某水电站覆盖层地基渗透系数反演分析

Inversion Analysis of A Hydropower Station Covering Layer of Foundation Seepage Coefficient

结合某水利枢纽工程,基于其工程地质和水文资料(钻孔勘探和抽注水试验等),利用有限元ANSYS优化设计模块,对坝址区渗流域全天然渗流场进行三维渗流参数反演计算,以确定坝基的实际渗透系数,为后面的渗流分析、选择合理的渗流控制措施以及防渗技术方案优化提供可靠的计算依据。

This study focuses on a water conservancy hub project,which is on the basis of the engineering geological and hydrological data （drilling exploration and water injection test）. The applica- tion of the finite element ANSYS optimization design module is the main approach to do three dimensional seepage parameters inversion calculation for all natural seepage fields to address area seepage field. The result of which is useful to determine the actual permeability coefficient of dam foundation, and provide reliable calculation basis for the later seepage analysis, seepage control measures choice and the anti -seepage technology scheme optimization.