长江砖灶子复杂滩险河段航道治理研究  

Waterway Regulation Research on Zhuanzaozi Complex Rapids Reaches of the Upper Yangtze River

作　　者：钟亮[1,2] 韩正国[2] 陈希 

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]重庆交通大学水利水运工程教育部重点实验室,重庆400074 [3]长江重庆航运工程勘察设计院,重庆401147

出　　处：《水电能源科学》2015年第7期108-113,共6页Water Resources and Power

基　　金：重庆市科委自然科学基金计划资助项目(cstc2012jjA00020);重庆市教育委员会科学技术研究项目(KJ120403)

摘　　要：针对长江砖灶子河段水沙条件多变、滩险特性综合、周边环境复杂的情况,分析了工程河段水文泥沙特性、河床演变规律和滩险碍航成因,结合该河段航道整治目标,提出了疏浚、炸礁、深沱回填和筑坝相结合的整治方案。应用平面二维水沙数学模型分析方案整治效果,经水流条件及河床变形验证,模型精度符合规范要求。在水流条件和典型年泥沙冲淤特性分析的基础上进行方案比选,并探讨了推荐方案的航槽稳定性,结果表明,推荐方案航道尺度满足规划要求且可长期保持,整治效果较好。研究结果可为山区河流复杂综合滩险的有效治理提供借鉴。In view of the facts that in Zhuanzaozi reaches, the flow and sediment conditions are variable, the naviga- tion hindering features are comprehensive and the surrounding environments are complex, the hydrological and sediment characteristics, riverbed evolution laws and navigation hindering causes of Zhuanzaozi reaches are analyzed. The regula- tion schemes are proposed with the target of waterway regulation, which includes various measures such as dredging, reef blasting, deep groove backfilling and spur dike building. The plane 2 D mathematical model of flow and sediment trans- port is applied to investigate the regulation effects of different schemes. Through the verification of flow and bed deforma- tion characteristics, the results show that the accuracy of the model is in compliance with the specification requirements. According to tb^e ~low conditions and sediment erosion and deposition characteristics of the typical year, the waterway reg- ulation schemes are compared and recommended, and the navigation channel stability of the recommended scheme is dis cussed. The results demonstrate that the channel scale meets the design requirements and can remain stable, which indi- cates the regulation effect is remarkable. The research results can provide reference for waterway regulation of complex and comprehensive rapids in mountainous rivers.

关 键 词：长江 砖灶子河段 航道整治 平面二维水沙数学模型 

分 类 号：U617[交通运输工程—船舶及航道工程]