关键词: 堆石坝, 流变, 免疫遗传算法, 参数反演, 瀑布沟水电站

Abstract: Too large rheology deformation of rockfill dam may cause damage of structure and affect the normal operation, so controlling dam body deformation is important to ensuring the dam safety. The reasonable parameters of earth material are the prerequisite for calculating the deformation of rockfill dam. Combing with the construction, operation and monitoring data of Pubugou Core Rockfill dam, we apply parameters inversion method to obtain the rheological parameters of rockfill dam materials based on immune genetic algorithm (IGA). The results show that the finite element calculation that adopts parameters obtained by inversion is in good reasonably agreement with the actual monitoring values, indicating that the presented method has high reliability and significant meanings to deformation control of rockfill dams.

Key words: core rockfill dam, rheology, immune genetic algorithm, parametric inversion, Pubugou Hydropower Station