Abstract:  Curtain grouting is the most common and effective method for mine water disaster control athome and abroad , and it is a more mature technology. With the progress of science and technology , thekey technologies such as grouting drilling technology , slunry ratio , curtain deformation monitoring, real.time automatic monitoring of mine hydrogeological information and so on have made great progress andoreakthroughs. lt is urgent to sum up the successful experience in this field and enrich the connotation ofthe traditional technology of curtain grouting for water control. Maoping lead-Zinc Mine is the first bigwater mine in Yunnan province to achieve remarkable results by using curtain grouting water controlscheme. Taking the curtain grouting water control project of Maoping lead-Zinc Mine in Yiliang as an ex.ample , on the basis of analysis and study of mine hydrogeological conditions , the construction conditionsand grouting technology of curtain grouting in Maoping lead-Zinc Mine are introduced, and the qualita.tive and quantitative evaluation methods of curtain quality and water plugging effect are summarized. Thenew technology and method used in grouting curtain water control project are refined.

Key words: hydrogeological conditions, grouting technology, curtain quality, water plugging effect