中国水利水电科学研究院学报2018，Vol.16Issue(2)：130-140,11.DOI:10.13244/j.cnki.jiwhr.2018.02.007
黄河万家寨水库上游段水动力特性研究
Hydrodynamic characteristics upstream of Wanjiazhai Dam in the Yellow River during freezing period
摘要
Abstract
In order to provide a scientific basis for preventing and reducing ice flood disasters upstream of Wanjiazhai Dam,the hydrodynamic characteristics and evolution of ice regime has been studied based on the measured data of water level,flow and river topography by using the HEC-RAS.The hydrodynamic process was simulated and the hydrodynamic parameters were given in typical periods in the reach of the Yellow River from Wanjiazhai to Toudaoguai from April 2013 to March 2014.The following conclusions are drawn on the basis of this study:(1) The relative error of the simulated water level with the measured water level is less than 13％,which shows that the method is feasible to simulate the spatial and temporal evolution of hydraulic factors in freezing period.(2) There are differences in the spatial distribution of the water levels at this reach in dry periods,flood periods,ice-flowing periods and break-up periods,and there are positive correlation between the flood peaks and flows of upstream-downstream combining with the characteristics of flows.(3) Through analyzing the process of water depth and flow velocity at the typical sections,it is found that the Section of Caojiawan is prone to form ice jams and cause ice disasters because of the smaller sectional area and lower flow velocity.关键词
时空分布/演变规律/HEC-RAS/水动力模拟/黄河干流Key words
space-time distribution/evolvement rule/HEC-RAS/hydrodynamic simulation/mainstream of The Yellow River分类
水利科学引用本文复制引用
袁博文,牟献友,冀鸿兰,张宝森..黄河万家寨水库上游段水动力特性研究[J].中国水利水电科学研究院学报,2018,16(2):130-140,11.基金项目
国家重点研发计划项目(2016YFC0402501) （2016YFC0402501）
同家自然科学基金项目(51369017,51569020) （51369017,51569020）
内蒙古自然科学基金项目(2015MS0515) （2015MS0515）
