- 摘 要
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俞炯奇 張土喬 蘭柳和
（浙江大學土木工程學系 杭州 310027）[提要] 杭州市城市建設正向城東發(fā)展，為了搞清其地下35～55m處深厚圓礫層承載特性，根據已有的工程試樁實測資料分析了該深厚圓礫層作為持力層的大直徑鉆孔灌注樁的荷載傳遞機理及承載性能，為進一步合理地利用該深厚圓礫層提供一定的理論依據。
[關鍵詞] 大直徑鉆孔灌注樁 樁基持力層 圓礫層 荷載傳遞機理 承載性能 沉降Large-scale construction items and highrise building begin to build in the eastern part of Hangzhou. In order to clarifying the characteristic of bearing capacity of the deep-seated roundstone stratum, according to existing field test results, the author analyses the mechanism of load transferring and the characteristic of bearing capacity of large-diameter cast in place piles which beared on the deep-seated roundstone stratum. The results provide certajn theory basis for further reasonably using the deep-seated roundstone stratum.
Keywords: large-diameter cast in place piles; bearing stratum; roundstone stratum; mechanism of load transfering; bearing capacity; settlement
