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(浙江大學(xué)土木工程系 杭州 310027)
【提要】 通過溫州深厚軟土地區(qū)小直徑純摩擦長樁的靜載荷試驗(yàn)和樁身軸力的測(cè)試，探討了小直徑純摩擦長樁的承載力性狀和荷載傳遞機(jī)理，把實(shí)測(cè)摩阻力與理論值進(jìn)行比較，指出這類樁從承載力角度看，存在著有效樁長。結(jié)合測(cè)試數(shù)據(jù)對(duì)樁身壓縮變形特性進(jìn)行了計(jì)算和討論，可供純摩擦長樁的理論研究和工程設(shè)計(jì)借鑒。
【關(guān)鍵詞】 軟土地基 純摩擦長樁 荷載傳遞 有效樁長 樁身壓縮變形
Study on Bearing Behavior of Purefriction Long Pile in Soft Clay/Zhu Kui,Xu Riqing(Department of Civil Engineering,Zhejiang University,Hangzhou 310027,China)
Abstract:The bearing capacity behavior and load transfer mechanism of small diameter purefriction long pile in Wenzhou soft clay area are discussed,based on the static loading test and axial force test.Comparing  real friction with  theoretical friction,it is presented that the pile has valid length for bearing capacity.Furthermore,the behaviors of pile shaft compression are studied using the testing data.The study on transferring law of axial force and the action of lateral friction resistance of small diameter purefriction long piles in soft clay is beneficial for design application.
Keywords:soft soil foundation；purefriction long pile;load transfer,valid length of pile;pile shaft compression