吉林台一级水电站泄洪及引水发电洞混凝土裂缝处理

吉林台一级水电站左岸泄洪、引水发电系统混凝土结构量较大,个别部位混凝土产生了裂缝,通过分析其成因,采取了在入冬前封闭端头避免洞内温度下降和及时调整混凝土配合比等措施,有效防止了后续施工中裂缝的产生,对原来出现的裂缝采用了较先进的灌浆材料和技术及时进行了处理,一年后检查结果表明,效果良好。

The Cause and Treatment of Cracks on the Concrete of Discharging and Power Tunnels of Jilintai-Ⅰ Hydropower Station

The concrete works of left bank flood discharging and power tunnels system of the Jilintai-I Hydroelectric Project have been found suffering cracks.However,further development of cracks on the subsequent works were avoided due to measures taken such as plugging up the tunnel portals before winter sets in to prevent drop of temperatures in the tunnels,the timely adjustment of mix design,grouting of the existing cracks with advanced grout.A year later,inspection showed that these methods had been working well.