- 摘 要
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（1 南京工業(yè)大學(xué)土木工程學(xué)院，南京 210009； 2 東南大學(xué)交通學(xué)院，南京 210096）
［摘要］樁土的支承剛度通常存在數(shù)量級上的差異，因此實現(xiàn)樁土共同作用的關(guān)鍵是保證樁土的變形協(xié)調(diào)，對于摩擦樁可通過“塑性支承樁”的概念來實現(xiàn)，對于端承樁則需通過專門的變形調(diào)節(jié)裝置來實現(xiàn)。對該裝置進(jìn)行了研究，研制成功的變形調(diào)節(jié)裝置具有根據(jù)荷載自動調(diào)節(jié)自身變形的特點，并且支承剛度和變形調(diào)節(jié)范圍均可事先人為設(shè)定。工程實踐表明，研制的變形調(diào)節(jié)裝置成功實現(xiàn)了端承樁的樁土共同作用，取得了顯著的經(jīng)濟效益，該研究是正確、合理的，其工程實踐也是成功的。
［關(guān)鍵詞］變形調(diào)節(jié)裝置；支承剛度；差異沉降；變形協(xié)調(diào)
Manufacture and application of displacement adjustor used in pile and soil
Zhou Feng1,2,Zai Jinmin1,Mei Guoxiong1,Wang Xudong1(1 College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China; 2 Transportation College, Southeast University, Nanjing 210096, China)
Abstract:Larger difference occurs to bearing stiffness of piles and soil, so the key to realize interaction of pile and soil is that settlement of pile and soil must be coincident-To friction pile, interaction of pile and soil could be realized using concept of plastic bearing pile-To end bearing pile, the special equipment to adjust displacement must be studied. The displacement adjustor is manufactured successfully. It could adjust the displacement automatically according to loads, and its bearing stiffness and range of displacement could be predisposed. Application in practical project indicates that displacement adjustor realizes the interaction of pile and soil successfully, and it is economic. Consequently, it also shows that the research is rational, and its application is successful too.
Keywords:displacement adjustor; bearing stiffness; difference settlement; coincident settlement
國家自然科學(xué)基金項目(50678083)；江蘇省高校自然科學(xué)基礎(chǔ)研究項目(08KJB560002)。
作者簡介：周峰，博士后，講師，國家注冊土木工程師(巖土)，Email:jx_crab@163.com。
參考文獻(xiàn)
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