CAJ | 학술논문

通过对黄河宁夏河段河道演变的分析，研究了宁夏河段河道冲淤及河势变化情况。结果表明：1993-2009年，黄河宁夏段下河沿至青铜峡河段河道多年平均冲淤平衡，青铜峡至石嘴山河段河道呈淤积状态。宁夏河段河道的冲淤变化主要取决于来水来沙条件，1986年以后汛期水少沙多，泥沙全部淤积在河道主河槽内，主槽淤积萎缩，中小洪水水位明显抬高。宁夏峡谷河段及卵石河床冲淤变化及主流摆幅较小，其余河段河床冲淤变化及主流摆幅较大。河道整治工程的实施对控制河势变化有积极作用。黄河宁夏段水沙条件、河道边界条件及河床质地是影响河道演变的本质原因。
통과대황하저하하단하도연변적분석，연구료저하하단하도충어급하세변화정황。결과표명：1993-2009년，황하저하단하하연지청동협하단하도다년평균충어평형，청동협지석취산하단하도정어적상태。저하하단하도적충어변화주요취결우래수래사조건，1986년이후신기수소사다，니사전부어적재하도주하조내，주조어적위축，중소홍수수위명현태고。저하협곡하단급란석하상충어변화급주류파폭교소，기여하단하상충어변화급주류파폭교대。하도정치공정적실시대공제하세변화유적겁작용。황하저하단수사조건、하도변계조건급하상질지시영향하도연변적본질원인。
Through the analysis of Ningxia reaches of the channel evolution of the Yellow River,it researched on the erosion and scour and river re-gime changes of the river section in Ningxia. The results show that in the period of 1993-2009,in Ningxia section of the Yellow River Xiaheyan to Qingtongxia river channel erosion and deposition of average balance to Qingtongxia to Shizuishan reach of the river is in silting status. Ningxia section of river channel scouring and silting variation depend largely on the conditions of water and sediment,water and sediment and flood in,full of sediment siltation in the river main channel within the main channel siltation shrink,small and medium water level significantly inflated. River in Ningxia section of the Yellow River canyon and pebble river bed scour and less mainstream swing,the rest of river beds scour and mainstream swing are greater. The implementation of river training works on the controlling river regime changes has an effect. Ningxia section of the Yellow River water and sediment conditions,river boundary condition and river bed texture are the causes to influence the channel evolution.