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High-water-head hydropower station water inlet structure without desilting basin and desilting and desilting method
The high-water-head hydropower station water inlet structure comprises a dam and a power station water inlet, the power station water inlet is located in one side of the dam and forms an included angle with the dam, the dam is provided with a spillway, the power station water inlet is located in the upstream of the spillway, and the bottom of the spillway is provided with a bottom hole; a sand blocking ridge is arranged at the bottom of the power station water inlet, and the sand blocking ridge and a bottom plate of the power station water inlet are higher than the bottom hole of the spillway. The water inlet of the power station is located on one side of the dam and forms an included angle with the dam, so that the reservoir has a good desilting effect, the bottom hole of the spillway and the bottom plate of the water inlet of the power station have a height difference by arranging the sand blocking ridge so as to lead reservoir water with low sand content on the surface layer, and a desilting basin structure can be omitted. The structure does not need to be provided with a desilting basin structure, the effective storage capacity is kept, meanwhile, investment is saved, the work amount is reduced, and the construction difficulty is lowered.
一种取消沉沙池的高水头水电站进水口结构及沉排沙方法，包括大坝和电站进水口，所述电站进水口位于大坝的一侧，并与大坝构成夹角，所述大坝设有溢洪道，电站进水口位于溢洪道上游，溢洪道的底部设有底孔，所述电站进水口的底部设有挡沙坎，挡沙坎和电站进水口的底板高出所述溢洪道的底孔。电站进水口位于大坝的一侧，并与大坝构成夹角，使水库具有较好的沉沙效果，通过设置挡沙坎，使溢洪道的底孔与电站进水口底板具有高差，以引取表层含沙量少的库水，从而可取消设置沉沙池结构。该结构无需设置沉沙池结构，在保持有效库容的同时还节省投资、减少工程量、降低施工难度。
High-water-head hydropower station water inlet structure without desilting basin and desilting and desilting method
The high-water-head hydropower station water inlet structure comprises a dam and a power station water inlet, the power station water inlet is located in one side of the dam and forms an included angle with the dam, the dam is provided with a spillway, the power station water inlet is located in the upstream of the spillway, and the bottom of the spillway is provided with a bottom hole; a sand blocking ridge is arranged at the bottom of the power station water inlet, and the sand blocking ridge and a bottom plate of the power station water inlet are higher than the bottom hole of the spillway. The water inlet of the power station is located on one side of the dam and forms an included angle with the dam, so that the reservoir has a good desilting effect, the bottom hole of the spillway and the bottom plate of the water inlet of the power station have a height difference by arranging the sand blocking ridge so as to lead reservoir water with low sand content on the surface layer, and a desilting basin structure can be omitted. The structure does not need to be provided with a desilting basin structure, the effective storage capacity is kept, meanwhile, investment is saved, the work amount is reduced, and the construction difficulty is lowered.
一种取消沉沙池的高水头水电站进水口结构及沉排沙方法，包括大坝和电站进水口，所述电站进水口位于大坝的一侧，并与大坝构成夹角，所述大坝设有溢洪道，电站进水口位于溢洪道上游，溢洪道的底部设有底孔，所述电站进水口的底部设有挡沙坎，挡沙坎和电站进水口的底板高出所述溢洪道的底孔。电站进水口位于大坝的一侧，并与大坝构成夹角，使水库具有较好的沉沙效果，通过设置挡沙坎，使溢洪道的底孔与电站进水口底板具有高差，以引取表层含沙量少的库水，从而可取消设置沉沙池结构。该结构无需设置沉沙池结构，在保持有效库容的同时还节省投资、减少工程量、降低施工难度。
High-water-head hydropower station water inlet structure without desilting basin and desilting and desilting method
一种取消沉沙池的高水头水电站进水口结构及沉排沙方法
ZHENG ZHEN (author) / HE XIONGFEI (author) / SHI LI (author) / FENG JIANJIANG (author) / LIU YUXI (author) / ZHAO CHUNTAO (author) / YAO DESHENG (author) / LI QINGTIE (author) / WANG CHAOJIANG (author) / CHEN JIAJIA (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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