水利水电科学院林秉南教授主持的“高速水流消能和防气蚀新技术的研究”项目,在研究高速水流消能规律的基础上完成了宽尾墩新型消能系统的研究成果。传统的电站水坝设计中,闸墩尾部很窄,水流下泄时,形成低平高速水流,给河岸造成很大冲刷。为了保护河岸需要用很大投资来修建消力池。林秉南教授等经过长期基础研究,独创和推广了新型消能工,一改过去“窄尾墩”的大坝设计方案,将闸墩尾部加宽形成“宽尾墩”使闸孔在墩尾缩窄,迫使溢流水舌于墩尾部的过水断面,在横向骤然收缩,从而使水流向高处和远处喷出,水流的巨大能量在空中散失,大大减少了对河岸的冲刷,解决了坝工建设提出的高坝窄河谷、大流量等泄洪消能技术难题。应用该项成果设计大坝,改善了下游消能条件,缩短了 The project of “Research on New Technology of High-speed Flow Energy Dissipation and Anti-cavitation” chaired by Professor Lin Bingnan of the Academy of Water Conservancy and Hydropower, completed the research results of a new type of energy dissipation system for the wide-tailed pier on the basis of studying the law of high-speed water flow energy dissipation. In the traditional dam design, the tail of the gate pier is very narrow. When the water flow discharges, a low-level and high-speed water flow is formed, which causes a great erosion to the bank. In order to protect the banks requires a lot of investment to build the pool. After a long period of basic research, Prof. Lin Bingnan created and popularized a new type of energy dissipater and changed the dam design scheme of “narrow tail piers” in the past to widen the tail pier to form a “wide tail pier” Narrow, forcing the overflow water tongue in the tail section of the cross-section of the water, sudden contraction in the horizontal, so that the water flow to the heights and outspread, the huge flow of energy in the air dissipated, greatly reducing the riverbank erosion, to solve the dam Construction of high dam proposed a narrow valley, flood discharge and other large flow energy dissipation technology problems. Applying the results to design dams has improved downstream energy dissipation and shortened