The cutoff wall near the dam axis, the consolidation grouting and the curtain grouting for the foundation, and the high pressure jet-grouted cutoff wall at the toe of the dam form a vertical anti-seepage system for the dam foundation.

• 大坝轴线附近的防渗墙、基岩固结和帷幕灌浆，以及上游坝脚处的高压摆喷防渗墙，在坝基构成了垂直防渗体系。