关键词: 构造裂隙大水矿床, 帷幕注浆试验, 注浆参数

Abstract: Due to the complex aquifer-medium among structural fissured water-rich deposits，there are great difficulties in construction and high risk of water gushing-out，so it is hard to realize the water prevention and control.As a reference from the water control experiences of water-rich deposit in karst，the curtain grouting technology for water control at the surface of mine is adopted to treat the groundwater disaster in fissured water-rich deposit at tectonic volcanic rocks in Huangtun pyrites.According to the full-scale test of curtain grouting，and through analyzing water permeability of curtain-grouting before and after grouting，the water pressure test，the drilling core exposure before and after grouting，it is proved that after the high-pressure grout injection for fractured formation in volcanic rocks，water-conducting channel with large structure and micro-fractures can be effectively filled，with remarkable grouting effect.So，this method can be as a reference for the same type of deposit.

Key words: Tectonic fissured water-rich deposit, Curtain grouting test, Grouting parameter