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金属矿山 ›› 2016, Vol. 45 ›› Issue (06): 14-18.

• 采矿工程 • 上一篇    下一篇

夏甸金矿深部矿体预切顶灾害隔离开采技术研究

王金波1,何少博1,饶运章2,周东良1,邓红卫3,王炳文4   

  1. 1.招金矿业股份有限公司夏甸金矿,山东 招远 265400;2.江西理工大学资源与环境工程学院,江西 赣州 341000;3.中南大学资源与安全工程学院,湖南 长沙 410012;4.中国矿业大学(北京)资源与安全工程学院,北京100083
  • 出版日期:2016-06-15 发布日期:2016-08-19
  • 基金资助:

    * 国土资源部财政部山东黄金资源综合利用示范基地建设项目(编号:国土资厅函[2012]1445号)。

Study on Mining Technology of Pre-truncating Crest Disaster Isolation for Deep Orebody in Xiadian Gold Mine

Wang Jinbo1,He Shaobo1,Rao Yunzhang2,Zhou Dongliang1,Deng Hongwei3,Wang Bingwen4   

  1. 1.Xiadian Gold Mine,Zhaojin Mining Industry Co.,Ltd,Zhaoyuan 265400,China;2.School of Resources and Environment Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;3.School of Resources and Safety Engineering,Central South University,Changsha 410012,China;4.School of Resources and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China
  • Online:2016-06-15 Published:2016-08-19

摘要: 针对夏甸金矿由于深部倾斜厚矿体上盘存在断层泥,导致现阶段使用的无底柱分段崩落法出现损失贫化率高和地表保护难等主要问题,结合矿山开采技术条件及矿山现状,提出预切顶灾害隔离开采试验方案。在采场中先回采上盘三角矿体,之后高浓度高灰砂比分级尾砂胶结充填采空区,隔离上盘稳定性差的断层泥灾害体。在矿块中先采矿柱,采用高强度胶结充填;后采矿房,采用低强度或水砂充填。试验结果表明:该方案能较好控制地压,降低损失贫化,提高生产能力,实现深部矿体安全、高效、经济开采目标。

关键词: 采矿方法, 深部开采, 预切顶, 灾害隔离

Abstract: Aimed at mining conditions that the hanging wall of inclined thick deep orebody is existing fault gouge in Xiadian Gold Mine,now the main problems of high loss and dilution rate and hard surface protection were appeared with sublevel caving method used.The combination of present situation and mining conditions,the test scheme of pre-truncating crest disaster isolation mining was proposed.In the stope,the triangle ore of hanging wall was mined at first.Then the goaf was filled with high concentration and high cement-sand ratio of classified tailings to isolate the disaster body at hanging wall with poor stability.In the ore block,the pillar was mined in advance,and the goaf was filled by high strength cemented tailings.Then the room was mined,and filled by low strength cemented tailing or hydraulic sands.The tests has indicated that the scheme can better control ground pressure,decrease the loss and dilution of ore,and increase the production capability to achieve the targets of safety,efficiency and low costs in mining of deep orebody.

Key words: Mining method, Deep mining, Pre-truncating crest, Disaster isolation