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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/71244

    Title: 砂土中模型基樁之單向反覆側向載重試驗;Cyclic Lateral Loading Tests on Model Pile in Sand
    Authors: 陳冠羽;Chen,Kuan-Yu
    Contributors: 土木工程學系
    Keywords: 模型樁;側向載重;p-y曲線;單向反覆側向載重;水平地盤反力係數;model pile;lateral loads;p-y curve;one-way cyclic lateral loading
    Date: 2016-08-30
    Issue Date: 2016-10-13 12:14:56 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 風力發電為發展再生能源的重點,而台灣之離岸風力發電機基礎必須抵抗海浪、地震、颱風等自然力量。本研究主要係為模擬風力與波浪之長期作用力等所產生的疲勞效應,探討單樁基礎承受長期反覆側推力作用之承載行為。研究使用聚丙烯製模型樁,來模擬柔性樁受側向載重之反應行為,並採用一回歸分析模式來分析基樁非線性變形行為。
    ;Offshore wind turbines have been one significant piece of development of renewable energy. The pile foundation of offshore wind turbines in Taiwan must resist the influences of waves, earthquakes, typhoons, and other natural forces.The research simulates fatigue effect caused by long-term lateral loads, which is developed from wind and wave, and this also investigates the loading behavior of pile foundation that carries long-term cyclic lateral loads.The research uses model pile made of polypropylene to simulate the response of flexible pile subject to lateral loading. The study applies regression analysis model to examine the nonlinear response of pile foundation.

    In this research, it demonstrates designs of instruments and plans series of experiments to discuss the behavior of piles subject to lateral loading. This study will use Chunan sand to prepare the model ground by a mobile pluviator. Two sets of static ultimate lateral pile load tests will be carried out first in the model grounds with two kinds of relative densities. According to static ultimate lateral pile load tests to determine the loading amplitude of one-way cyclic lateral pile load tests. Eight sets of one-way cyclic lateral pile load tests will be performed by considering different densities and stress levels of long-term cyclic loads, to obtain permanent displacement and pile stiffness of pile foundation under long-term cyclic lateral loading.This research derives subgrade reaction coefficient of pile-soil system from static p-y curve, and comprehend the influence of subgrade reaction coefficient under cyclic lateral loading from dynamic p-y curve. Lastly, research offers the comparison of p-y curves between the test result and API and Reese.
    Appears in Collections:[土木工程研究所] 博碩士論文

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