九仗沟金矿采场岩体稳定性分析及参数优化
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摘要
为了研究采场稳定性分析方法与参数优化方法,对嵩县山金矿业有限公司九仗沟金矿试验采场进行了工程地质调查、数字摄影、矿岩力学试验等工作,获取了表征矿山岩体质量的多种指标。利用三维数字摄影测量系统(ShapeMetrix~(3D))对九仗沟金矿100中段进路采场岩体进行现场节理信息采集,分析得到采场岩体结构面产状、节理间距、节理组数、结构面体密度等参数。在此基础上,结合钻孔窥视及岩石力学试验数据信息,采用岩体地质力学分类(RMR)和巴顿岩体质量(Q)分类方法对采场岩体稳定性进行分级。根据获取的指标,利用Mathews图表法对试验采场的跨度进行优化设计,分析认为实际生产中应严格将进路采场跨度控制在7. 5 m以下,以保证进路采场稳定性。
In order to study the stability analysis method and parameter optimization for the upward drift stope,several indexes representing the engineering quality of rock mass in mines were acquired by the survey of engineering geology,digital photographic,the ore-bearing rock mechanics experiments etc in Jiuzhanggou gold mine. The 3 D digital measurement system( ShapeMetrix~(3D)) is employed to survey and collect the digital information of the plane parameters of rockmass structures that including rock mass occurrence,joint spacing,joint set numbers,volume density of structural plane for 100 m stope at Jiuzhanggou gold mine. Based on the digital joint structure characteristics,the RMR system and Q-system are employed to analyze and classify the stability of stope rockmass,incorperating with drilling peep results and rock mechanics parameters. According to the acquired indexes,the current span of the testing stope is optimized by using the Mathews stability graph method. It is concluded that the span of the stope should be strictly controlled below 7. 5 m in order to ensure the stability of stope.
In order to study the stability analysis method and parameter optimization for the upward drift stope,several indexes representing the engineering quality of rock mass in mines were acquired by the survey of engineering geology,digital photographic,the ore-bearing rock mechanics experiments etc in Jiuzhanggou gold mine. The 3 D digital measurement system( ShapeMetrix~(3D)) is employed to survey and collect the digital information of the plane parameters of rockmass structures that including rock mass occurrence,joint spacing,joint set numbers,volume density of structural plane for 100 m stope at Jiuzhanggou gold mine. Based on the digital joint structure characteristics,the RMR system and Q-system are employed to analyze and classify the stability of stope rockmass,incorperating with drilling peep results and rock mechanics parameters. According to the acquired indexes,the current span of the testing stope is optimized by using the Mathews stability graph method. It is concluded that the span of the stope should be strictly controlled below 7. 5 m in order to ensure the stability of stope.
引文
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[14]奥地利Startup公司. Shape MetriX3D系统使用手册[R].沈阳:欧美大地仪器设备中国有限公司,2008.
[15]牟宗龙,窦林名,张广文,等.坚硬顶板型冲击矿压灾害防治研究来源[J].中国矿业大学学报,2006,35(6):737-741.Mu Zonglong,Dou Linming,Zhang Guangwen,et al. Study of prevention methods of rock burst disaster caused by hard rock roof.[J]. Journal of China University of Mining&Technology,2006,35(6):737-741.
[16]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.
[17]罗淦华,吴爱祥.基于Mathews稳定图法的采场结构参数确定[J].金属矿山,2017(2):31-35.Luo Ganhua,Wu Aixiang. Stope dimension determination based on Mathews stability diagram method[J].Metal Mine,2017(2):31-35.
[18] Potvin Y. Empirical open stope design in Canada[D].Vancouver:The University of British Columbia,1988.
[19] Stewart S B V,Forsyth W W. The Mathews method for open stope design[J]. CIM Bulletin,1995,88(1):45-53.
[2]卢央泽,苏建军,李晓芸.深部破碎带矿体顶板冒落防治技术[J].采矿与安全工程学报,2009,26(1):60-64.Lu Yangze,Su Jianjun,Li Xiaoyun. Prevention measures for roof caving in orebody of deep broken zone[J].Journal of Mining&Safety Engineering 2009,26(1):60-64.
[3]赵兴东,刘杰,张洪训,等.基于摄影测量的岩体结构面数字识别及采场稳定性分级[J].采矿与安全工程学报,2014,31(1):127-133.Zhao Xingdong,Liu Jie,Zhang Hongxun,et al. Rockmass structural plane digital recognition and stope stability classification based on the photographic surveying method.[J]. Journal of Mining&Safety Engineering,2014,31(1):127-133.
[4]王金波,周靖人,赵永,等.采场稳定性分析与参数优化的图表法[J].金属矿山,2016(5):187-191.Wang Jinbo,Zhou Jingren,Zhou Yong,et al. The graph method for stability analysis of stope and parameter optimization[J]. Metal Mine,2016(5):187-191.
[5]董金奎,冯夏庭,张希巍,等.地下采场破碎岩体稳定性评价与参数优化[J].东北大学学报:自然科学版,2013,34(9):1322-1326.Dong Jinkui,Feng Xiating,Zhang Xiwei,et al. Stability evaluation and parameter optimization on the fractured rock mass around underground stope[J]. Journal of Northeastern University:Natural Science,2013,34(9):1322-1326.
[6] Barton N,Lien. R,Lunde J. Engineering classifications of rock masses for the design of tunnel support[J]. Rock Mechanics,1974,6(6):189-236.
[7] Bieniawski Z T. Geomechanics classification of rockmass and its application in tunneling[C]//Proceedings of3th International Congress on Rock Mechanics. Denver:[s. n.],1974:27-32.
[8] Mathews K,Hock E,Wyllie D,et al. Prediction of stable excavations for mining at depths below 1000 metres in hard rock[R]. Ottawa:Natural Resources Canada,1980.
[9]刘冬,金长宇,夏自锋,等.焦家金矿破碎矿体采场进路的跨度优化研究[J].金属矿山,2014(2):18-21.Liu Dong,Jin Changyu,Xia Zifeng,et al. Research on the stope span optimization of Jiaojia gold mine with fractured rock mass[J]. Metal Mine,2014(2):18-21.
[10]刘培正,张传信,胡永泉,等.厚大矿体分段空场嗣后充填采场结构参数优化研究[J].金属矿山,2009(11):16-19.Liu Peizheng,Zhang Chuanxin,Hu Yongquan,et al.Research on the optimization of structural parameters for heavy ore-body by sublevel open-stope with subsequent filling[J]. Metal Mine,2009(11):16-19.
[11]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,2012,37(增1):52-56.Yin Shenghua,Wu Aixiang,Li Xiwen. Orthogonal polar difference analysis for sensitivity of the factors influencing the ore pillar stability[J]. Journal of China Coal Society,2012,37(S1):52-56.
[12]许宏亮,刘召胜,石露,等.用Mathews稳定图法与数值分析法优化充填开采矿山采场结构参数[J].金属矿山,2015(12):19-23.Xu Hongliang,Liu Zhaosheng,Shilu,et al. Optimizing the stope structural parameters using Mathews empirical analysis method and numerical analysis method[J]. Metal Mine,2015(12):19-23.
[13]宋恩祥.盘区机械化上向水平分层进路充填采矿法在嵩县山金矿业的应用[J].有色金属工程,2015(5):55-57.Song Enxiang. Application of mechanized upward horizontal slicing and filling mining method in Songxian Shanjin Mining Co. Ltd.[J]. Nonferrous Metals Engineering,2015(5):55-57.
[14]奥地利Startup公司. Shape MetriX3D系统使用手册[R].沈阳:欧美大地仪器设备中国有限公司,2008.
[15]牟宗龙,窦林名,张广文,等.坚硬顶板型冲击矿压灾害防治研究来源[J].中国矿业大学学报,2006,35(6):737-741.Mu Zonglong,Dou Linming,Zhang Guangwen,et al. Study of prevention methods of rock burst disaster caused by hard rock roof.[J]. Journal of China University of Mining&Technology,2006,35(6):737-741.
[16]钱鸣高,石平五.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2003.
[17]罗淦华,吴爱祥.基于Mathews稳定图法的采场结构参数确定[J].金属矿山,2017(2):31-35.Luo Ganhua,Wu Aixiang. Stope dimension determination based on Mathews stability diagram method[J].Metal Mine,2017(2):31-35.
[18] Potvin Y. Empirical open stope design in Canada[D].Vancouver:The University of British Columbia,1988.
[19] Stewart S B V,Forsyth W W. The Mathews method for open stope design[J]. CIM Bulletin,1995,88(1):45-53.