碳纤维布在青山水库引水隧洞加固中的应用

Application of carbon fiber sheet(CFS) on diversion tunnel reinforcement of Qingshan Reservoir

碳纤维布是利用对混凝土有很强渗透性和足够粘结强度的树脂贴于需要补强的混凝土表面,可以在不增加混凝土构件的自重及尺寸的情况下大幅度提高原构件的承载力及耐久性,恢复原构件的功能。该材料应用在青山水库引水放空隧洞加固工程中,其施工简便,性能可靠,不仅缩短了工期,降低了施工成本,亦达到了较好的加固效果。较详细地介绍了碳纤维布的加固施工过程,其经验可供类似水利工程补强加固借鉴。

Due to the concrete permeability and adequate bond strength of resin,it is used to stick CFR on concrete surface for reinforcement.Without increasing the weight and size of concrete components,the capacity and durability of original components are greatly improved,and the function of original ones is restored.With convenient construction and reliable performance,this kind of material is applied on diversion and emptying tunnel reinforcement of Qingshan Reservoir.As a result,it shortens the construction period,reduces the construction cost,and achieves a better reinforcement effect.Meanwhile,the process of the CFR reinforcement construction is described in detail,and the reinforcement experience has a reference value for similar hydropower projects.