青铜峡水库出库流量对宁蒙河段凌情的影响  

Influence of discharge of Qingtongxia Reservoir on ice run in Ningxia-Inner Mongolia reaches

作　　者：陈广圣[1,2] 王义民[1] 黄强[1] 马静[2] 

机构地区：[1]西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048 [2]吉林省水文水资源局延边分局,吉林延吉133001

出　　处：《自然灾害学报》2013年第5期198-203,共6页Journal of Natural Disasters

基　　金：国家重大基础研究计划项目(2011CB403306);国家自然科学基金项目(51179148;51179149;51190093);水利部公益性行业基金资助项目(201101043;201101049);教育部新世纪优秀人才支持计划项目(NCET-10-0933);陕西省重点实验室项目(11JS077)

摘　　要：黄河上游宁蒙河段地处黄河流域最北端,受水力、热力及河道形态等诸多自然、人为因素综合影响,凌情演变复杂多变。从微观到宏观、横向到纵向对宁蒙河段凌情过程进行了深入分析,根据宁蒙河段凌期行流特点拟定了青铜峡水库理想下泄过程,采用历史实际凌灾发生情况和青铜峡水库下泄过程对理想下泄过程进行检验,结果表明,结合凌汛期温度变化过程控制青铜峡下泄流量,能够减小凌灾发生的几率。The ice run flooding of the Ning xia-Inner Mongolia reach of the north of the Yellow River is affected by many natural and man-made factors such as hydro, thermal force and channel morphology and so on, and is thus much complex and changeable. In this paper, the ice flood process in Ningxia-Inner Mongolia reach was studied deeply, from micro to macro, and transverse to longitudinal views. The ideal discharge process of Qingtongxia reservoir was mapped out by flow characteristics. Then the ideal discharge process was tested by historical actual ice run disasters. Results show that, combined with process of temperature changes in the ice flood season, the probability of the ice disasters could be reduced by controlling the discharge process of Qingtongxia reservoir.

关 键 词：宁蒙河段 凌灾 下泄过程 青铜峡水库 

分 类 号：TV697.1[水利工程—水利水电工程]