黄河宁夏卫宁段河道整治工程典型坝垛关键参数试验研究  

Experimental Study on Key Parameters of Typical Dams of Weining Section River Slope Regulation Project of the Yellow River

作　　者：岳志春 马晓阳 姚文武 Yue Zhichun;Ma Xiaoyang;Yao Wenwu(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China;Flood Control and Drought Relief Headquarters Office of Ningxia,Yinchuan 750001,China;Ningxia Qixingqu Management Office,Zhongwei 755100,China)

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072 [2]宁夏防汛抗旱指挥部办公室,宁夏银川750001 [3]宁夏七星渠管理处,宁夏中卫755100

出　　处：《宁夏大学学报（自然科学版）》2019年第4期344-350,共7页Journal of Ningxia University(Natural Science Edition)

基　　金：国家重点研发计划基金资助项目(52017YFC0405601)

摘　　要：以实际地形、地貌及河道整治工程为基础,以黄河宁夏卫宁段河道整治工程典型坝垛为例,对该段的根石材料、深度、坡度、护根顶宽等进行分析.结果表明,在黄河宁夏卫宁段,人字垛根石材料中四脚体与散抛石的体积比为7∶3时,坝体稳定性最好.用“金包银”分区抛投与“汉堡包”层叠抛投相结合的抛投方式,以中等水流流量控制,根石稳定坡度系数推荐为1.35~1.62,根石动水安全坡度系数为0.91~1.32,静水休止角为0.82.The article analyzes the rootstone material,depth,slope,protection top width of Ningxia Weining section river course of the Yellow River by taking its typical dam stacking in river regulation project as the example on the basis of actual topography and landform,and river regulation project.The result shows that,the dam stability performs well when the volume ratio of tetrapods to loose stones is 7∶3 of the herringbone dam root stone material in Weining section of the Yellow River.Under the circumstances of root stone throwing method of combing“silver in gold”partition throw with“hamburger”stacked throwing and the regulation control of flow in water,the slope of root stone stable is recommended at 1.32~1.62,and the safety slope coefficient for root stone moving water is 0.91~1.32 with 0.82 for still water.

关 键 词：黄河宁夏卫宁段 河道整治工程 坝垛 

分 类 号：TV882.1[水利工程—水利水电工程] TV85