大水铁矿防治水工作总结
徐楼铁矿采用井下帷幕注浆法防治岩溶裂隙水。经过两年时间,已经初见成效。在实施防治水工程过程中,并非理想化,而是根据生产需要适时调整,取得了一些宝贵经验,这些经验对今后防治水有重要指导作用,对类似矿山也有借鉴意义。
【关键词】岩溶裂隙水;井下帷幕注浆;经验Sket hup the flood prevention ork smin the iron Lan Zhong-ping
【Abstrat】Underground Grout urtain is used for ontrol of the Karst ground ater in XULOU iron ore.after to ears have begun to deliver results.in implementing the ater projet,not to idealize,but aording to the need for timel and made some valuable experiene,the experiene in the prevention and ontrol of ater is important for guiding role,similar to mine.there are also using.【Ke ords】Karst ground ater;Underground Grout urtain;Experiene.
1.矿井概况徐楼铁矿为一接触交代型矽卡岩磁铁矿床,是一座水文地质条件极其复杂的大水地下矿山。矿井全区包括石楼、双庄、史小楼三个矿床,目前开采石楼矿床一矿带。矿山采用竖井侧翼式开拓,上向水平分层胶结充填法和嗣后充填房柱法开采矿体的联合开采方法。地质水文状况石楼矿床矿体埋深48~385m,厚20-35米,埋深48~56m,走向长500m,呈透镜体,产状平缓。矿体上盘及四周围岩均为厚度大的中奥陶系灰岩、大理岩强含水层,风化严重,岩溶裂隙发育,裂隙交错成网状,富水性较强。矿体下盘为闪长岩,为隔水层。见图1。矿区地质老钻孔
封孔质量差,第四系砂层中孔隙水及大理岩含水层裂隙岩溶承
大水铁矿防治水工作总结 来自淘豆网m.daumloan.com转载请标明出处.