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Parabola-shaped spur dike structure and design method thereof
The invention discloses a parabola-shaped spur dike structure and a design method thereof, and belongs to the technical field of dike design. The parabola-shaped spur dike structure comprises an upstream slope, a downstream slope, a left embankment and a right embankment, the upstream slope and the downstream slope are symmetrically arranged and smoothly connected at the highest points of the upstream slope and the downstream slope, the normal lines of the upstream slope and the downstream slope at the highest points coincide, the lower end of the upstream slope is connected with the left embankment, and the lower end of the downstream slope is connected with the right embankment; the section of the parabola-shaped spur dike is in a parabola shape, the opening direction of the parabola is connected with an embankment, and the direction of the dike head is the offshore direction. According to the spur dike, water flow at the dam head can be smooth, turbulent flow and a backflow area are small, the unit width flow from incident flow concentration of the spur dike is effectively relieved, the scouring pressure of the dam head is relieved, the section of the spur dike is a smooth curve, corners and stress concentration points do not exist, durability is good, a certain angle is formed in the connecting position of the dam root and the bank side, lateral pressure is prevented from being perpendicularly transmitted to the downstream dam root bank, and the service life is prolonged. And the shoreside is protected.
本发明公开了一种抛物线形丁坝结构及其设计方法，属于堤坝设计技术领域。抛物线形丁坝结构包括迎水坡、背水坡、左堤岸和右堤岸，所述的迎水坡和背水坡对称布置并在它们的最高点处平滑连接，且迎水坡和背水坡在最高点处的法线重合，所述迎水坡的下端与左堤岸连接，所述背水坡的下端与右堤岸连接；所述抛物线形丁坝的断面形状为抛物线，抛物线开口方向与堤岸相连，坝头方向为离岸方向；本发明不仅能使坝头水流平顺，较小紊流和回流区，效缓解丁坝来自迎流集中的单宽流量，缓解坝头冲刷压力，而且丁坝断面为平滑的曲线，无拐角和应力集中点，耐久性好，坝根与岸边连接处呈一定角度，避免侧向压力垂直传到下游坝根岸，对岸边起到保护作用。
Parabola-shaped spur dike structure and design method thereof
The invention discloses a parabola-shaped spur dike structure and a design method thereof, and belongs to the technical field of dike design. The parabola-shaped spur dike structure comprises an upstream slope, a downstream slope, a left embankment and a right embankment, the upstream slope and the downstream slope are symmetrically arranged and smoothly connected at the highest points of the upstream slope and the downstream slope, the normal lines of the upstream slope and the downstream slope at the highest points coincide, the lower end of the upstream slope is connected with the left embankment, and the lower end of the downstream slope is connected with the right embankment; the section of the parabola-shaped spur dike is in a parabola shape, the opening direction of the parabola is connected with an embankment, and the direction of the dike head is the offshore direction. According to the spur dike, water flow at the dam head can be smooth, turbulent flow and a backflow area are small, the unit width flow from incident flow concentration of the spur dike is effectively relieved, the scouring pressure of the dam head is relieved, the section of the spur dike is a smooth curve, corners and stress concentration points do not exist, durability is good, a certain angle is formed in the connecting position of the dam root and the bank side, lateral pressure is prevented from being perpendicularly transmitted to the downstream dam root bank, and the service life is prolonged. And the shoreside is protected.
本发明公开了一种抛物线形丁坝结构及其设计方法，属于堤坝设计技术领域。抛物线形丁坝结构包括迎水坡、背水坡、左堤岸和右堤岸，所述的迎水坡和背水坡对称布置并在它们的最高点处平滑连接，且迎水坡和背水坡在最高点处的法线重合，所述迎水坡的下端与左堤岸连接，所述背水坡的下端与右堤岸连接；所述抛物线形丁坝的断面形状为抛物线，抛物线开口方向与堤岸相连，坝头方向为离岸方向；本发明不仅能使坝头水流平顺，较小紊流和回流区，效缓解丁坝来自迎流集中的单宽流量，缓解坝头冲刷压力，而且丁坝断面为平滑的曲线，无拐角和应力集中点，耐久性好，坝根与岸边连接处呈一定角度，避免侧向压力垂直传到下游坝根岸，对岸边起到保护作用。
Parabola-shaped spur dike structure and design method thereof
一种抛物线形丁坝结构及其设计方法
HAN YANCHENG (author) / BIAN PENGFEI (author) / LUO ZHEKE (author) / LIU ZHENGHAO (author) / HAN ZE (author) / HA CHENXI (author) / XIANG TAIYANG (author)
2024-10-01
Patent
Electronic Resource
Chinese
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