水电站大坝趾板防渗加固帷幕灌浆施工技术应用研究

Application Research on Grouting Construction Technology for Anti-seepage Reinforcement of Dam Toe Slab and Curtain Grouting of Hydropower Station

随着水电站大坝运行时间的延长和复杂水文地质条件的影响,传统的趾板防渗措施已经无法满足现代水电站大坝的安全运行需求。综述了水电站大坝趾板防渗加固帷幕灌浆的技术优势,详细阐述了该技术的具体应用过程,其中包括施工准备、钻孔、灌浆、压水试验以及安全措施等关键步骤。通过上述措施显著提升了水电站大坝趾板防渗性能,并确保了大坝的结构安全和运行稳定,为解决水电站大坝维护和加固工作提供了理论依据和实践参考。

With the prolonged operation time of hydropower dams and the influence of complex hydrogeological conditions,traditional toe board anti-seepage measures are no longer able to meet the safety operation requirements of modern hydropower dams.To solve this problem,this article summarizes the technical advantages of anti-seepage reinforcement curtain grouting for the toe slab of hydropower dams,and elaborates on the specific application process of this technology,including key steps such as construction preparation,drilling,grouting,water pressure testing,and safety measures.The above measures have significantly improved the anti-seepage performance of the dam toe slab of the hydropower station,and ensured the structural safety and stable operation of the dam,providing practical reference for relevant personnel in the maintenance and reinforcement work of the hydropower station dam.