A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Desilting method for restoring silting storage capacity of reservoir by using daily incoming water
The invention provides a desilting method for restoring the silting capacity of a reservoir by using daily incoming water. The method comprises the steps that incoming water in a non-flood season is accumulated by using a hydraulic structure, then a strip channel is built in a reservoir area to carry out water converging and sand flushing, silt is flushed into a sand flushing funnel, and the silt is discharged out of a dam through a sand discharging gate. According to the method, a water retaining building is built at the tail of the reservoir to accumulate the incoming water in the non-flood season, and then the strip channel is built in the reservoir area to conduct water converging and sand flushing; when the water inflow of a main river channel is small and the flow and the flow velocity required by silt flushing cannot be reached, the gate can be put down to stop and store water, and after enough water is stored, the gate is opened to discharge water for silt flushing; and on the other hand, when the flood season comes, the hydraulic structure is required to have the characteristic of full-section overflowing.
本发明提供了一种利用日常来水回复水库淤积库容的清淤方法，利用水工建筑物蓄积非汛期来水，后通过在库区内修建条渠进行束水冲沙，将泥沙冲入冲砂漏斗，通过排沙闸排出坝外；本发明方法通过在水库库尾修建挡水建筑物，蓄积非汛期来水，后通过在库区内修建条渠进行束水冲沙；在主河道来水量较小达不到冲淤所需流量和流速时，可以下闸拦水蓄水，待蓄到足够水量后，开闸放水进行冲淤；另一方面，在汛期来临时，该水工建筑物应具有可以全断面过流的特点。
Desilting method for restoring silting storage capacity of reservoir by using daily incoming water
The invention provides a desilting method for restoring the silting capacity of a reservoir by using daily incoming water. The method comprises the steps that incoming water in a non-flood season is accumulated by using a hydraulic structure, then a strip channel is built in a reservoir area to carry out water converging and sand flushing, silt is flushed into a sand flushing funnel, and the silt is discharged out of a dam through a sand discharging gate. According to the method, a water retaining building is built at the tail of the reservoir to accumulate the incoming water in the non-flood season, and then the strip channel is built in the reservoir area to conduct water converging and sand flushing; when the water inflow of a main river channel is small and the flow and the flow velocity required by silt flushing cannot be reached, the gate can be put down to stop and store water, and after enough water is stored, the gate is opened to discharge water for silt flushing; and on the other hand, when the flood season comes, the hydraulic structure is required to have the characteristic of full-section overflowing.
本发明提供了一种利用日常来水回复水库淤积库容的清淤方法，利用水工建筑物蓄积非汛期来水，后通过在库区内修建条渠进行束水冲沙，将泥沙冲入冲砂漏斗，通过排沙闸排出坝外；本发明方法通过在水库库尾修建挡水建筑物，蓄积非汛期来水，后通过在库区内修建条渠进行束水冲沙；在主河道来水量较小达不到冲淤所需流量和流速时，可以下闸拦水蓄水，待蓄到足够水量后，开闸放水进行冲淤；另一方面，在汛期来临时，该水工建筑物应具有可以全断面过流的特点。
Desilting method for restoring silting storage capacity of reservoir by using daily incoming water
一种利用日常来水回复水库淤积库容的清淤方法
XIE ZUNDANG (author) / SONG XIUCHANG (author) / MAO CHONGYANG (author)
2021-06-18
Patent
Electronic Resource
Chinese
Silting and Desilting of Reservoirs
| British Library Online Contents | 2000
BOOK REVIEWS - Silting and Desilting of Reservoirs
| Online Contents | 2000
Silting thickness analysis of regular desilting in rectangular and trapezoidal channel
| DOAJ | 2021
| HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2018