基于SURPAC的残矿开采堑沟巷道空间位置优化
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摘要
由于残矿空间形态的复杂性,传统的剖切作图方法难以直观全面地掌握该类型矿体形态,进而难以精确指导采切工程的设计,而SURPAC软件采用三维建模方法,能很好地解决这一难题.以西石门铁矿堑沟底部结构诱导冒落法开采残矿为背景,采用SURPAC软件对堑沟内矿石量、金属量、品位等指标进行计算,将堑沟巷道所在的水平和垂直位置作为优化对象,经过对临界冒落跨度和现场工程技术条件的分析,得出堑沟巷道在两个方向上可布置的范围.依据该范围,设计了正交试验方案.以回采金属量和平均品位作为考核指标,对正交试验结果进行极差和方差分析,得出最优的堑沟巷道空间位置:堑沟巷道间距24 m,位于118 m水平.通过现场实施,取得理想的试验效果,实现了残矿的精细化开采.
Because of the complexity of the residual orebody space form,the traditional cutting drawing method is difficult to show the orebody form intuitively and comprehensively,leading to difficulties in cutting engineering design,while SURPAC uses a 3D modeling method to solve this problem. An induced caving method of residual orebodies was investigated with Xishimen Iron Mine as the background. The trench's ore quantity,metal quantity and grade were calculated by SURPAC. The horizontal and vertical positions of a trench tunnel were taken as the optimization objects,and the trench tunnel in both directions was laid out by analyzing the critical caving span and the field engineering and technical conditions. According to the scope,a scheme of orthogonal test was designed.Taking extraction metal quantity and average grade as the assessment indexes,the range analysis and variance analysis of orthogonal test were conducted to obtain the position of a trench tunnel: double trench tunnels have a separation distance of 24 m,with a horizontal level of 118 m. Along with the scene implement,ideal test results have been achieved for refinement caving.
Because of the complexity of the residual orebody space form,the traditional cutting drawing method is difficult to show the orebody form intuitively and comprehensively,leading to difficulties in cutting engineering design,while SURPAC uses a 3D modeling method to solve this problem. An induced caving method of residual orebodies was investigated with Xishimen Iron Mine as the background. The trench's ore quantity,metal quantity and grade were calculated by SURPAC. The horizontal and vertical positions of a trench tunnel were taken as the optimization objects,and the trench tunnel in both directions was laid out by analyzing the critical caving span and the field engineering and technical conditions. According to the scope,a scheme of orthogonal test was designed.Taking extraction metal quantity and average grade as the assessment indexes,the range analysis and variance analysis of orthogonal test were conducted to obtain the position of a trench tunnel: double trench tunnels have a separation distance of 24 m,with a horizontal level of 118 m. Along with the scene implement,ideal test results have been achieved for refinement caving.
引文
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[16]Weaver B,Dubois S.SPSS macros to compare any two fitted values from a regression model.Behav Res Methods,2012,44(4):1175
[2]Jiao M D.Collapse stope disposing and mining practice of impaired mined-out area residual mining.Gansu Metall,2009,31(1):31(焦满岱.塌陷采场处理及采空区破坏残矿开采实践.甘肃冶金,2009,31(1):31)
[3]Gu X J,Hu L,Peng W Q,et al.Mining techniques and safety management measures for remnant orebody with remaining old workings.China Saf Sci J,2008,18(1):150(谷新建,胡磊,彭文庆,等.老窿残矿开采技术及安全管理措施.中国安全科学学报,2008,18(1):150)
[4]Ling T H,Li X B,Zhao G Y.Research of mining technology for remanent orebody in high-water deposit.Met Mine,2003(4):11(凌同华,李夕兵,赵国彦.大水矿床残矿开采技术研究.金属矿山,2003(4):11)
[5]Ren F Y,Li H Y,Ren M L,et al.Technique of induced caving on adjacent mined-out areas in Shujigou iron mine.China Min Mag,2012,21(Supp 1):378(任凤玉,李海英,任美霖,等.书记沟铁矿相邻空区诱导冒落技术研究.中国矿业,2012,21(增刊1):378)
[6]Ren F Y,Li N.Research of mining techniques for orebodies with multi-mined-out areas in Tuancheng iron deposit.Met Mine,2008(3):32(任凤玉,李楠.团城铁矿多空区矿体开采技术研究.金属矿山,2008(3):32)
[7]Zhou Z H,Ren F Y,Yuan G Q,et al.Application of induced caving technique in processing mined-out area.Met Mine,2005(12):73(周宗红,任凤玉,袁国强,等.诱导冒落技术在空区处理中的应用.金属矿山,2005(12):73)
[8]Chang S,Ren F Y,Li N.Mining method of ore-body with multiple mined-out areas.Met Mine,2014(10):13(常帅,任凤玉,李楠.复杂多空区破坏矿体的采矿方法.金属矿山,2014(10):13)
[9]Ren F Y,Chang S,Liu N.Technology research on simultaneous exploitation of low and high-grade ore in Xishimen iron mine.Met Mine,2012(7):42(任凤玉,常帅,刘娜.西石门铁矿南区贫富兼采技术研究.金属矿山,2012(7):42)
[10]Carter R A.New generation of 3-D mining software sets the scene.Eng Min J,2012,213(7):34
[11]Luo Z Q,Liu X M,Su J H,et al.Deposit 3D modeling and application.J Cent South Univ Technol,2007,14(2):225
[12]Liu D M,Xie L K,Yang Z Q,et al.Optimization of blasting design in pillar recovery with the aid of Dimine.Met Mine,2011(5):9(刘德民,解联库,杨志强,等.基于Dimine的辅助矿柱回采爆破设计优化.金属矿山,2011(5):9)
[13]Zhou K P,Du X H.Study on stability of residual ore recovery based on coupling of 3DMINE-MIDAS/GTS--FLAC3D.China Saf Sci J,2011,21(5):17(周科平,杜相会.基于3DMINE-MIDAS--FLAC3D耦合的残矿回采稳定性研究.中国安全科学学报,2011,21(5):17)
[14]Liu R J,Zhang Y W,Wen C W,et al.Study on the design and analysis methods of orthogonal experiment.Exp Technol Manage,2010,27(9):52(刘瑞江,张业旺,闻崇炜,等.正交试验设计和分析方法研究.实验技术与管理,2010,27(9):52)
[15]Chen D G,Hu N L,Li G Q.Stationarity for the non-normal distribution of regionalized variables.J Univ Sci Technol Beijing,2009,31(4):412(陈道贵,胡乃联,李国清.区域化变量非正态分布的稳健性.北京科技大学学报,2009,31(4):412)
[16]Weaver B,Dubois S.SPSS macros to compare any two fitted values from a regression model.Behav Res Methods,2012,44(4):1175