泥沙淤积对平面钢闸门启门力的影响  

Influence of Sedimentation on Lifting Force of Plane Gate

作　　者：杨洲 王远见[2,3] 杨飞 刘彦晖 杨勇 YANG Zhou;WANG Yuanjian;YANG Fei;LIU Yanhui;YANG Yong(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China;Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China;Key Laboratory of Lower Yellow River Channel and Estuary Regulation,MWR,Zhengzhou 450003,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]黄河水利委员会黄河水利科学研究院,河南郑州450003 [3]水利部黄河下游河道与河口治理重点实验室,河南郑州450003

出　　处：《人民黄河》2023年第2期153-157,共5页Yellow River

基　　金：国家重点研发计划项目(2021YFC3200404);国家自然科学基金资助项目(42041004,52179066);河南省自然科学基金资助项目(202300410540)。

摘　　要：闸门前后出现泥沙淤积是多沙河流水库底孔闸门难以提起的主要原因。通过理论分析,建立了考虑泥沙单双面淤积条件的水库平面钢闸门启门力计算公式,表明启门力与泥沙淤积厚度为二次函数关系,且双面淤积条件下启门力将显著增大。通过物理模型试验进一步验证了理论推导结论的合理性,为泥沙淤积条件下平面钢闸门启门力计算提供理论和试验参考。Sedimentation in front and after a reservoir gate is the main reason why it is difficult to lift the gate of the bottom outlet of the sediment-laden river reservoir. In view of the severe challenges in such projects, this study established a formula for calculating the lifting force of a plane gate under the condition of unilateral and bilateral sedimentation through theoretical analysis, indicating that the lifting force and the sediment deposition height were quadratic functions relationship, and the lifting force would increase significantly under the condition of bilateral deposition. The rationality of the theoretical deduction was further verified by a physical model experiment. The results provide an important theoretical and experimental reference for the calculation of the opening force of the plane steel gate under the condition of sedimentation.

关 键 词：水库淤积 启门力 平面钢闸门 泥沙粒径 淤积厚度 

分 类 号：TV663.4[水利工程—水利水电工程]