平陆运河青年枢纽坝址选择和平面布置  

Dam site selection and general arrangement of Pinglu Canal Youth Hub

作　　者：董霞[1] 吴澎[1] 吕小龙 DONG Xia;WU Peng;LYU Xiaolong(CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2023年第9期151-157,共7页Port & Waterway Engineering

摘　　要：平陆运河青年枢纽所在工程河段河道弯曲,坝址处桥梁众多,建筑物密集,库区为钦州市饮用水源保护区,船闸运行受咸水上溯影响,坝址选择和平面布置影响因素复杂。从地形地质、通航条件、淹没影响、接岸条件、对周边建筑物的影响和工程投资等方面,对坝址选择和平面布置进行了多方案比选。结合物理模型试验研究,优化上游口门区和连接段航道布置,改善上下游引航道口门区通航水流条件。在保证通过能力不低于上游梯级的条件下,互灌互泄的省水方案可提高最大通航流量,工程投资较低,平面布置方案更优。The project section of Pinglu Canal Youth Hub is located in a curved channel,with numerous bridges and dense buildings at the dam site.The reservoir area of Youth Hub is the drinking water source protection area of Qinzhou City.The operation of the ship lock is affected by the salt water flowing upstream.The influencing factors of dam site selection and general arrangement are complicated.This paper compares the site selection and general arrangement of the dam with multiple schemes from the aspects of topography and geology,navigation condition,flood impact,landing condition,impact on surrounding buildings and project investment,etc.Based on the physical model test,the paper optimizes the channel arrangement of the upstream entrance area and connecting section and improves the navigable flow conditions of upstream and downstream entrance areas.Under the condition that the carrying capacity is not lower than the upstream cascade,the water-saving scheme of mutual irrigation and mutual discharge can increase the maximum navigable flow with lower project investment and a better general arrangement scheme.

关 键 词：青年枢纽 分散布置 平面布置 省水船闸 通航流量 

分 类 号：U612[交通运输工程—船舶及航道工程]