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针对溪洛渡水电站具有“窄河谷、高拱坝、巨泄量”的特点，按照“分散泄洪、分区消能”的布置原则，以及“泄小洪水时运行灵活，泄中洪水时充分发挥水库调洪削峰能力，泄大洪水又有足够的超泄能力”的泄量分配原则，开展了多方案的坝身泄洪消能布置比较研究。结合水力模型试验，初步论证了坝身７表孔＋８深孔方案宣泄３００００ｍ３／ｓ的可行性。
In view of the characteristics of “narrow valley, high arch dam and huge amount of discharge” of Xiluodu hydropower station, in accordance with the principle of “decentralized flood discharge and sub-district energy dissipation” and the principle of “flexible operation when discharging small floods and flood discharge, Cutting peak capacity, discharge floods and sufficient capacity of excess capacity ”of the amount of discharge distribution principle, carried out a multi-program comparison of flood discharge dam layout. Combined with the hydraulic model test, the feasibility of venting 30000m3 / s in the 7 + 8 deep hole of dam body is preliminarily proved.