跋山水库放水洞经过40年的运行,存在进口段、斜坡段及闸墩钢筋混凝土老损碳化、剥落,衬管裂缝漏水,闸门老化锈蚀、面板变形等问题。本文针对工程存在的问题,提出了组合技术加固措施,并详细阐述了施工技术。从多年来的运行状况来看,加固处理技术可靠,效果显著。 After 40 years of operation, the diversion tunnel in the Bashan reservoir has existed such problems as old carbonation, spalling, leakage of liner cracks, gate rusting and panel deformation in the import section, slope section and pier concrete. In this paper, according to the existing problems of the project, a combination of reinforcement measures are proposed, and the construction technology is elaborated. From the operating conditions over the years, reinforcement technology is reliable, the effect is significant.