向家坝库区风浪要素计算公式及变化规律
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摘要
向家坝水库全面形成以后,蓄水至水电站正常运行水位380 m,库区干流航行条件得到本质改善;但随着库区水位与面积扩大,风大浪高现象渐显凸出,影响船舶安全航行。为了掌握库区的风浪要素的变化规律,评价风浪要素对船舶航行、停泊与作业的影响程度,通过国内外各水域的风浪要素计算方法及其计算理论研究分析,结合库区各典型断面的实测数据,拟合得到比较能真实反映向家坝库区库风浪要素变化规律的计算公式,并结合计算结果总结得到库区全年的风浪变化规律,为后期库区航道的建设管理及船型的开发设计提供了必要的基础资料。
After the formation of Xiangjiaba reservoir area,the navigation condition of the main stream in the reservoir area has been improved with the running water level of the hydropower station to 380 m. However,with the water level and area to expand,the wind waves elements gradually prominent and affecting the ship safe navigation. In order to grasp the changing law of the wind and wave elements in the reservoir area and evaluate the influence degree of wind and wave elements on the navigation,berthing and operation of the ship,the calculation method of wind and wave elements in various waters at home and abroad and its calculation theory was analyzed,combined with the typical sections of the reservoir area. The measured data is fitted to the calculation formula which can compare the change law of the wind and wave elements in the Xiangjiaba reservoir area,combined with the calculation results,the law of wind and wave changes in the reservoir area is obtained which provides the necessary basic data for the construction and management of the navigation channel and the development and design of the ship type.
After the formation of Xiangjiaba reservoir area,the navigation condition of the main stream in the reservoir area has been improved with the running water level of the hydropower station to 380 m. However,with the water level and area to expand,the wind waves elements gradually prominent and affecting the ship safe navigation. In order to grasp the changing law of the wind and wave elements in the reservoir area and evaluate the influence degree of wind and wave elements on the navigation,berthing and operation of the ship,the calculation method of wind and wave elements in various waters at home and abroad and its calculation theory was analyzed,combined with the typical sections of the reservoir area. The measured data is fitted to the calculation formula which can compare the change law of the wind and wave elements in the Xiangjiaba reservoir area,combined with the calculation results,the law of wind and wave changes in the reservoir area is obtained which provides the necessary basic data for the construction and management of the navigation channel and the development and design of the ship type.
引文
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2邹本飞,李想.波浪计算中风要素的合理确定[J].水利科技与经济,2009,15(8):692-698Zou Benfei,Li Xiang.Reasonable determination of stroke elements in wave walculation[J].Water Resources Science and Technology,2009,15(8):692-698
3杨华.有限风区风浪计算方法[J].电力勘测,1996,3(4):55-58Yang Hua.Calculation method of wind and wave in limited wind area[J].Electric Power Survey,1996,3(4):55-58
4杨正己.水库风浪计算方法[J].水运水利科学研究,1983,6(3):92-104Yang Zhengji.The calculation method of reservoir wind waves[J].Journal of Water Transport and Hydraulic Engineering,1983,6(3):92-104
5陈琦,潘金霞.浅水风浪要素推算公式比较[J].水运工程,2015,32(5):14-21Chen Qi,Pan Jinxia.Comparison of calculation formulas for shallow water wind waves[J].Water Transport Engineering,2015,32(5):14-21
6于晓利.小风区水域波浪预测方法的探讨[J].大连水产学院学报,2007,22(3):218-220Yu Xiaoli.Discussion on wave prediction method in small wind area[J].Journal of Dalian Fisheries University,2007,22(3):218-220
7曹勇.淀山湖水域风浪要素计算研究[J].长江流域资源与环境,2011,20(3):39-43Cao Yong.Calculation of wind and wave elements in Dianshan lake waters[J].Resources and Environment of the Yangtze River Basin,2011,20(3):39-43
8刘志明,王德信,汪德爟.水工设计手册[M].北京:水利电力出版社,1984:11-20Liu Zhiming,Wang Dexin,Wang Deguan.Hydraulic design handbook[M].Beijing:Water Power Press,1984:11-20
9王龙达,王兴成,郝华,等.城市轨道车辆阻力公式经验参数文化基因优化算法的研究[J].计算机应用研究,2017,36(12):123-127,141Wang Longda,Wang Xingcheng,Hao Hua,et al.Research on memetic optimization algorithm of empirical parameter for resistance formula of urban rail vehicles[J].Application research of Computers,2017,36(12):123-127,141