抽水蓄能电站沥青混凝土防渗面板裂缝处理及防治措施

施工质量良好、致密的沥青混凝土防渗面板几乎是不漏水的,最易出现面板裂缝和缺陷的时期是蓄水初期,过快的水位上升或下降速率极易引起过大的基础层变形,从而导致面板出现裂缝.地质条件、水库的运行条件、不均匀沉降等均可造成沥青混凝土面板的裂缝,应根据工程的实际条件,并结合裂缝的产状及发展情况,对裂缝的成因进行综合判断,并采取相应的防治措施.沥青混凝土防渗面板的裂缝修补较为复杂,对工程的后期运行影响较大,因此修补措施应根据工程的实际特点及已建工程的裂缝修补经验综合制定.

Crack Treatment and Prevention Measures of Asphalt Concrete Anti-seepage Panel in Pumped Storage Power Station

The asphalt concrete anti-seepage panel with good construction quality and compactness is almost watertight,and the period of panel cracks and defects is the initial stage of water storage.The excessive rise or fall rate of water level is likely to cause excessive deformation of the foundation layer,resulting in cracks in the panel.Geological conditions,reservoir operation conditions,uneven settlement and so on can cause cracks in the asphalt concrete face slab.According to the actual conditions of the project,combined with the occurrence and development of the cracks,the causes of the cracks should be comprehensively judged,and the corresponding prevention and control measures should be taken.The crack repair of asphalt concrete anti-seepage panel is relatively complex,which has a great impact on the later operation of the project.Therefore,the repair measures should be comprehensively formulated according to the actual characteristics of the project and the experience of crack repair of the existing project.