黄河水利职业技术学院学报
黃河水利職業技術學院學報
황하수리직업기술학원학보
JOURNAL OF YELLOW RIVER CONSERVANCY TECHNICAL INSTITUTE
2014年
2期
9-11
,共3页
黄河宁蒙段%2012~2013年度%凌情特点%影响因素%预防措施
黃河寧矇段%2012~2013年度%凌情特點%影響因素%預防措施
황하저몽단%2012~2013년도%릉정특점%영향인소%예방조시
Yellow River Ningmeng section%2012-2013%ice-run situation feature%influential factor%pre-vention measures
2012~2013年度,黄河宁蒙段的凌情特点是流凌、封河早,封河水位低,槽蓄水量大,开河时间早,开河洪峰小等。封河前期气温低、开河前期气温偏高、2012年汛期宁蒙段长时间洪水冲刷是造成上述特点的主要因素。河道形态、水文条件、水库调度等也是影响该年度凌情的重要因素。提出了丰水年份汛期利用梯级水库联合调度对黄河宁蒙段进行适当的调水调沙,减轻凌汛压力的建议。
2012~2013年度,黃河寧矇段的凌情特點是流凌、封河早,封河水位低,槽蓄水量大,開河時間早,開河洪峰小等。封河前期氣溫低、開河前期氣溫偏高、2012年汛期寧矇段長時間洪水遲刷是造成上述特點的主要因素。河道形態、水文條件、水庫調度等也是影響該年度凌情的重要因素。提齣瞭豐水年份汛期利用梯級水庫聯閤調度對黃河寧矇段進行適噹的調水調沙,減輕凌汛壓力的建議。
2012~2013년도,황하저몽단적릉정특점시류릉、봉하조,봉하수위저,조축수량대,개하시간조,개하홍봉소등。봉하전기기온저、개하전기기온편고、2012년신기저몽단장시간홍수충쇄시조성상술특점적주요인소。하도형태、수문조건、수고조도등야시영향해년도릉정적중요인소。제출료봉수년빈신기이용제급수고연합조도대황하저몽단진행괄당적조수조사,감경릉신압력적건의。
From 2012-2013, the ice-run situation features of Yellow River Ningmeng section are: the flow-ing ice, the early frozen river, the low water-level of frozen river, the large water-storage of groove, the early open-up-river, the small flood peak of open-up-river and so on. The low temperature of earlier stage of frozen-river, the high temperature of earlier stage of open-up-river, the long-period flood scour of Ning-meng section of 2012 flood season are the main factors of the above features. The riverway form, the hy-drologic condition, the reservoir regulation are also the important factors to influence this year ’s ice-run situation. It is suggestion that the cascade reservoir united dispatch should be used to do proper water and sediment regulation to Yellow River Ningmeng section in ample-waterd year flood season and reduce pres-sure of the ice-run.