摘要
目前南水北调中线水面线的推算采用传统恒定非均匀流公式,糙率等水力参数需根据实际情况,定期复核并进行修正,缺乏灵活性。结合中线调度实际,建立了基于遗传程序设计的渠道水面线计算模型,利用遗传程序自动拟合渠段上游节制闸闸后水位与下游节制闸闸前水位、输水流量的非线性关系,从而实现在闸前常水位控制模式下不同输水流量的水面线推算。经在南水北调中线干线工程典型渠段的试用表明,建立的基于遗传程序水面线计算模型灵活性强、拟合精度高、操作方便,具有较高的实际应用价值。
At present,the traditional formula of steady non uniform flow is used to calculate the water surface curve in the South-to-North Water Diversion Middle Route. The hydraulic parameters such as roughness need to be revised commonly according to the actual situation,which lacks flexibility. Combining with the practice of dispatching,a calculation model of channel water surface curve based on genetic programming was established. The non-linear relationship could be automatically fitted by genetic programming,so that the calculation of different water surface curves under the control mode of constant downstream depth operation could be realized. The trial results of typical canal sections of the Middle Route of South-to-North Water Transfer Project show that the water surface curve calculation model based on genetic program is flexible,accurate and easy to operate,and has high practical application value.
作者
陈晖
陈海涛
关莹
陈晓楠
田竞
CHEN Hui;CHEN Haitao;GUAN Ying;CHEN Xiaonan;TIAN Jing(Administration of South-to-North Water Diversion Middle Route Project,Beijing 100038,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;River Course Authority of New Huaihong River of Anhui Province,Bengbu 233000,China;Water Conservancy and Environment,Zhengzhou University,Zhengzhou 450001,China)
出处
《人民黄河》
CAS
北大核心
2019年第1期58-60,64,共4页
Yellow River
关键词
遗传程序
水面线
长距离输水
南水北调中线
genetic programming
water surface curve
long distance water conveyance
South-to-North Water Diversion Middle Route
