摘要
为阐明峡江枢纽围堰施工期河道水力特征,指导工程施工,采用峡江站水文资料及枢纽实测水位,在率定好1维数学模型的基础上,建立了赣江峡江段平面2维水流数学模型,定量计算枢纽重要水域水流流态,分析流场形态的变化特征和局部流态对枢纽尤其是围堰的影响,并将研究结果与物理模型试验结果做了对比分析.结果表明2维数学模型能较准确地计算围堰工程局部水位及流场变化情况,峡江枢纽围堰施工方案可行.
In order to guide the cofferdam construction, the channel hydraulic characteristics were studied during the construction period. After verification the one-dimensional mathematical model with hydrological data of Xiajiang hydrological station and the measured water level at water control project dam site, a two-dimensional numerical model was developed to simulate waters region around the water control project with erodible bed and banks com- posed of well sorted-sandy materials. The waters flow pattern around the hub was quantitative calculated, the chan- ges characteristics of flow and effects of local flow patterns for hub especially cofferdam were analysis, and the re- search results were compared to physical model rest results. The results show that the two-dimensional mathematical model can accurately estimate the local water level and flow field of cofferdam engineering ehanges,Xiajiang water control project eofferdam construction scheme is feasible.
出处
《江西师范大学学报（自然科学版）》
CAS
北大核心
2013年第5期544-550,共7页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
国家自然科学基金(51209115
51369024)
江西省科技厅支撑课题(20133BCB23025
20133DDH80028
20122BAB213019
20122BDH80025
2012ZBBA10001
20123BBG70196)
鄱阳湖环境与资源利用教育部重点实验室开发基金(13005874
13005875)资助项目
关键词
峡江
围堰
水力特性
数学模型
Xiajiang River
cofferdam
hydraulic characteristics
mathematical model
