越南冒溪煤矿友谊井－８０ｍ水平巷道在穿过ＦＡ断层的掘进时发生２次涌水冒落事故，最大涌水量为１００～１０５ｍ３／ｈ，产生冒落物１５５０ｍ３，充塞巷道９０ｍ，并造成人员伤亡。中国煤炭科学研究总院专家组采用地面注浆堵水加固技术，运用密集布孔、短段下行式、间歇式、控量注浆等注浆技术，采取长短腿相结合、延长套管，加强关键层位注浆等技术措施，获得了良好的注浆效果，创造了安全通过ＦＡ断层的掘进施工条件 Friendship wells at the exploit coal mine in Vietnam -80m horizontal tunnel occurred two gushing and falling accidents during tunneling through the FA fault. The maximum water inflow was 100 ~ 105m3 / h, resulting in 1550m3 of crashes and stuffing the roadway 90m and causing casualties . China Coal Science and Research Institute of the expert group using ground grouting water plugging reinforcement technology, the use of dense holes, short down, intermittent, grouting and other controlled grouting technology to take the combination of length and short legs, to extend the casing to strengthen Key layer grouting and other technical measures to obtain a good grouting effect, and created a secure FA tunneling construction conditions