白鹤滩水电站大坝廊道通风系统设计
Ventilation system design for dam corridors in Baihetan hydropower station
摘要：
白鹤滩水电站大坝高289.0 m，为椭圆线型混凝土双曲拱坝。利用大坝两侧抗力体排水洞作为进风通道，左右岸通风竖井作为排风通道，大坝廊道通风采用自然通风和机械通风系统相结合的通风方式，并可根据不同运行工况采取不同的通风策略。该通风系统稳定可靠、灵活性高，可明显改善大坝廊道内的空气质量，为其他类似工程的通风系统设计提供参考。
Abstract：
The dam of Baihetan hydropower station is 289.0 m high and is an elliptical linear concrete hyperbolic arch dam. The resistance body drainage tunnels on both sides of the dam are used as the air inlet passage and the ventilation shafts on the left and right banks are used as the air exhaust passage. The dam corridor ventilation system adopts a combination of natural ventilation and mechanical ventilation system, and different ventilation strategies are adopted according to different operating conditions. This ventilation system is stable, reliable and flexible, which can significantly improve the air quality in the dam corridor and provide references for other similar engineering ventilation system designs.
Keywords:hydropower station; dam corridor; natural ventilation; mechanical ventilation; ventilation strategy