五莲石亩子水库在原放水洞封堵截渗过程中仍承担着防洪、灌溉、养鱼、城市供水等多项任务,库水位与原放水洞进口高程相差4.5米,给放水洞封堵截渗带来了一定的困难。本文结合水玻璃水泥浆在原放水洞进口段封堵截渗加固中的应用,对放水洞病害成因及加固方案进行了分析确定,并对各施工工艺进行了阐述。 Wulian Shi Muzi Reservoir in the original water diversion tunnel plugging still bear the flood control, irrigation, fish farming, urban water supply and many other tasks, the reservoir water level and the original dive hole import elevation of 4.5 meters, Some difficulties come. In this paper, the application of water glass grouting in the plugging reinforcement of the inlet section of the original diversion tunnel was analyzed, the cause of formation and reinforcement scheme of the diversion tunnel were analyzed and confirmed, and the construction techniques were described.