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地震波在地下介质中的传播可用双相介质二维弹性方程来描述．本文利用遗传算法反演地下介质的孔隙率，并进行了数值模拟，结果表明该方法是可行的．
Seismic wave propagation in underground media can be described by two-dimensional elastic media in two-phase equations. In this paper, the genetic algorithm is used to inverse the porosity of underground media and the numerical simulation is carried out. The results show that this method is feasible.