根据白鹤滩大坝工程及水文地质条件、渗控设计方案，建立了大型三维渗流仿真有限元模型，采用稳定渗流理论和排水孔精细化模拟方法，开展正常运行工况大坝渗流场仿真计算，研究大坝自由面、总水头、渗透坡降和渗漏量等渗流场分布特征，分析结构面的渗透稳定性。结果表明：坝基防渗帷幕能够有效阻隔库水从上游向下游的渗漏，有效截断可能存在的渗漏通道。排水孔幕能够有效降低周边自由面，排出坝基以及两岸坝肩处的渗漏水。层间错动带、断层与防渗帷幕和排水孔幕相交处出现较大渗透坡降，其余部位渗透坡降较小。渗控设计方案能够有效控制渗流场，防渗排水设施设计合理。

A three-dimensional finite element model of the geological and hydrogeological conditions of the Baihetan dam was developed to analyze the seepage control schemes. The model was used to model the seepage distribution characteristics of the dam foundation such as the soaking surface, the gross head, the hydraulic gradient and the seepage flow to analyze the seepage stability of weak intercalation. The analysis used steady seepage theory and accurate simulations of the drainage holes to simulate the seepage field for normal operation conditions. The results show that the dam foundation grouting curtain effectively prevents reservoir water leakage from upstream and effectively stops possible leakage channels. Drainage hole arrays significantly reduce the surrounding soaking surface area and drain leakage water from the dam foundation and abutments on both sides. There are large hydraulic gradients at the intersections of the bedding fault zone, fractural fault zone and grouting curtain and at the drainage holes, with small hydraulic gradients at other locations. The results show that the seepage control design scheme can effectively control the seepage and that the anti-seepage drainage design is reasonable.