斜井井筒涌水特征及注浆治理方法研究  

Water gushing characteristics and grouting treatment method of inclined shaft

作　　者：魏世荣 金祥波 池明波 刘小庆 WEI Shi-rong;JIN Xiang-bo;CHI Ming-bo;LIU Xiao-qing(National Institute of Clean-and-Low-Carbon Energy,Beijing 102209,China;State Key Laboratory of Water Resources Protection and Utilization of Coal Mining,CHN Energy Group,Beijing 102209,China;CHN Energy Shendong Coal Group Co.,Ltd.,Shenmu 719300,China;Geological Survey,Water Prevention and Control Management Department of Wuhai Energy Company,CHN Energy Group,Wuhai 016000,China)

机构地区：[1]北京低碳清洁能源研究院,北京102209 [2]国家能源集团煤炭开采水资源保护与利用国家重点实验室,北京102209 [3]国能神东煤炭集团有限责任公司,陕西神木719300 [4]国家能源集团乌海能源公司地测防治水管理部,内蒙古乌海016000

出　　处：《煤炭工程》2022年第3期62-67,共6页Coal Engineering

摘　　要：为解决骆驼山煤矿斜井井筒形成后井壁涌水治理难题,提出了一种截断井筒涌水补给水源、充填井筒壁后松动圈、提高井筒围岩稳定性的旋喷注浆支护方法。采用旋喷注浆法截断主斜井井筒涌水补给水源,采用壁后注浆技术充填井筒长期涌水携砂所形成的空隙和空洞,加固井筒并进一步封堵井筒涌水;通过水位观测、流场变化分析、钻孔验证和涌水量变化分析等方法对注浆治理效果进行验证。结果表明,旋喷注浆和壁后注浆既可封堵井筒涌水,又能充填加固井筒壁后空隙和空洞,消除井筒后期生产运行期间的安全隐患,对斜井井筒涌水治理具有很好的参考价值。In order to solve the technical problem of water gushing from the shaft wall after the formation of inclined shaft in Luotuoshan Coal Mine,a rotary jet grouting support method is proposed to cut off the supply of water inflow,fill the loose circle behind the shaft wall and improve the surrounding rock stability of the shaft.The water supply source of water gushing in the main inclined shaft is cut off by rotary jet grouting,and the voids and cavities formed by long-term water gushing and sand carrying in the shaft are filled by backfill grouting,so as to strengthen the shaft and further block the water gushing in the shaft.And the grouting treatment effect is verified by means of water level observation in the treatment area,flow field change analysis,borehole verification and water inflow change analysis.The results show that rotary jet grouting and backfill grouting can not only block the water gushing,but also fill and strengthen the voids and cavities behind the shaft wall,to eliminate the potential safety hazards during the later production and operation of the shaft.

关 键 词：斜井井筒 井筒涌水 高压旋喷注浆 壁后注浆 

分 类 号：TD745[矿业工程—矿井通风与安全]