论文部分内容阅读
陆水水利枢纽3号副坝设置溢流坝,最大下泄流量达1500m~3/s,下游最高水位平溢流堰顶,上下游水位差仅17m,单宽流量达100m~3/s。工程技术人员大胆创新 , 提出低鼻坎面挑流消能的设想。经过水工模型试验, 选择合适的挑射角、反弧半径、鼻坎高程及两侧导墙长度, 选定简化的低鼻坎消能工方案, 从而大大节省工程量,并为在一个枯水季建成3号副坝创造条件。经过多年泄洪运行,冲刷坑安全,运行灵活可靠。
The spillway dam is installed at the auxiliary dam of No.3 dam of Lushui Water Conservancy Project. The maximum discharge flow reaches 1500m ~ 3 / s. The top level of the uppermost level weir overflows downstream. The water level difference between the upper and lower reaches is only 17m and the single-wide flow rate reaches 100m ~ 3 / s. Engineering and technical personnel bold innovation, put forward the idea of low nose canker face energy dissipation. After the hydraulic model test, select the appropriate firing angle, arc radius, nasal ridge elevation and the length of the guide wall on both sides, select a simplified low-nose energy dissipater program, thus saving a significant amount of engineering, and in a dry Water season built on the 3rd auxiliary dam to create conditions. After years of flood discharge operation, the scour pit is safe and the operation is flexible and reliable.