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利用非飽和土滲流理論,對溝后混凝土面板砂礫石壩進行瞬態滲流數值模擬。通過對均質壩體和壩料明顯分層后壩體的滲流場進行對比分析,研究了兩種情況下壩體滲流場隨時間的變化特性以及水力參數的分布特性。指出填料嚴重分層后對壩體滲流場的影響以及對壩坡滲透穩定性的不利影響。Transient seepage analyses for Gouhou concrete faced rockfill dam were conducted using the unsaturated soil seepage theory. Through comparison of the seepage fields in a uniform dam and an evidently stratified dam, the evolution of seepage with time and the distribution characteristics of the hydraulic parameters in the two cases were studied. The effects of the stratification of rockfill on the seepage field and the stability of the dam slope were highlighted.