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采用正交试验方案和ν-SVR相结合的直接法来解决复杂坝基的初始渗流场反分析问题。通过安排正交数值试验,获取初始渗流场全面的信息,并用ν-SVR向正交试验的样本学习测孔水位和各参数之间的关系,从而建立各参数和测孔水位之间隐式表达式,用此表达式代替正算程序,经过优化最终获得最优初始渗流场。经过工程实例验证,该方法能适应非线性复杂岩土问题且具有高效性。
The direct solution of the initial seepage field of complex dam foundation is solved by the direct method combined with ν-SVR. By arranging orthogonal numerical experiments, comprehensive information of the initial seepage field is obtained, and ν-SVR is used to learn the relationship between the measured water level and each parameter in the orthogonal test sample so as to establish an implicit expression between each parameter and the measured water level Type, using this expression instead of positive program, after optimization, finally obtain the optimal initial seepage field. After engineering example validation, this method can adapt to nonlinear complex geotechnical problems and has high efficiency.