深部开采底板奥灰突水水害防治的实践  

Practice on Prevention and Control of Floor Ordovician Karst Water Inrush in Deep Mining

作　　者：连志远 Lian Zhiyuan(Wanjinwan Hulonggou Coal Industry Co.,Ltd.,Jinneng Holding Group.,Shuozhou,Shanxi 038300)

机构地区：[1]晋能控股集团挖金湾虎龙沟煤业有限公司,山西朔州038300

出　　处：《江西煤炭科技》2024年第2期112-114,118,共4页Jiangxi Coal Science & Technology

摘　　要：针对虎龙沟煤业煤矿开采时底板奥灰水突水危害,提出了钻探揭露、注浆改造的治理方案。根据奥灰水突水特点,以及空洞和裂隙受注介质的特点,设计奥灰含水层为注浆目标层,注浆时首先用比重1.5的稠浆低压充填,再用比重1.2的稀浆高压补充。通过工程应用,发现工作面奥灰平均单位吸水率由0.003L/min.m.m降至0.0009L/min.m.m,突水区域出水量减少74%。In view of the hazards of floor Ordovician Karst water inrush during mining in Hulonggou Coal Industry Co.,Ltd.,the paper presents the control scheme with dilling exposure and grouting reconstruction,in which 1.5-specific-gravity viscous slurry is applied to low-pressure packing in Ordovician Karst water layer-the targeted layer together with high-pressure supplement with 1.2-specific-gravity slurry,reducing the average unit water absorption of Ordovician Karst water from 0.003 L/min.m.m to 0.0009 L/min.m.m,water yield in water-inrush area by 74%.

关 键 词：深部开采 奥灰突水 注浆改造 

分 类 号：TD745.2[矿业工程—矿井通风与安全]