摘要
桩式透水丁坝具有结构简单稳定,施工机械化程度高,运行安全可靠等优点,目前在国内外的实际工程中均有推广应用。针对桩式透水丁坝的透水率、挑角等设计参数进行动床模型试验,运用Surfer 8.0软件绘制了河床地形图,分析了丁坝附近河床形态与冲淤特性,结果表明：①Surfer 8.0软件可以再现河床冲淤地形面貌,清晰直观;②桩式透水丁坝坝基轴线上会出现横向冲槽,威胁丁坝安全,工程设计中应对基础进行加固;③透水率和挑角对河床冲淤特性影响较大,推荐透水率为20%-30%,推荐挑角为45°-90°。
The permeable spur has been used in many projects all over the world.It has advantages like simple and stable structures,high mechanization construction,safe and reliable operation.By changing factors of angles and permeable rates in the movable riverbed model experiments of the permeable spur,the riverbed＇s contour map has been drawn with software Surfer 8.0,river morphology and the scouring and silting characters are analyzed.Results show that first,the riverbed＇s contour is reproduced by Surfer 8.0.Second,a crosswise scour ditch appears in the permeable spur axis,it may be a threat to the dam＇s safety,so the base of permeable spur must be reinforced.Third,the main influencing factors of scouring and silting characters are angles and permeable rates,20%~30% permeable rates and 45°~90°angles are recommended.
出处
《中国农村水利水电》
北大核心
2010年第10期81-84,共4页
China Rural Water and Hydropower
基金
石河子大学高层次人才启动资金专项项目
桩式透水丁坝群水沙运动性能研究(RCZX200937)
