凌汛期槽蓄水增量过程模拟  

Simulation of channel-storage increment process in ice flood period

作　　者：张防修[1,2] 席广永[3] 张晓丽[2] 王国庆[4] 黄瑞[1] 

机构地区：[1]河海大学环境科学与工程学院,江苏南京210098 [2]黄河水利科学研究院,河南郑州450003 [3]郑州轻工业学院计算机与通讯工程学院,河南郑州450001 [4]南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京210029

出　　处：《水科学进展》2015年第2期201-211,共11页Advances in Water Science

基　　金：国家自然科学基金资助项目(51409112);水利部公益性行业科研专项经费资助项目(201301062)~~

摘　　要：为研究凌汛期槽蓄水增量来源,在分析实测冰情资料基础上,把槽蓄水增量分为水位壅高主河道蓄水量增大、主河道内河水转化为固体冰盖和上滩水形成冰盖及在冰下聚集等3部分,建立河冰动力学模型,模拟河冰生消及槽蓄水增量过程,利用2008/2009年度三湖河口—头道拐河段实测冰情资料对模型进行了验证,表明滩地冰盖及冰盖下滞洪是内蒙古河段槽蓄水增量的主要来源,占最大槽蓄水增量的63.44%,主河道水位壅高引起的槽蓄水增量占26.56%,主槽冰盖蓄水占10.0%。The channel-storage increment was normally divided into three parts including backwater increment,ice increment in the channel and on the beach,detention water by ice cover and ice jam based on observations. In order to investigate the major sources of channel-storage increment during ice flood season,a river ice dynamics model was established to simulate channel-storage increment process（ e. g. growth and decay processes of river ice）. The model was then applied to the river channel from the Sanhuhekou station to the Toudaoguai station located in the Inner Mongolia. Results show that flood detention under beach ice cover is the principle source of channel storage increment,accounting for about 63. 44% of the maximum channel storage increment. The channel stem storage increment and river ice share the rest increment,accounting for approximately 26. 56%,10% of total increment.

关 键 词：槽蓄水增量 热交换 河冰生消 数学模型 

分 类 号：TV122[水利工程—水文学及水资源]