摘要
为消除废弃煤矿诱发透水威胁邻近生产煤矿安全,通过调查淮南老矿区内废弃煤矿与地表水体及邻近生产煤矿的开采空间关系和透水条件,分析总结出废弃煤矿存在裂隙带导通地表水透水、洪水倒灌废弃煤矿透水和老窑水冲破煤岩柱透水3种方式,透水原因为废弃煤矿违规开采,破坏邻近生产煤矿安全煤(岩)柱,形成导水通道,产生储水空间,在地表和地下水的水力作用诱发透水。因此,从生产煤矿的安全保护、监控应急、消除水害3个方面,提出"井下隔离、地面堵排、监控调度、应急处置、水害消除"立体防治废弃煤矿水害技术。实践表明:废弃煤矿水害可以预防和治理,淮南矿区自2007年以来杜绝了废弃煤矿水害事故,取得良好的安全效果。
To eliminate the threat of water disasters from abandoned coal mines to nearby productive coal mines,by investigating the mining spatial relationship between abandoned coal mines,surface water bodies and productive coal mines and occurrence conditions of water inrush in Huainan old mining area,there are three ways of water inrush:surface water inrush through water flowing fractured zone,flood inrush through abandoned mines and goaf water inrush through damaged waterproof coal pillar.The study shows that safety coal(rock)pillars of nearby productive coal mines are destroyed,water inrush channels are formed and water storage space is generated because of illegal mining in abandoned coal mines,resulting in the water inrush under the hydraulic action of the surface and groundwater.Therefore,we proposed that“underground isolation,ground plugging and drainage,monitoring and dispatching,emergency disposal and water hazard elimination”for three-dimensional control water hazards of the abandoned mines from the three aspects of productive coal mine safety protection,monitoring and emergency response and eliminating water hazard.The engineering practice shows that the water disasters of abandoned coal mines can be prevented and treated.They have been eliminated and good safety effect has been obtained in Huainan Mining Area since 2007.
作者
李琰庆
赵华杰
夏抗生
LI Yanqing;ZHAO Huajie;XIA Kangsheng(Huainan Mining(Group)Corporation Limited,Huainan 232001,China;National Engineering&Technology Academy for Coal Mining,Huainan 232001,China;Xingzhi College,Xi’an University of Finance and Economics,Xi’an 710038,China)
出处
《煤矿安全》
CAS
北大核心
2020年第6期87-92,共6页
Safety in Coal Mines
基金
安徽省科技重大专项资助项目(17030901023)。
关键词
废弃煤矿
透水机理
导水通道
立体防治
水灾消除
abandoned coal mine
water inrush mechanism
water inrush channel
three-dimensional control
water disaster elimination
