黄河下游畸形河势成因及治理对策  

Causes of Irregular Channel Regime and Countermeasures in the Lower Yellow River

作　　者：牛玉国[1] 端木礼明[1] 周念斌[1] 曹克军[1] 

机构地区：[1]河南黄河河务局,河南郑州450003

出　　处：《人民黄河》2013年第8期1-2,9,共3页Yellow River

摘　　要：利用以往观测资料分析了黄河下游畸形河势的主要特点及危害,并对畸形河势的成因及治理对策进行了分析。研究表明:黄河下游产生畸形河势的主要原因包括下游河道河槽宽、横比降较大,小浪底水库小流量、长历时、均匀下泄清水,两岸滩地抗冲刷能力弱等;治理对策主要包括加强对畸形河势演变机理及成因分析、制定科学合理的抢护方案、抢修临时防护工程、利用新结构坝型对畸形河势进行调整和抢护、利用水库调控流量及含沙量等。Based on previous data, this paper analyzed the main characteristics, harmful effects, causes and countermeasures of deformed river channel in the Lower Yellow River. The results show that the river channel width, larger transverse slope, low flow, long-lasting and uniform dis- charged water of Xiaolangdi Reservoir, weak anti-scouring ability on the both sides of the river will affect the abnormal formation of the channel in the lower Yellow River. A series of accessible countermeasures are proposed which include strengthening the deformity of river evolution mechanism and causes analysis, preparation of scientific and rational rescue and protection schemes, rush repair temporary protection works, using of new structural malformations dam on the river regime to adjust and rescue emergency and regulating the flow and sediment of reservoir and so on.

关 键 词：河道演变 河道整治 畸形河势 黄河下游 

分 类 号：TV853[水利工程—水利水电工程] TV882.1