DESIGN OF LATERALLY LOADED DRIVEN PILES USING THE FLAT DILATOMETER
DESIGN OF LATERALLY LOADED DRIVEN PILES USING THE FLAT DILATOMETER
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使用扁平膨胀计设计横向受力打入桩
DOI：
10.1520/gtj10671j
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
R. Campanella
中科院分区：
文献类型：
--
作者：
P. Robertson;M. Davies;R. Campanella
非线性地基反力法(P-y曲线)被广泛应用于水平荷载桩的设计。该方法用一系列独立的非线性温克勒弹簧来代替土的反力。提出并评价了一种利用扁平膨胀仪试验(DMT)数据确定P-y曲线的初步半经验方法。简要介绍了该设备、测试程序以及确定P-y曲线族的原理。P-y曲线被用作现有有限差分程序的输入，该程序计算不同水平荷载下桩的挠度随深度的变化。利用三根全尺寸水平荷载试桩的数据对该方法进行了评价。对桩在水平荷载作用下的受力性能与实测值进行了比较和讨论。
The nonlinear subgrade reaction method (P-y curves) is widely used for the design of laterally loaded piles. This method replaces the soil reaction with a series of independent nonlinear Winkler springs. A preliminary semi-empirical approach for the determination of P-y curves using data obtained from a flat dilatometer test (DMT) is presented and evaluated. A brief description of the equipment, testing procedures, and the theory that enables the family of P-y curves to be determined are presented. The P-y curves are used as input for an existing finite-difference program, which calculates pile deflection versus depth at various lateral loads. An evaluation of the proposed method is presented using data from three full-scale laterally loaded test piles. A comparison and discussion are provided between the predicted and measured behavior of the piles during lateral loading.