【摘要】 岩 -土 -砼结构的强度参数估算是桩基、基坑与有支挡结构斜坡数值模拟和稳定性计算不可缺少的工作之一。在变形协调条件下推导出求支挡结构 (桩 )的单轴抗拉和抗压强度公式 ,在二维应力和三维应力状态分别与莫尔 -库尔斜直线和莫尔抛物线强度准则组合成四种情况下 ,推导出求岩、土、支挡结构 (桩 )的粘聚力、内摩擦角及其单轴抗拉和抗压强度公式 ,最后进行误差分析。该研究结果具有重要的理论意义和工程应用价值更多还原

【Abstract】 Estimate of strength parameters of rock soil concrete structure is a necessary work of numerical simulation and stability calculation of pile foundation,excavation pit and slope with the retaining structure. Formulate calculating cohesion and intemal friction angle of rock,soil and the retaining structure(pile)are derived from four combination conditions of two dimensional and three dimensional stresses with failure criterions of Mohr Coulomb’s parabola, finally deviation is discussed.The study result has the important theoretical significance and the practical value of engineering.更多还原