【摘要】 提出了基于Nelder-Mead优化算法与有限单元法反演岩土力学参数的方法,以测点的实测值与计算值建立精确罚函数误差模型,并将有限元程序ABAQUS作为模块嵌入Nelder-Mead优化算法中编制了优化反分析程序。算例结果表明,该法局部搜索能力较强,反演精度高,可应用于岩土工程中的反演分析。更多还原

【Abstract】 Identification of parameters of geotechnical model is put forward by using Nelder Mead algorithm and finite element method.The error model of exact penalty function is established through the measured value and the corresponding calculation result.Optimal inversion program is compiled by embedding the ABAQUS into the finite element program.The results show that the proposed method has strong local search property and high precision.Thus,it can be applied to inversion analysis of geotechnical engineering.更多还原