土石围堰因其构造简单、施工便捷、工程造价低等特点而应用于水利水电工程。围堰的基础一般为各种沉积地层，在砾卵石和土砂颗粒之间存在彼此连通的孔隙，加之土石围堰自身空隙较大，存在较大的渗流，因此，需要进行防渗处理。控制性灌浆是围堰堵漏防渗行之有效的方法之一，结合新疆伊喀什河水电站基础防渗工程，从方案设计、施工技术、灌浆材料、质量检测评价等方面全面阐述了土石围堰控制性灌浆的防渗处理技术，为类似工程提供参考。

Due to its simple structure, easy construction, and low construction cost, earth-rock cofferdam is extensively used in water resources and hydropower engineering. The basis of cofferdam is usually composed of various sedimentary strata. Pores exist between gravel and sand particle together with the larger interstice in cofferdam itself lead to severe seepage, which consequently requires seepage control treatment. Controlled grouting proves to be one of the effective ways of seepage control. Based on the foundation seepage control project of Xinjiang Yikashi river, this paper expounded the seepage control techniques of controlled grouting for earth  rock cofferdam from the perspective of project design, construction technique, grouting material, and quality assessment, and thus can be taken as a reference for similar projects.