现阶段黄河入海流路输沙动态平衡研究  

Study on Dynamic Balance of Sediment Transported by Present Yellow River Flow Path to the Sea

作　　者：于守兵[1] 王万战[1] 王开荣[1] 茹玉英[1] 

机构地区：[1]黄河水利科学研究院水利部黄河泥沙重点实验室,河南郑州450003

出　　处：《人民黄河》2012年第6期10-12,15,共4页Yellow River

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(HKY-JBYW-2010-14)

摘　　要：根据2001—2010年利津站水文资料和利津以下汛前实测大断面资料,从来水来沙条件、主槽断面面积变化、河底平均高程纵剖面和河长变化等方面分析了现阶段黄河入海清水沟流路年际变化特征。水沙条件分析表明:小浪底水库运用以来进入黄河河口的年水量基本维持在200亿m3左右,年平均沙量为1.77亿t,平均含沙量为9.3 kg/m3。这些相对稳定和有利的水沙系列为清水沟流路实现输沙动态平衡提供了良好的边界条件。2007—2010年的河道主槽断面面积、河底平均高程纵剖面和利津以下河长相对稳定,表明现阶段黄河入海流路在稳定的来水来沙、河道边界和海洋动力条件下基本实现了输沙动态平衡。According to the hydrological data of Lijin Station between 2001 -2010 and field observed cross-section data, interannual change char- aeteristics of Qingshuigou Route had been studied in terms of incoming flow and sediment conditions, main flume area, average river bed elevation longitudinal profile and river length. The results show that annual flow diseharge entering the Yellow River estuary after Xiaolangdi Reservior appli- cation has maintained about 2 x 101~m3 , annual sediment 1.77 x 10s t, total average sediment concentration 9.3 kg/m3 , which are relatively sta- ble and helpful for dynamic balance of sediment transported. Interannual stability of main flume area, average river bed elevation profile and river length since Lijin Station between 2007 -2010 indicates that present Yellow River flow path to the sea has achieved dynamic balance of sediment transported in conditions of incoming flow and sediment, river boundary and ocean dynamics.

关 键 词：入海流路 输沙动态平衡 来水来沙条件 主槽断面面积 纵剖面 黄河 

分 类 号：TV856[水利工程—水利水电工程] TV882.1