高矿化度矿井水磁化配浆及在巷道过断层中的应用  

Magnetized slurry preparation of high salinity mine water and its application in roadway crossing fault

作　　者：高颖 鲍大忠 赵国杰 薛卫峰 魏巍 马腾飞 GAO Ying;BAO Dazhong;ZHAO Guojie;XUE Weifeng;WEI Wei;MA Tengfei(School of Mines and Civil Engineering,Liupanshui Normal University,Liupanshui 553004,China;Second General Team,Nonferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Liupanshui 553004,China;Chenghe Mining Co.,Ltd.,Weinan 714000,China;Shaanxi Coal and Chemical Technology Institute Co.,Ltd.,Xi'an 710065,China;112 Geological Brigade,Bureau of Geology and Mineral Exploration and Development Guizhou Province,Anshun 561000,China)

机构地区：[1]六盘水师范学院矿业与土木工程学院,贵州六盘水553004 [2]贵州省有色金属和核工业地质勘查局二总队,贵州六盘水553004 [3]澄合矿业有限公司,陕西渭南714000 [4]陕西煤业化工技术研究院有限责任公司,陕西西安710065 [5]贵州省地质矿产勘查开发局112地质大队,贵州安顺561000

出　　处：《中国矿业》2021年第S01期411-414,共4页China Mining Magazine

基　　金：贵州省教育厅青年科技人才成长项目资助(编号:黔教合KY字[2018]386;黔教合KY字[2020]119);六盘水市科技局重点实验室项目资助(编号:52050-2019-05-03);六盘水师范学院重点学科项目资助(编号:LPSSYZDXK201802);六盘水师范学院科学研究项目资助(编号:LPSSY201806)。

摘　　要：为保障构造复杂区大巷安全快速掘进,超前对断层及其破碎带进行注浆加固。通过室内实验研究了高能磁和高矿化度矿井水对黏土、水泥浆液性能的影响。依据钻孔探测结果采用分类注浆技术,对断层及其破碎带进行了实践加固。结果表明:通过高能磁和高矿化度矿井水对浆液改性,可以提高黏土浆液的抗渗性约1个数量级,缩短水泥浆液初凝时间约43min,提高水泥试块抗压强度30.8%~31.1%。对断层破碎区以改性水泥浆液注浆加固为主,对断层相对完整区以改性黏土浆液注浆封堵为主,对断层-巷道交汇区以化学浆液注浆为主的分类注浆技术有效地保障了大巷安全快速通过断层。研究成果为构造复杂矿区巷道过断层提供了借鉴。In order to ensure safe and rapid excavation of roadways in complex structural areas,grouting reinforcement is carried out ahead of time for faults and their fractured zones.The influence of high energy magnetism and high salinity mine water on cement and clay slurry properties has been studied through laboratory experiments.According to the results of borehole detection,the classification grouting technology has been used to reinforce faults and their fractured zones in practice.The results show that modification of slurry by high energy magnetism and high salinity mine water can improve the impermeability of clay slurry by about one order of magnitude,shorten the initial setting time of cement by 43 minutes,and increase the compressive strength of cement by 30.8%-31.1%.Classified grouting technology which includes cement grouting reinforcement in fault fractured area,clay grouting sealing in relatively complete fault area and chemical grouting in intersection area of fault roadway effectively guarantees the safe and rapid passage of roadways through faults.The study provides a reference for roadways crossing faults in complex mining areas.

关 键 词：巷道 断层 黏土浆液 水泥浆液 注浆技术 

分 类 号：TD745[矿业工程—矿井通风与安全]