西藏觉巴水电站沉沙池设计  

The Design of the Desilting Basin of the Jueba Hydropower Plant in Tibet

作　　者：孔伟 

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《云南水力发电》2018年第4期50-54,共5页Yunnan Water Power

摘　　要：介绍西藏觉巴水电站沉沙池设计。觉巴水电站于拦河坝左后侧布置变压式沉沙池,沉沙池设计最小沉降粒径为0.1mm,不小于设计最小沉降粒径的泥沙沉降率为80%～85%。觉巴水电站于2016年1月首台机组正式投入商业运行,至2016年年中3台机组均投入运行。根据电站实际运行操作反馈,该工程沉沙池布置结构合理,运行方便。经过现场沉沙池外观检查及停机后内部检查情况,沉沙池结构稳定,冲沙效果较好,工作状况良好。The paper deals with the design of the desilting basin of the Jueba hydropower plant in Tibet. The Jueba hydropower plant is arranged with a variable pressure desilting basin at the left side of the dam, which is designed for the sediment minimum grain size of 0.1 mm, and the sedimentation rate of the silt with the grain size of not less than the minimum designed sediment grain size is 80%-85%. The first generation unit of the Jueba hydropower plant was put into commercial operation in January, 2016 and all of its 3 generating units were put into commercial operation by the middle of the year 2016 in succession. In accordance with the practical operation of the power plant the desilting basin of the project proved structurally rational and easy to operate. Both exterior and internal inspection of the desilting basin at site and after shutdown of the generation unit indicate that the desilting basin is stable in structure and its operation condition is satisfied and the effect of desilting is good.

关 键 词：觉巴水电站 登曲河 变压式沉沙池 沉降粒径 

分 类 号：TV673.1[水利工程—水利水电工程]