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（溫州市建筑設(shè)計研究院，溫州 325003）

［摘要］通過工程實(shí)例和對同一承臺下長短樁各斷面的軸力量測，研究我國沿海城市具有兩個或多個較硬的持力層的軟土地區(qū)，當(dāng)上持力層變形模量大于下持力層時，長短樁樁基與長樁樁基的變形性狀機(jī)理，得出在該類地基中，長短樁樁基的沉降小于長樁樁基，且工程造價更低。該研究對我國沿海地區(qū)在該類地基工程中降低基礎(chǔ)造價、減少建筑物沉降有一定的借鑒作用。

［關(guān)鍵詞］長短樁；長樁；軸力量測；沉降量；軟土地基

Research on deformation character of long-short pile foundation and long pile foundation in Wenzhou

Jin Guoping, Li Zhaohui, Ye Qiang, Zou Zongxuan（Wenzhou Architectural Design and Research Institute, Wenzhou 325003, China）

Abstract:Based on practical cases and axial stress test of the long-short pile foundation of the same pile caps in the soft clay area, the deformation character of the long-short pile foundation and whole-long pile foundation under the geological condition which the strength of upperstratum is higher than the understratum when two or more layers are appeared in the soft clay area is analysed. Analysis also shows that both settlement and cost of the long-short pile foundation are less than those of the long pile foundation in this kind of ground. The conclusion can be used to decrease the settlement and reduce the cost of the buildings in this kind of ground at the coastal area of China.

Keywords:long-short pile foundation; long pile foundation; measurements of pile axial load; settlement; soft clay ground

作者簡介：金國平，教授級高工，Email:jgp@wzadri.com。

參考文獻(xiàn)

［1］王偉，等.長短樁樁基礎(chǔ)與其它類型基礎(chǔ)的比較分析［J］. 建筑結(jié)構(gòu)學(xué)報, 2006, 27(1).