耿湾粘土斜墙坝防渗体系的效果直接影响坝体安全稳定,根据耿湾堆场粘土斜墙坝设计剖面,构建了渗流分析数值模型,采用固定网格有限元非饱和渗流分析方法,计算了坝体稳定渗流场,分析了其防渗体结构、筑坝材料渗透系数对坝体渗流场的影响,并建议采取反滤防护工程措施保护下游可能出现的出逸面坝坡。计算结果表明,坝体防渗体系有效可行。 The effect of the seepage prevention system of the inclined wall dam in Gengwan directly affects the safety and stability of the dam. According to the design profile of the clay inclined wall dam in Gengwan yard, a numerical model of seepage analysis is constructed. By using the finite element unsaturated seepage analysis method of fixed grid, The seepage field of the dam body is analyzed. The effect of its seepage control structure and the permeability coefficient of the dam material on the seepage field of the dam body is analyzed. It is suggested to take the anti-filtration protection engineering measures to protect the exit side dam slope that may appear in the downstream. The calculation results show that the dam seepage control system is effective and feasible.