中高水头枢纽船闸改扩建工程围堰设计技术

Design technique for cofferdam of medium-high-head ship lock reconstruction & extension project

根据富春江船闸扩建改造工程,从设计角度对中高水头枢纽船闸改扩建工程围堰的导流标准、总体布置及结构设计进行重点研究。在兼顾防洪、发电、河道变化等需求前提下研究确定围堰枯水期防洪等级,结合船闸水工建筑物布置优化调整围堰总体布置方案,并根据坝下围堰不同区段提出不同结构形式的过水围堰,为类似的中高水头枢纽船闸改扩建工程围堰设计提出新设计理念和思路,为多样性的围堰工程增加新特点。

According to Fuchunjiang fiver lock reconstruction project, we probe into the diversion standard for the medium-high-head hydraulic lock＇ s cofferdam expansion project, the overall layout and structural design from the design point. Under the prerequisite of satisfying the demand of flood-control, power generation and channel variation, we determine the dry season flood control level of the cofferdam. Combining with the arrangement of the lock＇s hydraulic structure, we optimize the overall layout scheme for the cofferdam, and propose overfall cofferdams of different structural types for different sections of cofferdam, to serve new design ideas and train of thought for the design of similar high-head lock reconstruction project＇s cofferdam, and add new features for the cofferdam engineering.