沙湖泵站经多年运行,混凝土结构产生裂缝,其中有贯穿性裂缝和沉降缝,同时导致结构出现渗漏。裂 缝 的产 生,降低 了建筑物的抗渗能力 ,使 混凝土碳化 ,引起钢筋锈蚀 ,降低 材料耐久性 ,影响建 筑结构承载 力和使用 功能。对于影响结构稳定性的裂缝,进行灌浆加固处理;对于表面裂缝,采取表面修补法。沙湖泵站经处理后,投 入使 用运行正常 ,表明工程所选用材料及工 艺可靠,技 术处理措 施可行 。本文详细介绍 了裂缝修补 的处理方 法、材 料选择及施工工 艺要 点。 【关键词】 泵站;裂缝;处理技术 中图分类号:TV675 文献标志码 :B 文章编号 :1005-4774(2015)12-0013-03 Handlingmethod ofconcretestructurecrack repairinShahu PumpingStation YIN Kewen (HunanJianghaiScienceandTechnologyDevelopmentCo.,Ltd.,Kunming650000,China) Abstract:Shahu Pumping Station is operated for many years. Cracks are produced on concrete structure, including perfoliatecrackandsettlementjoint.Meanwhile,leakageisproducedonstructure.Cracksreducepermeabilityresistance 0fthebuilding.Concreteiscarbonated.therebyleadingtosteelbarcorrosion,reducing materialdurability,and affecting buildingstructure bearing capacity and using function. Cracks affecting structure stability are treated by grouting and reinforcement,and surface repairmethod is adopted on surface crack. AfterShahu Pumping Station isprocessed, itis operatednormallyafterbeingused.Itisobviousthatthematerialsand processintheprojectarereliableandtechnology processingmeasuresarefeasible.Inthepaper,processingmethod ofrepairingcracks,materialsselectionandconstruction processkeysareintroducedin detail. Key words:pumpingstation;cracks;processingtechnology
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