地下金属矿山主溜井损伤分析及修复研究
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摘要
主溜井放矿过程中矿石对溜井的冲击和磨损易造成溜井的变形、失稳和垮塌。为深入分析溜井的损伤机理,构建了溜井受矿石冲击的冲击损伤理论模型和受矿石摩擦的磨擦损伤理论模型。基于冲击损伤理论模型,运用MATLAB计算得到溜井受矿石冲击的冲量分布规律。通过空区激光探测系统(CMS)探测获取溜井三维信息并导入到SURPAC中生成三维可视化模型,准确获取了溜井垮塌区三维形态和实际边界。基于损伤分析和探测模型对溜井垮塌现状提出了修复方案。结果表明:通过溜井冲击损伤模型可定量计算得到溜井受冲击的区域冲量分布规律;通过探测获取的溜井垮塌区域与计算得到溜井受冲击的区域结果基本一致;溜井探测模型分析结果能支持溜井冲击损伤理论模型和摩擦损伤模型。
In the ore process of main chute,the impact and abrasion by ore may lead to the deformation,instability and collapse of chute. For an in-depth analysis on the damage mechanism of chute,theoretical models of impact damage and friction damage were established. Based on theoretical model of impact damage,the distribution law of impulse by impact of rock on chute was obtained by MATLAB calculation. The 3D information of chute was obtained by using of capacity monitoring system( CMS),and was imported into 3D software SURPAC to generate the3 D visualization model,and the 3D shape and practical boundary of chute collapsed area were accurately obtained.The rehabilitation program to the current status of chute collapse was put forward based on models of damage analysis and monitoring. The results showed that: 1) The impulse distribution in impacted area of chute can be quantitatively calculated through chute impact damage model; 2) The chute collapsed area by monitoring is basically identical with the calculation result. 3) The impact damage theoretical model and friction damage theoretical model can be supported by the analysis results of chute monitoring model.
In the ore process of main chute,the impact and abrasion by ore may lead to the deformation,instability and collapse of chute. For an in-depth analysis on the damage mechanism of chute,theoretical models of impact damage and friction damage were established. Based on theoretical model of impact damage,the distribution law of impulse by impact of rock on chute was obtained by MATLAB calculation. The 3D information of chute was obtained by using of capacity monitoring system( CMS),and was imported into 3D software SURPAC to generate the3 D visualization model,and the 3D shape and practical boundary of chute collapsed area were accurately obtained.The rehabilitation program to the current status of chute collapse was put forward based on models of damage analysis and monitoring. The results showed that: 1) The impulse distribution in impacted area of chute can be quantitatively calculated through chute impact damage model; 2) The chute collapsed area by monitoring is basically identical with the calculation result. 3) The impact damage theoretical model and friction damage theoretical model can be supported by the analysis results of chute monitoring model.
引文
[1]明世祥.地下金属矿山主溜井变形破坏机理分析[J].金属矿山,2004,(1):5-8MING Shi-xiang.Analysis of deformation destruction mechanism of main pass in underground[J].Metal Mines,2004,(1):5-8
[2]宋卫东,王洪永,王欣,等.采区溜井卸矿冲击载荷作用的理论分析与验证[J].岩土力学,2011,32(2):326-332SONG Wei-dong,WANG Hong-yong,WANG Xin,et al.Theoretical analysis and test of impact load due to ore dumping in chute[J].Rock and Soil Mechanics,2011,32(2):326-332
[3]宋卫东,匡忠祥.采场溜井加固工程围岩稳定性数值计算分析[J].金属矿山,2001,(6):23-25SONG Wei-dong,KUANG Zhong-xiang.Numerical calculation analysis of the surrounding rock stability of the reinforcement engineering[J].Metal Mine,2001,(6):23-25
[4]罗周全,贾楠,谢承煜,等.深部主溜井垮塌的有限元分析及实测验证[J].科技导报,2013,31(23):26-31LUO Zhou-quan,JIA Nan,XIE Cheng-yu,et al.Finite element analysis and measured validation of deep main ore pass collapse[J].Science&Technology Review,2013,31(23):26-31
[5]Atkinson.岩石断裂力学[M].北京:地震出版社,1992:101-106
[6]朱栗宝.冲击荷载作用下采场底部结构损伤机理研究及应用[D].长沙,2011:60-72
[7]赵文,梁磊,张锋春,等.冲击荷载作用下混凝土的受力分析[J].东北大学学报(自然科学版),2008,29(5):738-741ZHAO Wen,LIANG Lei,ZHANG Feng-chun,et al.Stress analysis of concrete under impact loading[J].Journal of Northeastern University(Natural Science),2008,29(5):738-741
[8]曹文贵,方祖烈,唐学军.岩石损伤软化统计本构模型之研究[J].岩石力学与工程学报,1998,17(6):628-633CAO Wen-gui,FANG Zu-lie,TANG Xue-jun.A study of statistical constitutive model for softening and damage rocks[J].Chinese Journal of Rock Mechanics and Engineering,1998,17(6):628-633
[9]徐卫亚,韦立德.岩石损伤统计本构模型的研究[J].岩石力学与工程学报,2002,21(6):787-791XU Wei-ya,WEI Li-de.Study on statistical damage constitutive model of rock[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(6):787-791
[10]Lee M Taylor,Er-Ping Chen,Joel S Kuszmaul.Microcrack-Induced Damage Accumulation in brittle rock under dynamic loading[J].Computer Methods in Applied Mechanics and Engineering,1986,55(3):301-320
[11]Grady D E,Kipp M E.Mechanisms of Dynamic Fragmentation:Fractors Governing Fragment Size[J].Mechanics of Materials,1985,4(3/4):311-320
[12]Shockey D A,Curran D R,Lynn Seaman.et al.Fragmentation of rock under dynamic loads[J].International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts,1974,11(8):303-317
[13]刘兴国.放矿理论基础[M].北京:冶金工业出版社,1995:7-8
[14]王昌汉.放矿学[M].北京:冶金工业出版社,1982:39-55
[15]吴爱祥,孙业志,刘湘平.散体动力学理论及其应用[M].北京:冶金工业出版社,2002:21-24
[2]宋卫东,王洪永,王欣,等.采区溜井卸矿冲击载荷作用的理论分析与验证[J].岩土力学,2011,32(2):326-332SONG Wei-dong,WANG Hong-yong,WANG Xin,et al.Theoretical analysis and test of impact load due to ore dumping in chute[J].Rock and Soil Mechanics,2011,32(2):326-332
[3]宋卫东,匡忠祥.采场溜井加固工程围岩稳定性数值计算分析[J].金属矿山,2001,(6):23-25SONG Wei-dong,KUANG Zhong-xiang.Numerical calculation analysis of the surrounding rock stability of the reinforcement engineering[J].Metal Mine,2001,(6):23-25
[4]罗周全,贾楠,谢承煜,等.深部主溜井垮塌的有限元分析及实测验证[J].科技导报,2013,31(23):26-31LUO Zhou-quan,JIA Nan,XIE Cheng-yu,et al.Finite element analysis and measured validation of deep main ore pass collapse[J].Science&Technology Review,2013,31(23):26-31
[5]Atkinson.岩石断裂力学[M].北京:地震出版社,1992:101-106
[6]朱栗宝.冲击荷载作用下采场底部结构损伤机理研究及应用[D].长沙,2011:60-72
[7]赵文,梁磊,张锋春,等.冲击荷载作用下混凝土的受力分析[J].东北大学学报(自然科学版),2008,29(5):738-741ZHAO Wen,LIANG Lei,ZHANG Feng-chun,et al.Stress analysis of concrete under impact loading[J].Journal of Northeastern University(Natural Science),2008,29(5):738-741
[8]曹文贵,方祖烈,唐学军.岩石损伤软化统计本构模型之研究[J].岩石力学与工程学报,1998,17(6):628-633CAO Wen-gui,FANG Zu-lie,TANG Xue-jun.A study of statistical constitutive model for softening and damage rocks[J].Chinese Journal of Rock Mechanics and Engineering,1998,17(6):628-633
[9]徐卫亚,韦立德.岩石损伤统计本构模型的研究[J].岩石力学与工程学报,2002,21(6):787-791XU Wei-ya,WEI Li-de.Study on statistical damage constitutive model of rock[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(6):787-791
[10]Lee M Taylor,Er-Ping Chen,Joel S Kuszmaul.Microcrack-Induced Damage Accumulation in brittle rock under dynamic loading[J].Computer Methods in Applied Mechanics and Engineering,1986,55(3):301-320
[11]Grady D E,Kipp M E.Mechanisms of Dynamic Fragmentation:Fractors Governing Fragment Size[J].Mechanics of Materials,1985,4(3/4):311-320
[12]Shockey D A,Curran D R,Lynn Seaman.et al.Fragmentation of rock under dynamic loads[J].International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts,1974,11(8):303-317
[13]刘兴国.放矿理论基础[M].北京:冶金工业出版社,1995:7-8
[14]王昌汉.放矿学[M].北京:冶金工业出版社,1982:39-55
[15]吴爱祥,孙业志,刘湘平.散体动力学理论及其应用[M].北京:冶金工业出版社,2002:21-24
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