水资源与水工程学报2016，Vol.27Issue(6)：125-129,5.DOI:10.11705/j.issn.1672-643X.2016.06.22
潼关高程变化及其对渭河下游的影响分析
Change of Tongguan elevation and its influence on the lower reaches of Weihe River
摘要
Abstract
The relationship between the changes of Tongguan elevation and the sediment deposition in the lower reaches of Weihe river since the establishment of Sanmenxia reservoir indicates that: there was a declining trend in tongguan elevation since the flood season in 2002 , the elevation of tongguan was 327 . 63 m after the flood season in 2015, it was still on the high side. Tongguan elevation changes are closely associated with the sediment deposition in lower reaches of Weihe river, the deposition caused by the beach groove profile adjustment under the lifting of Tongguan elevation accounts for about 78 . 3% of sedi-mentation in the lower reaches of Weihe river from 1971 to 2003 , this was the most important influencing factors for serious silting in lower reaches of Weihe river. The correlation between tongguan elevation and accumulative deposition in the lower reaches of Weihe river was obviously weak from 2003 to 2015 . How-ever, the amount of sediment deposition in the lower reaches of Weihe was still significantly increased or decreased with the increase or decrease of Tongguan elevation. Massive deposition had gradually evolved into the ground“suspended river” in the lower reaches of the Weihe River. It fundamentally changed the situation of flood control and drainage at Weihe River downstream, and had a serious impact on the re-gional economic and social development. Comprehensive measures should be taken to control the Tong-guan elevation below the level of 325. 60-325. 69 m, which aims to reduce the sediment deposition, im-prove the conditions of river flood, decrease the coastal flood disaster risk, and provide a safe environ-ment for the regional development.关键词
潼关高程/冲淤影响/悬河/渭河下游Key words
Tongguan elevation/impact of erosion and deposition/suspended river/lower reaches of Weihe River分类
建筑与水利引用本文复制引用
石长伟,张智,王亚梅,刘俊..潼关高程变化及其对渭河下游的影响分析[J].水资源与水工程学报,2016,27(6):125-129,5.基金项目
陕西省科技发展(攻关)计划(软科学研究)项目(2014KRM87) （攻关）
水利部公益性行业科研专项项目(201101044) （201101044）
陕西省自然科学基础研究计划面上项目(2014JM7281) （2014JM7281）
陕西省水利科技计划项目(2013slkj-24、2014slkj-01) （2013slkj-24、2014slkj-01）
