牛栏江黄角树水电站大泄量大角度弯道溢洪洞设计
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摘要
介绍牛栏江黄角树水电站大泄量大角度弯道溢洪洞设计,溢洪洞布置在泄洪排沙(导流)洞外侧,平面转弯达59.9°,进口闸室位于库区,洞身段围岩卸荷裂隙发育,出口明渠及挑流鼻坎位于深厚河床冲积层上,设计采取了多种加强处理措施,确保了溢洪洞顺利完建并投入使用。并经受年2014年8.03地震后最大泄流量3000m3/s的考验。
The paper gives an introduction to the design of the spillway tunnel with a large discharge and a large angle bend of the Huangjiaoshu Hydropower Project. The spillway tunnel is located at the external side of the flood discharging and flushing(diversion) tunnel at a plane turning angle of 59.90, the inlet gate chamber is located in the reservoir area, load-relieved fissures are developed in surrounding rocks of the tunnel, and both open channel and flip bucket are arranged on the deep and thick river bed alluvium. Various reinforcing treatment measures were taken in the design in order to ensure successful completion and operation of the spillway tunnel as scheduled. The spillway tunnel successfully experienced the maximum water discharge of 3,000m3/s after occurrence of an earthquake on August 3rd, 2014.
The paper gives an introduction to the design of the spillway tunnel with a large discharge and a large angle bend of the Huangjiaoshu Hydropower Project. The spillway tunnel is located at the external side of the flood discharging and flushing(diversion) tunnel at a plane turning angle of 59.90, the inlet gate chamber is located in the reservoir area, load-relieved fissures are developed in surrounding rocks of the tunnel, and both open channel and flip bucket are arranged on the deep and thick river bed alluvium. Various reinforcing treatment measures were taken in the design in order to ensure successful completion and operation of the spillway tunnel as scheduled. The spillway tunnel successfully experienced the maximum water discharge of 3,000m3/s after occurrence of an earthquake on August 3rd, 2014.
引文
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[3]DL/T 5166-2002,溢洪道设计规范[S].
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[5]哈岸英,刘磊.明渠弯道水流运动规律研究现状[J].水利学报,2011,42(12):1462-1469.
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[7]DL/T5195-2004水工隧洞设计规范[S].
[8]索丽生,刘宁,高安泽,等.水工设计手册(7泄水与过坝建筑物)[M].北京:中国水利水电出版社,2014
[2]张宗亮,刘兴宁,董绍尧,等.大型堆石坝枢纽工程泄洪建筑物水力设计研究[Z].国家科技成果.
[3]DL/T 5166-2002,溢洪道设计规范[S].
[4]张红武,吕昕.弯道水力学[M].北京:水利电力出版社,1993.
[5]哈岸英,刘磊.明渠弯道水流运动规律研究现状[J].水利学报,2011,42(12):1462-1469.
[6]童思陈,许光祥,钟亮.弯道水流纵向流速剖面的试验研究[J].水力发电学报,2010,29(4):84-88.
[7]DL/T5195-2004水工隧洞设计规范[S].
[8]索丽生,刘宁,高安泽,等.水工设计手册(7泄水与过坝建筑物)[M].北京:中国水利水电出版社,2014