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宝珠寺电站大坝河床１４号～２０号坝段，由于基础地质条件复杂，在固结、帷幕灌浆后，坝基下仍存在涌水现象。为提高幕体的防渗作用，在原帷幕前增加了一排细水泥灌浆，效果显著。在钻灌过程中发现，岩体中存在较大漏灌裂隙和涌水现象，并多分布在Ｆ４断层带处。如不采取这次补强措施，确实存在降低幕体防渗功能，在高水头长期作用下，引起断层破碎带及软弱夹层产生管涌和集中渗漏途径的可能性。根据这种情况，结合１４号～２０号坝段及其相邻坝段的基础地质条件和灌浆施工中出现的问题，建议先在部分坝段增设细水泥灌浆，以达到提高幕体厚度和防渗的能力，从而有效地降低坝基扬压力，确保大坝稳定安全运行。
Due to the complex geological conditions, dam foundation of Baozhusi Dam dambed bed No. 14 to No. 20 has the phenomenon of gushing water under the dam foundation after consolidation and curtain grouting. In order to improve the seepage control effect of the curtain body, a row of fine cement grouting was added in front of the original curtain, the effect is remarkable. During the drilling process, it is found that there is a large leakage and fissure and gushing water phenomenon in the rock mass, and are distributed in the F4 fault zone. If this reinforcement measure is not taken, there is a real possibility of reducing the seepage prevention function of the curtain body and causing the pipe burst and the concentrated seepage path under the action of high water head for a long time. According to this situation, combined with the basic geological conditions of the 14th ~ 20th dam sections and adjacent dam sections and the problems in the grouting construction, it is suggested to add fine cement grouting to some dam sections in order to improve the thickness of the curtain body and prevent Seepage capacity, thereby effectively reducing the pressure of the dam foundation to ensure the stable and safe operation of the dam.