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利用通用的商业有限元软件Marc与Fortran语言的接口,并运用Marc的“死活单元”技术和网格加密技术,编制了混凝土坝渗流场的正分析程序.在此基础上,利用某混凝土宽缝重力坝的坝基扬压力测压管的水位观测资料,采用改进的遗传算法进化反演混凝土坝与坝基的渗透系数.算例表明,采用遗传算法 -Marc反演混凝土坝的渗透系数是可行的,且计算效率较传统计算方法要高.
Based on Marc’s interface with Fortran language and the Marc’s life and death cell technology and grid encryption technology, the positive analysis program of seepage field of concrete dam is compiled based on the interface between common commercial finite element software Marc and Fortran language.On this basis, The gravity data of the dam foundation and the piezometric pressure tube of the dam foundation are used to retrieve the hydraulic conductivity of the concrete dam and the dam foundation by using the improved genetic algorithm.The results show that it is feasible to use the genetic algorithm -Marc to invert the permeability coefficient of the concrete dam, And the calculation efficiency is higher than the traditional calculation method.