【摘要】 提出了摩擦群桩中单桩等效轴向刚度的概念 ,建议采用现场实测数据确定之 ;并运用这一概念分析了桥梁桩基础设计中的绝对刚性承台假定的适用性 ,探讨了摩擦群桩与嵌岩群桩承载机理的不同更多还原

【Abstract】 The equivalent axial rigidity of single pile in friction pile group is proposed. The determing method of the equivalent axial rigidity is given by using measured-in-situ data. The application scope of the absolutely rigid cap in the design of bridge pile foundation is analyzed with the new concept. The difference of the loading mechanisms between friction pile group and rock-socketed pile group is also discussed.更多还原