水力插板透水丁坝在新疆多沙河流上优越性的初步研究

在前人对透水丁坝和水力插板研究的基础上,首次提出将透水丁坝与水力插板技术相结合,形成水力插板透水丁坝新型护岸结构。通过运用计算流体力学(Computational Fluid Dynamics,CFD)软件对水力插板透水丁坝与水力插板实体丁坝、井柱桩透水丁坝的水力特性进行数值模拟比较分析。结果表明:水力插板透水丁坝通过调水调沙的作用在自身防护和保护堤岸两方面均优于水力插板实体丁坝;水力插板透水丁坝比井柱状透水丁坝在缓流促淤、保岸护堤方面效果更好。

Probe on superiority of hydraulic flashboard permeable spur dike in multi sediment river of Xinjiang

On the basis of previous study about spur dike and hydraulic flashboard, the paper combined permeable spur dike with hydraulic flashboard technology to form a new revetment structure of hydraulic flashboard and permeable spur for the first time.Through the use of computational fluid dynamics software,it carried out the numerical simulation on the hydraulic characteristics of hydraulic flapper permeable spur dike and entity dike, permeable spur dike of well piling .The results showed that 1) through the action of water and sediment regulation, hydraulic flashboard permeable spur in the two fields of self protection and embankment protection is superior than hydraulic flashboard entity spur dike; 2) hydraulic flashboard permeable spur dike is superior than well columnar permeable groin in reducing flow velocity, promoting sedimentation , protecting dike and shore areas.