《河南水利与南水北调》2023年第2期农村水利·水电SK水电站表孔溢洪道裂缝处理措施张毅新疆伊犁河水利水电投资开发（集团）有限公司，新疆乌鲁木齐830000摘要：溢洪道是水电站水工建筑物最重要的组成部分，当水库里水位超过安全限度时，水就从溢洪道向下游流出，防止水坝被毁坏。溢洪道担负着电站汛期的泄洪，保卫着大坝和机组发电的安全，其包括：进水渠、控制段、泄槽、出水渠。SK水电站经过多年运行，表孔溢洪道混凝土出现几处裂缝，底板出现多处露筋现象，局部有小的冲槽，致使表面冻融剥蚀较严重且有锈蚀，已对水库运行构成了一定的安全隐患，对其加固修复势在必行。文章介绍了SK工程概况，根据SK水电站表孔溢洪道裂缝，并对混凝土裂缝的处理措施进行了详细阐述，为水电站表孔溢洪道混凝土裂缝处理提供了经验和借鉴。关键词：水电站；表孔；溢洪道；混凝土裂缝；处理措施中图分类号：TV651.1文献标识码：A文章编号：1673-8853（2023）02-0028-04TreatmentMeasuresforSurfaceOutletSpillwayCracksofSKHydropowerStationZHANGYiXinjiangYiliRiverWaterResourcesandHydropowerInvestmentandDevelopment（Group）CO.LTD.,Urumqi830000,ChinaAbstract：Thespillwayisthemostimportantpartofthehydraulicstructuresofthehydropowerstation.Whenthewaterlevelinthereservoirexceedsthesafetylimit,thewaterwillflowfromthespillwaytothedownstreamtopreventthedamfrombeingdamaged.Thespillwayisresponsiblefortheflooddischargeofthepowerstationinthefloodseasonandthesafetyofthedamandthepowergenerationoftheunit,whichincludestheinletchannel,thecontrolsection,thedischargechuteandtheoutletchannel.AfteryearsofoperationofSKhydropowerstation,severalcracksappearedintheconcreteofthespillwayofthesurfaceoutlet,severalexposedbarsappearedinthebottomplate,andsmallgullieswerefoundinsomeparts,resultinginseverefreeze-thawerosionandcorrosiononthesurface,whichhasposedacertainpotentialsafetyhazardtotheoperationofthereservoir,anditsreinforcementandrepairareimperative.ThispaperintroducesthegeneralsituationofSKproject,andexpoundsthetreatmentmeasuresofconcretecracksaccordingtothesurfaceoutletspillwaycracksofSKhydropowerstation,whichprovidesexperienceandreferenceforthetreatmentofconcretecracksofsurface...
