横向荷载桩的模型试验与数学求解的耦合法

A Coupling Method of Model Test and Mathematical Analysis for Laterally Loaded Pile

本文从桩的受力特性入手,分析了横向荷载桩理论求解方法的困难和模型试验方法之不足。提出了模型试验与数学求解的耦合法,以简化试验的测试系统,提高试验的精度和试验成果的合理性。并就测试系统的选择和数学求解的方法进行了论述,认为测试系统的选择以实测弯曲应变为主,辅以少量位移测点为好。在进行数学求解时,数值微分法介绍了差分法,推导了带条件的多项式拟合、分段带条件的多项式拟合等方法,在实际应用中应根据不同问题选取不同的方法。最后介绍了耦合法在某抗滑桩试验中的应用情况。

Analysed the difficulties of theoritical method and the deficiencies of model test for laterally loaded piles,this paper proposes a coupling method of model test and mathematical analysis and discusses the key problems of the coupling method which include the choice of a simple and reliable surveying system and the accurate numerical methods to get each physical variable of laterally loaded pile.The author gives a example applied the proposed method to anti-sliding pile.