摘要
城景水电站是利用三板溪水库回水的长期消落水头而兴建的水电站,可有效地改善上游河道的航运水流条件。设计船闸布置于泄洪闸中间,枢纽泄洪方式对上下游引航道及口门区水流条件影响大;下游引航道口门区位于弯道凸岸,通航水流条件复杂难以满足通航安全要求。针对以上问题,通过1∶80比尺的整体枢纽模型,研究下游不利通航水流条件的成因。通过降低通航标准、设置导流墩、疏浚凸岸岸线、优化枢纽调度,使引航道及口门区通航水流条件满足通航规范要求,为枢纽通航设计提供了可靠依据。
Built on the tail of Sanbanxi reservoir, Chengjing hydro-power plant water head of Sanbanxi hydro-fluctuating, which can improve the flow condition g of enerates electricity with the upstream as a result. The navigation lock is built among sluice gates. The flow condition of the approaching entrance area is significantly influenced by the operation scheme of the sluice.The downstream approaching entrance area locates at the convex of bank, and the flow condition is complex and cannot meet the demand of navigating safety. Focusing on the above questions, we probe into the causes of adverse flow regime with a scale 1：80 physical model. Taking measures including decreasing navigable standards, setting diversion piers, excavating the convex bank and optimizing the junction＇s operating, we achieve the goal that the flow regime of the approach channel and the entrance area meet the demand of codes concerning the navigable flow.It provides a reliable basis for the hydro-power construction.
出处
《水运工程》
北大核心
2016年第12期126-131,共6页
Port & Waterway Engineering
关键词
城景枢纽
弯道凸岸
引航道
口门区
通航水流条件
Chengjing junction
convex bank
approach channel
approaching entrance area
navigable flow
