黄河下游滩区放淤及低洼地改造对河道的影响  

Effect of Floodplain Warping and Lowland Regulation on Channel Deposition Reduction in the Lower Yellow River

作　　者：李庆国[1] 靖娟[1] 刘娟[1] 吴默溪 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003 [2]华北水利水电大学,河南郑州450011

出　　处：《人民黄河》2013年第10期78-79,共2页Yellow River

基　　金：水利部公益性行业科研专项(201001012)

摘　　要：介绍了黄河下游滩区放淤及背河低洼地改造模式及实施方案，利用实测资料和已有成果计算分析了引洪放淤和机械放淤对下游河道的减淤效果。结果表明，滩区放淤及背河低洼地改造共能处理利用黄河泥沙24.52亿 t，能使下游河槽减淤31.90亿～38.54亿 t。同时，挖河还能够增大河槽的过流能力，如果有针对性地选择卡口河段实施挖河，则对增大主河槽过流能力的效果会更好。This paper introduced the modes and application scheme of floodplain warping and lowland regulation on channel deposition reduction in the lower Yellow River, and analyzed the effect of flood diversion warping and mechanical silting on sedimentation reduction of the downstream channels using measured data and current achievements. The results show that the sediment disposal ability of floodplain warping and lowland regu- lation can reach to 2. 452 billion tons, which will reduce sedimentation deposition of 3. 190 -3. 854 billion tons in the Lower Yellow River chan- nels. Meanwhile, dredging riverbed can enlarge the flood carrying capacity. If the dredging is conducted at the bottle-neck reaches, better effect of the flood carrying capacity in the main channel can be achieved.

关 键 词：滩区放淤 低洼地改造 河道减淤 黄河下游 

分 类 号：TV853[水利工程—水利水电工程] TV882.1