破碎围岩预控顶分段嗣后充填技术研究与实践
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摘要
针对破碎围岩稳定性差、深部矿压显现剧烈等难题,结合大尹格庄金矿现有采矿工艺,提出预控顶分段嗣后充填技术。在阐述预控顶分段嗣后充填技术特点、施工工艺、技术关键的基础上,采用正交实验优化充填材料配比,重点采用理论分析和数值模拟相结合的方式优化设计采场结构参数。实践表明,预控顶分段嗣后充填技术在各矿得到广泛应用,效益显著。
In view of the difficulties in the poor stability of the fractured wall rock and the violent strata behaviors,precontrol of roof with sublevel subsequent filling method is proposed based on the existing mining technology in Dayingezhuang Gold Mine.On the basis of technical characteristics,construction technology and key technology,orthogonal experiment is used to optimize the ratio of filling material.Design of stope structural parameters by combining theoretical analysis with numerical simulation is optimized.Practice shows that this technology has been widely used in various mines,significant benefits.
In view of the difficulties in the poor stability of the fractured wall rock and the violent strata behaviors,precontrol of roof with sublevel subsequent filling method is proposed based on the existing mining technology in Dayingezhuang Gold Mine.On the basis of technical characteristics,construction technology and key technology,orthogonal experiment is used to optimize the ratio of filling material.Design of stope structural parameters by combining theoretical analysis with numerical simulation is optimized.Practice shows that this technology has been widely used in various mines,significant benefits.
引文
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[11]肖刚,张君鹏,孙胜.大尹格庄金矿尾砂胶结充填试验研究[J].有色金属(矿山部分),2016,68(6):12-15.
[12]余海华,宋卫东,唐亚男,等.阶段空场嗣后充填法采场结构参数及充填配比的优化[J].矿业研究与开发,2012,32(6):10-14.
[13]闫浩,张吉雄,张升,等.散体充填材料压实力学特性的宏细观研究[J].煤炭学报,2017,42(2):413-420.
[14]冯国瑞,贾学强,郭育霞,等.矸石-废弃混凝土胶结充填材料配比的试验研究[J].采矿与安全工程学报,2016,33(6):1072-1079.
[2]刘晓天,宋卫东,曹帅.不规则矿柱稳定性的Voronoi图解法分析[J].有色金属(矿山部分),2017,69(1):19-23.
[3]刘沐宇.地下采空区矿柱稳定性分析[J].矿冶工程,2000,20(1):19-22.
[4]张君鹏,王启健,夏自锋.大尹格庄金矿深部采场矿柱稳定性分析与参数优化[J].有色金属(矿山部分),2017,69(1):10-13.
[5]尹升华,吴爱祥,李希雯.矿柱稳定性影响因素敏感性正交极差分析[J].煤炭学报,2012:48-52.
[6]李江,姜磊,吴锋,等.大尹格庄金矿深部采场稳定性分析与参数优化[J].黄金,2015,36(4):43-45.
[7]王洋,宋卫东,谭玉叶,等.预控顶分段空场嗣后采场顶板稳定性分析[J].有色金属(矿山部分),2015,67(6):1-5.
[8]李安平,刘洋树,皇甫风成,等.破碎围岩矿体预控顶分段空场嗣后充填法的研究与实践[J].矿业研究与开发,2014,34(1):1-3.
[9]费东.邓代强,姚中亮.哈图金矿深部矿体采矿方法选择的分析[J].采矿技术,2013,13(2):5-6.
[10]李树鹏,姜磊,张君鹏.盘区机械化上向水平分层充填采矿法在大尹格庄金矿的应用[J].黄金,2016,37(8):43-46.
[11]肖刚,张君鹏,孙胜.大尹格庄金矿尾砂胶结充填试验研究[J].有色金属(矿山部分),2016,68(6):12-15.
[12]余海华,宋卫东,唐亚男,等.阶段空场嗣后充填法采场结构参数及充填配比的优化[J].矿业研究与开发,2012,32(6):10-14.
[13]闫浩,张吉雄,张升,等.散体充填材料压实力学特性的宏细观研究[J].煤炭学报,2017,42(2):413-420.
[14]冯国瑞,贾学强,郭育霞,等.矸石-废弃混凝土胶结充填材料配比的试验研究[J].采矿与安全工程学报,2016,33(6):1072-1079.