黄金科学技术 ›› 2019, Vol. 27 ›› Issue (2): 241-248.doi: 10.11872/j.issn.1005-2518.2019.02.241
• 采选技术与矿山管理 • 上一篇
Xiaohan LI(),Kewei LIU(),Jiacai YANG,Xudong LI
摘要:
为研究岩石在不同地应力下的爆破振动效应,选择经验证过的岩石本构,利用ANSYS/LS-DYNA隐式—显式序列求解方法,对不同侧压力系数下岩石爆破过程进行数值分析。分别构建了侧压力系数为0.1、0.5、1.0、2.0、4.0条件下的计算模型,数值模拟结果表明:初始地应力对爆破有较强的抑制作用,岩石破碎区受侧压力系数的影响较小,爆破裂纹优先向较大的地应力方向延伸;岩石质点振动速度峰值(PPV)到达时间不受侧压力系数的影响;当侧压力系数小于1.0时,水平方向的质点振动速度峰值大于竖直方向;当侧压力系数大于1.0时,竖直方向的质点振动速度峰值大于水平方向。
中图分类号:
1 | YuL,SuH,JingH,et al.Experimental study of the mechanical behavior of sandstone affected by blasting[J].International Journal of Rock Mechanics and Mining Sciences,2017,93:234-241. |
2 | RoyM P,SinghP K,SarimM,et al.Blast design and vibration control at an underground metal mine for the safety of surface structures[J].International Journal of Rock Mechanics and Mining Sciences,2016,83:107-115. |
3 | AhsanN,SchedingS,MonteiroS T,et al.Adaptive sampling applied to blast-hole drilling in surface mining[J].International Journal of Rock Mechanics and Mining Sciences,2015,75:244-255. |
4 | LeeJ S,AhnS K,SagongM.Attenuation of blast vibration in tunneling using a pre-cut discontinuity[J].Tunnelling and Underground Space Technology,2016,52:30-37. |
5 | YangP,XiangJ,ChenM,et al.The immersed-body gas-solid interaction model for blast analysis in fractured solid media[J].International Journal of Rock Mechanics and Mining Sciences,2017,91:119-132. |
6 | YiC P,JohanssonD,GrebergJ.Effects of in-situ stresses on the fracturing of rock by blasting[J].Computers and Geotechnics,2018, 104:321-330. |
7 | 胡建华,杨春,周炳任,等.巷道压顶光面爆破裂隙扩展模拟及参数优化[J].黄金科学技术,2017,25(2):45-53. |
HuJianhua,YangChun,ZhouBingren,et al.Simulation of fracture propagation and optimization of parameters for smooth blasting of coping in roadway[J].Gold Science and Technology,2017,25(2):45-53. | |
8 | 过江,崔文强,陈辉.不同耦合介质光面爆破裂纹发展数值分析[J].黄金科学技术,2016,24(1):68-75. |
GuoJiang,CuiWenqiang,ChenHui.Numerical analysis of the smooth blasting crack development under different coupling medium[J].Gold Science and Technology,2016,24(1):68-75. | |
9 | Van GoolB V.Effects of Blasting on the Stability of Paste Fill Stopes at Cannington Mine[D].Townsville:James Cook University,2007. |
10 | 刘优平,龚敏,赵江倩,等.近充填体崩矿过程爆破振动控制研究[J].矿冶工程,2011,31(5):13-17. |
LiuYouping,GongMin,ZhaoJiangqian,et al.Study on blasting vibration control during mining near the fill-mass[J].Mining and Metallurgical Engineering,2011,31(5):13-17. | |
11 | 唐明渊,周建敏,余红兵,等.爆破振动对不同埋深采空区稳定性影响研究[J].爆破,2017,34(3):140-144. |
TangMingyuan,ZhouJianmin,YuHongbing,et al.Influenced of blasting vibration on stability analysis of different depths of mined-out areas[J].Blasting,2017,34(3):140-144. | |
12 | 胡建华,雷涛,周科平,等.充填采矿环境下爆破振动效应预测与控制[J].爆破,2009,26(4):81-84. |
HuJianhua,LeiTao,ZhouKeping,et al.Forecast and control of blasting vibration effects under fill mining condition[J].Blasting,2009,26(4):81-84. | |
13 | LuW B,ChenM,GengX,et al.A study of excavation sequence and contour blasting method for underground powerhouses of hydropower stations[J].Tunnelling and Underground Space Technology,2012,29:31-39. |
14 | MaG W,AnX M.Numerical simulation of blasting-induced rock fractures[J].International Journal of Rock Mechanics and Mining Sciences,2008,45(6):966-975. |
15 | YilmazO,UnluT.Three dimensional numerical rock damage analysis under blasting load[J].Tunnelling and Underground Space Technology,2013,38(9):266-278. |
16 | LSTC.LS-DYNA User Manual Version Non Dynamic of Structure in Three Dimension[M].California:Livermore Software Technology Corporation(LSTC),2003. |
17 | JohnH O.LS-DYNA theoretical manual-version 970[R].Califorila:Livermore Software Technology Corporation,2005. |
18 | 杨军,金乾坤,黄风雷,等.岩石爆破理论模型及数值计算[M].北京:科学出版社,1999. |
YangJun,JinQiankun,HuangFenglei,et al.Theoretical Model and Numerical Simulation of Rock Blasting[M].Beijing:Science Press,1999. | |
19 | 石少卿,康建功,汪敏,等.ANSYS/LS-DYNA在爆炸与冲击领域内的工程应用[M].北京:中国建筑工业出版社,2011:20-31. |
ShiShaoqing,KangJiangong,WangMin,et al.Application of ANSYS/LS-DYNA in Blasting and Impacting[M].Beijing:China Architecture and Building Press,2011:20-31. | |
20 | HallquistJ O.Theoretical manual for dyna3D university of California[R].Califorila:Lawrence Livermore National Laboratory,1982. |
21 | OnederraI A,FurtneyJ K,SellersE,et al.Modelling blast induced damage from a fully coupled explosive charge[J].International Journal of Rock Mechanics and Mining Sciences,2013,58:73-84. |
22 | ZhaoJ J,ZhangY,RanjithP G.Numerical simulation of blasting-induced fracture expansion in coal masses[J].International Journal of Rock Mechanics and Mining Sciences,2017,100:28-39. |
23 | 唐海,李海波,周青春,等.预裂爆破震动效应试验研究[J].岩石力学与工程学报,2010,29(11):2277-2284. |
TangHai,LiHaibo,ZhouQingchun,et al.Experimental study of vibration effect of presplit blasting[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(11):2277-2284. |
[1] | 过江,崔文强,陈辉. 不同耦合介质光面爆破裂纹发展数值分析[J]. 黄金科学技术, 2016, 24(1): 68-75. |
[2] | 铁柱,朝宝楞,纪主. 图古日格金矿地应力测量与分析[J]. 黄金科学技术, 2014, 22(6): 73-76. |
[3] | 聂胜陆,曹洪征. 那林金矿地应力与井巷稳固性的关系探讨[J]. J4, 2010, 18(6): 65-69. |
|