突扩突跌体型与偏心铰弧门运行方式问题

On the Operational Factors of Radial Gate with Eccentric Hinge on Abrupt Diffusion and Fall Structure

高水头泄水孔选用突扩突跌与偏心铰弧门配套布置型式，是一种值得十分重视的通气设施。本文分析研究了突扩突跌体型与偏心铰弧门的水力学问题，指出了弧门局部开启运行时应避免的最不利开度，并总结提出了克服“水翅”的补救措施。

A combination of abrupt diffusion and fall structure with radial gate with eccentric hinge is aworth-while adoption for outlet under high water head. This research has brought about an analysis on the hydraulic issues in the operation of radial gate with eccentric hinges on abrupt diffusion and fall structure. Thecritical pornt of partial opening of the radial gate to which the system is the most susceptible to problems is determined. Pre+ventive measures against 'water wing' phenomenon are given in conclusion for reference in engineering management and design practice