尾砂胶结物充填采空区围岩稳定性数值模拟
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摘要
矿柱的安全回采及采空区处理直接关系到矿山的可持续发展与人员的安全。以内蒙古某矿区铁锌多金属矿山工程地质为依据,采用超声波测试技术,探测多次爆破下回采巷道围岩损伤累计增长规律,通过尾砂胶结物充填技术,以FLAC3D模拟巷道围岩在外界荷载作用下的受力情况,主要是应力、应变及变形位移量的分析,对矿山安全回采方面具有较为重要的理论意义和工程应用价值。
The pillar safety mining and goaf processing directly related to the sustainable development of mining and the safety of the staff.Based on the engineering geology of multi-metal mine of a mining area,the ultrasonic testing technology,exploration of many times under the surrounding rock blasting mining damage cumulative growth rule,the mechanical deformation of the surrounding rock under external loading condition is simulated by FLAC3D,mainly is the stress,strain and deformation of the displacement analysis of mine safety mining.The results have an important theoretical significance and application value.
The pillar safety mining and goaf processing directly related to the sustainable development of mining and the safety of the staff.Based on the engineering geology of multi-metal mine of a mining area,the ultrasonic testing technology,exploration of many times under the surrounding rock blasting mining damage cumulative growth rule,the mechanical deformation of the surrounding rock under external loading condition is simulated by FLAC3D,mainly is the stress,strain and deformation of the displacement analysis of mine safety mining.The results have an important theoretical significance and application value.
引文
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[2]王庆军,郭树林,王军民,等.全面采矿法采场的矿柱回采[J].黄金,2006,27(6):21-23.
[3]李宏平,刘樟祥.多层矿体的矿柱回采[J].有色金属:矿山部分,2003,55(1):5-8.
[4]余荣炳,万国春.金山金矿房柱法开采的矿柱回采[J].矿业研究与开发.2003.23(3):3-4.
[5]刘沐宇,徐长佑.地下采空区矿柱稳定性分析[J].矿冶工程,2000(1):19-22.
[6]赵奎.残矿柱回采与空区稳定性的有限元模拟研究[J].采矿技术,2002(6):51-53.
[7]汪旭光,熊代余.第六届国际岩石爆破破碎(Fragblast6)学术会议综述[J].爆破,2000,17(S):1-5.
[8]张丽华,陶连金.节理岩体地下洞室群的地震动力响应分析[J].世界地震工程,2002,18(2):158-162.
[9]Margolin L G,Adams T F.Spatial differencing for finite differencecode[R].LA-10249 Los Alamos National Laboratory Report,1985.
[10]Eneva M,Van Aswegen G,Mendeeki A J.Seismic Response ofRock Mass to Blasting&Rock burst Potential[J].InternationalJournal of Rock Meehanies&Mining Sciences,1998,35(4/5):390-391.
[11]阳生权.隧道围岩爆破地震累积效应研究[J].岩石力学与工程学报,2007,3(8):1451-1454.
[12]熊代余,顾毅成.岩石爆破理论与技术新进展[M].北京:冶金工业出版社,2002.
[13]Grady D E,Kipp M E.Continuum modeling of explosive fracturein oi1 shale[J].International Journal of Rock Mechanics&Min-ing Sciences,1990,17(2):147-157.
[14]Taylor L M,Chen E P,Kuszmaul J S.Microcrack induced dam-age accumulation in brittle rock under dynamic loading[J].Com-puter Method in APP.Mech.&Engng,1996,55:301-320.
[15]夏祥,李俊如,李海波,等.爆破荷载作用下岩体振动特征的数值模拟[J].岩土力学,2005,26(1):50-56.
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