分?jǐn)?shù)導(dǎo)數(shù)粘彈性土層模型中樁基豎向振動(dòng)特性研究_圖文

1、 182 工 程 力 6 學(xué) 5 結(jié)論 在考慮三維波動(dòng)效應(yīng)的條件下，綜合運(yùn)用分?jǐn)?shù) 導(dǎo)數(shù)理論、土動(dòng)力學(xué)理論和樁基動(dòng)力學(xué)相關(guān)理論， 并借助于分離變量法等手段，研究了分?jǐn)?shù)導(dǎo)數(shù)粘彈 性土中樁基的豎向振動(dòng)問(wèn)題。由于土體的力學(xué)行為 受溫度、濕度、孔隙率等環(huán)境的影響較大，利用分 數(shù)導(dǎo)數(shù)粘彈性模型來(lái)描述土體的應(yīng)力-應(yīng)變關(guān)系， 從 而達(dá)到精確刻畫(huà)土體力學(xué)特性的目的。通過(guò)研究發(fā) 現(xiàn)分?jǐn)?shù)導(dǎo)數(shù)粘彈性土中樁基的豎向振動(dòng)受分?jǐn)?shù)導(dǎo) 數(shù)的階數(shù)、土體模型參數(shù)和長(zhǎng)徑比的影響較大，為 了更好的進(jìn)行樁機(jī)抗震設(shè)計(jì)和樁基檢測(cè)，需要綜合 考慮樁基和土體的力學(xué)特性。 參考文獻(xiàn)： 1 Nogami T, Novak M. Soil-pile

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