyclic lateral load

机译：循环荷载作用下海洋黏土中柔性单桩的响应

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摘要

While monopile foundation is widely used at sandy site in Europe, it is designed and constructed in intertidal zone used only in China so far. Comparing with sandy site, intertidal site typically has different geological and environmental conditions due to upper layer consisting of soft marine day and daily tide movement, which may lead to considerable difference in long-term behavior of monopile. In order to investigate the cyclic lateral behavior of monopile constructed in intertidal zone, several scaled model tests were conducted. The scaled monopile-soil system contained in-situ soil from intertidal zone was tested with a new designed loading device under static and cyclic lateral load. Behavior of monopile-soil system was obtained and analyzed, which includes assessment of cyclic deformation at pile-head, estimation of static and cyclic p-y curves, dissipation behavior of pore water pressure, evaluation of gapping effect and soil softening zone. Discussion and suggestion for available design are proposed based on the analysis work of test results.
机译：虽然单桩基础在欧洲的沙地中得到了广泛的使用，但它是在迄今为止仅在中国使用的潮间带设计和建造的。与沙质地点相比，潮间带地点通常具有不同的地质和环境条件，这是由于上层由柔软的海洋日活动和每日潮汐运动组成，这可能导致单桩的长期行为存在相当大的差异。为了研究潮间带构造的单桩的循环侧向行为，进行了几个比例模型测试。使用新设计的加载装置，在静态和循环侧向荷载下，对潮间带原位土壤中的比例化单桩土系统进行了测试。获得并分析了单桩-土壤体系的行为，包括评估桩头处的循环变形，估算静态和周期性p-y曲线，孔隙水压力的耗散行为，评估孔隙效应和土壤软化区。根据测试结果的分析工作，提出了可用设计的讨论和建议。

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  • 来源
    《Ocean Engineering》 |2018年第1期|89-106|共18页
  • 作者

    Liao Weiming; Zhang Jianjing; Wu Jinbiao; Yan Kongming;

  • 作者单位

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Sch Civil Engn, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Intertidal wind turbine; Monopile; Cyclic p-y curve; Stiffness degradation; Gap formation;

    机译：潮间型风力发电机;单向;循环p-y曲线;刚度降低;间隙形成;

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