东溪口新开卵石航槽的稳定性分析  

Stability analysis of Dong Xikou newly opened gravel channel

作　　者：廖江花[1,2] 陈玉丹[1,2] 陈杏文[1,2] 李沛霖[1,2] LIAO Jiang-hua CHEN Yu-dan CHEN Xing-wen LI Pei-lin(Key Laboratory of Hydraulic and Waterway Engineering of Ministry of Education, Chongqing Jiaotong University, Chongqing 400074,China National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiootong University, Chongqing 400074,China)

机构地区：[1]重庆交通大学水利水运工程教育部重点实验室,重庆400074 [2]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074

出　　处：《水科学与工程技术》2017年第1期82-85,共4页Water Sciences and Engineering Technology

摘　　要：以动床模型试验为手段,结合理论分析,就东溪口整治河段的卵石推移质输移运动规律、推移质输沙带的底流特性、挖槽区的输沙能力进行研究,通过河床的自动塑造来预测挖槽区的冲淤演变趋势。研究结果表明:上游来沙基本淤积在航槽进口段,航槽中、下段基本稳定,无明显淤积。建议在航槽进口段预留足够的备淤深度。Dong Xikou newly opened gravel channel is bending and long, upstream and downstream gravel movement of the regulation river reach is violently, which will have an impact on the stability of new sail channel. This paper adopt the movable bed model and theoretical analysis to research the transport （behavior） of gravel bedload in regulation river reach of Dong Xikou to study the bottom flow characteristics in the sediment deposition area, and to calculate the sediment transporting capacity of left channel. By using automatic shaping method for predicting the riverbed dredged channel erosion and deposition evolution trend. The research indicates that upstream sediments mainly deposit in the import area of the channel, there are no obvious siltation in the middle and export of the channel, and these parts of channel basic remain stable. So the sufficient deposition depth is recommended in the inlet section of the channel.

关 键 词：动床模型试验 底流特性 卵石输移特性 航槽稳定性 

分 类 号：TV142[水利工程—水力学及河流动力学]