葛洲坝航道冲沙闸设计特点与运行实施

本文叙述了葛洲坝大江和三江航道上布置的冲沙闸和消能工型式。通过试验,对闸孔、过流面、多级消力池进行了优化。它们具有排沙方便,消能好,能适应大流量、尾水低等优点。经三江闸10年多和大江闸4年多的运行和监测,冲沙效果好,冲沙闸、航道等建筑物运行正常,达到了预期目的。

Design Characteristics and Operation of Gezhouba Channel Scouring Sluice

This paper discourses the scouring sluice and the type of the dissipator situated in the naviga tion channels (the Grand Channel and the Third Channel) of Gezhouba project. They were optimized by many hydraulic model tests, such as the gate openings, the configuration of overflow, and the mul ti-step stilling basins, etc. They have the advantages of smooth sand-flush and a good performance in energy dissipation, and suit well with the large discharge and low tailwater level. It has been ten years for operation and observation of the Third Channel scouring sluice and four years for that of the Grand Channel. The scouring sluice and the channels have been being in a mor mal operation and achieve the desired results.