连续弯道间航运枢纽泄流能力模型试验研究  

Model Test Study on Discharge Capacity of Hydro-junction Between Continuous Bends

作　　者：纪橞颖 肖钦 王建中[4] 范红霞[4] 陶爱峰[1,2] JI Hui-ying;XIAO Qin;WANG Jian-zhong;FAN Hong-xia;TAO Ai-feng(Key Laboratory of Coastal Disaster and Protection,Ministry of Education,Hohai University,Nanjing 210098,China;College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China;Jiangxi Port Group Co.,Ltd.,Nanchang 330006,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China)

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,江苏南京210098 [2]河海大学港口海岸与近海工程学院,江苏南京210098 [3]江西省港口集团有限公司,江西南昌330006 [4]南京水利科学研究院,江苏南京210029

出　　处：《水电能源科学》2023年第11期95-98,共4页Water Resources and Power

摘　　要：拟建龙尾洲枢纽是一座以航运为主,兼顾防洪、水资源和水生态环境保护的低水头航运枢纽工程。坝址上下游各有2个连续弯道,坝址所在顺直段也较短,河道边界条件不利于工程后顺畅泄洪。为优化并论证拟建该枢纽总体布置方案的可行性,采用比尺为1∶80的整体水工物理模型,在水动力验证相似的基础上,对枢纽泄流能力进行试验研究,揭示了典型洪水条件下原设计方案的泄水闸过流分布和流量分配特征,阐明了原方案的不足及相应优化思路,提出了切除边滩的改善措施。通过优化方案试验,验证了泄流能力可以满足设计要求。研究结果可为本项目设计及类似工程提供参考。The proposed Longweizhou junction is a low-head hydro-junction project that focuses on navigation,flood control,water resources,and protection of the aquatic ecological environment.There are two continuous bends upstream and downstream of the dam site,and the straight section where the dam site is located is also short,so the river boundary conditions are not conducive to smooth flood discharge after the project.To demonstrate and optimize the general layout of the proposed hydro-junction,an integrated hydraulic-physical model with a scale of 1∶80 was adopted.On the basis of hydrodynamic similarity verification,a detailed experimental study was conducted on the discharge capacity of the hydro-junction,revealing the characteristics of flow velocity distribution and flow distribution in the original design scheme under typical flood conditions,clarifying the shortcomings of the original scheme and corresponding optimization ideas,putting forward the measure of cutting the side beach to improve discharge capacity.The optimized scheme test verified that the discharge capacity could meet the design requirements.The research results may serve as reference for the design of this project and other similar projects.

关 键 词：连续弯道 航运枢纽 泄流能力 物理模型 

分 类 号：TV652[水利工程—水利水电工程] TV135.2