【摘要】 建立了成层土中桩的受力模型,利用桩与土的相互作用,在Laplace变换和矩阵理论的基础上推导了桩顶在任意荷载作用下,桩的纵向振动半解析解。在把外部载荷简化为半正弦波载荷的情况下,利用该方法计算了桩中不同点处的位移响应,并将计算结果与实测结果进行了比较,从而证明了该方法的可行性。更多还原

【Abstract】 The mechanic model of pile in layered soils was established in the text.By taking advantage of the interaction between pile and soil,the semi-analytical solution of vertical vibration on pile was derived under any load on the top of pile on the base of Laplace transform and matrix theory.Under the condition of simplifying external load as semi-sine impulse exciting,the displacements response of various dot in the pile was calculated.The feasibility of this mothed was assured by comparing the theoretical analysis and field test data.更多还原