三峡工程永久船闸水力学研究

三峡工程永久船闸总水头为１１３ｍ，为双线连续五级，中间级最大水头达４５．２ｍ，超过了国内外已建大型船闸的水平，其水力学问题十分复杂，通过多年来大量的试验研究，选用双侧主廊道四区段领先八支管动力平衡输水系统，输水阀门向弧形门，门后廊氏部吾突扩体型，门楣处减蚀措施，采用快速开启阀门和提前关闭阀门，以消除闸室水面惯性超高的不利影响，进水口旁侧取水方式等，不仅满足各项设计要求，并能保证船闸的安全运行。

Hydraulic Researches for Permanent Shiplock

With a total head of 113 m and a maximum head for the mediate step of up to 45. 2 m, which exceed the size of any project completed up to date in China and abroad, the TGP permanent two - way and five - step shiplock has many very complicated hydraulic challenges. Through numerous experimental studies for years, it has been determined that a dynamic equilibrium system will be selected, including a main water gallery, two sections and four bypasses arranged at each side, reverse radial gates, sudden enlargemental bottom bihind the gates, air devices arranged at the lintels,va1ves that can be high - speed started and shut - off in advance for eliminating the adverse impact due to inertial sudden raise or drop of water surface, and intakes and outlets arranged at either side, which can not only meet the design requirements but also ensure the safe operation of the shiplock.