淡江大學機構典藏:Item 987654321/103553
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/103553


    Title: 軟弱粘土中層狀加勁礫石樁承載試驗
    Authors: 洪勇善
    Keywords: 軟弱粘土、層狀加勁、地工合成材、模型試驗、礫石樁
    Date: 2015-09-02
    Issue Date: 2015-08-24 16:38:16 (UTC+8)
    Publisher: 中華民國大地工程學會
    Abstract: 基礎工程中現地土壤過於軟弱無法提供足夠的承載力時,以礫石樁工法進行土壤改良是可行且經濟的方法。礫石樁雖可承受軸力與剪力,但於近地表處由於側向圍束力不足,易造成樁頂產生腫脹破壞,而限制礫石樁的承載能力。利用地工合成材加勁樁,防止頂端圍束力不足的現象,提升整體承載力,為近年發展的工法。本研究模擬現地軟弱粘土層採用加勁材以水平層狀方式置入礫石樁,探討層狀加勁是否有效提升樁體承載力,及提供較佳的圍束力。試驗使用三種不同勁度材料(GT1、GT2、GT3),兩種不同層數(五層與十層)進行模型試驗。由試驗結果得知,水平層狀置入加勁材確能有效提升軟弱粘土中礫石樁的承載能力,亦明顯抑制加勁樁體的徑向應變。
    Relation: 第十六屆大地工程學術研討會暨國科會成果發表會
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Proceeding

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