黄金科学技术 ›› 2019, Vol. 27 ›› Issue (2): 189-198.doi: 10.11872/j.issn.1005-2518.2019.02.189
Chuanfeng FANG1,2,3(),Jinmiao WANG1,4,Shanbing LI5,Mingtao JIA1,4
摘要:
采用二维颗粒流软件PFC2D构建矿山模型,引入符合矿山实际节理产状的DFN网络,基于室内岩石试验及矿山实际崩落情况,标定模拟所用细观参数。以某工程应用为实例,模拟分析崩落破坏机理与崩落区演化趋势。结果表明:裂纹发起于推进面与顶板交界处,在拱形区域内密集扩展、贯通,矿岩破裂以节理拉伸破坏为主,矿堆以岩石剪切破坏为主;崩落区前期呈拱形演化,崩透地表后引起邻近高陡边坡滑动;部分拉底仅造成新开挖顶板上方局部崩落。该研究结果可对矿山崩落采矿起到指导作用。
中图分类号:
1 | 冯兴隆.自然崩落法矿岩工程质量数字化评价及模拟技术研究[D].长沙:中南大学,2010. |
FengXinglong.Study on Digital Assessment and Simulation Technology at Rock Mass Engineering Quality of Block Caving[D].Changsha:Central South University,2010. | |
2 | 安龙,徐帅,李元辉,等.基于多方法联合的崩落法崩矿步距优化[J].岩石力学与工程学报,2013,32(4):754-759. |
AnLong,XuShuai,LiYuanhui,et al.Optimization of rate of advance during ore breaking of caving method based on multi-method joint application[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(4):754-759. | |
3 | BradyB H G,BrownE T.Rock Mechanics for Underground Mining[M].Beijing:Science Press,2014:440-441. |
4 | WooK S,EberhardtE,ElmoD,et al.Empirical investigation and characterization of surface subsidence related to block cave mining[J].International Journal of Rock Mechanics and Mining Sciences,2013,61(61):31-42. |
5 | 解世俊.金属矿床地下开采[M].北京:冶金工业出版社,1979:202-203. |
XieShijun.Underground Mining of Metal Deposit[M].Beijing:Metallurgical Industry Press,1979:202-203. | |
6 | 赵文.岩石力学[M].长沙:中南大学出版社,2014:191-192. |
ZhaoWen.Rock Mechanics[M].Changsha:Central South University Press,2014:191-192. | |
7 | 孔令海,姜福兴,杨淑华,等.基于高精度微震监测的特厚煤层综放工作面顶板运动规律[J].北京科技大学学报,2010,32(5):552-558,588. |
KongLinghai,JiangFuxing,YangShuhua,et al.Movement of roof strata in extra-thick coal seams in top-coal caving mining based on a high precision micro-seismic monitoring system[J].Journal of University of Science and Technology Beijing,2010,32(5):552-558,588. | |
8 | 薛东杰,周宏伟,任伟光,等.浅埋煤层超大采高开采柱式崩塌模型及失稳[J].煤炭学报,2015,40(4):760-765. |
XueDongjie,ZhouHongwei,RenWeiguang,et al.Instability of pillar collapse model and generation of cracks in thick coal seam mining at shallow depth[J].Journal of China Coal Society,2015,40(4):760-765. | |
9 | CaoS,DuC F,MuC P,et al.UDEC-based modelling of mining surface movement due to transforming from block caving to sublevel filling and its law verification[J].Rock and Soil Mechanics,2015,36(6):1737-1743,1751. |
10 | 王涛,盛谦,熊将.基于颗粒流方法自然崩落法数值模拟研究[J].岩石力学与工程学报,2007,26(增2):4202-4207. |
WangTao,ShengQian,XiongJiang.Research on numerical simulation based on particle flow method[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(Supp.2):4202-4207. | |
11 | 王连庆,高谦,王建国,等.自然崩落采矿法的颗粒流数值模拟[J].北京科技大学学报,2007,29(6):557-561. |
WangLianqing,GaoQian,WangJianguo,et al. Numerical simulation of natural caving method based on particle flow code in two dimensions[J].Journal of University of Science and Technology Beijing,2007,29(6):557-561. | |
12 | 曾庆田,刘科伟,严体,等.基于多数值模拟方法联合的自然崩落法开采研究[J].黄金科学技术,2015,23(1):66-73. |
ZengQingtian,LiuKewei,YanTi,et al.Study on natural caving mining method based on multi-numerical simulation method[J].Gold Science and Technology,2015,23(1):66-73. | |
13 | VyazmenskyA,ElmoD,SteadD.Role of rock mass fabric and faulting in the development of block caving induced surface subsidence[J].Rock Mechanics and Rock Engineering,2010,43(5):533-556. |
14 | WooK S,EberhardtE,RabusB,et al.Integration of field characterisation,mine production and InSAR monitoring data to constrain and calibrate 3-D numerical modelling of block caving-induced subsidence[J].International Journal of Rock Mechanics and Mining Sciences,2012,53(9):166-178. |
15 | ElmoD,SteadD.An integrated numerical modelling-discrete fracture network approach applied to the characterisation of rock mass strength of naturally fractured pillars[J].Rock Mechanics and Rock Engineering,2010,43(1):3-19. |
16 | 黄彦华,杨圣奇,鞠杨,等.岩石巴西劈裂强度与裂纹扩展颗粒尺寸效应研究[J].中南大学学报(自然科学版),2016,47(4):1272-1281. |
HuangYanhua,YangShengqi,JuYang,et al.Study on particle size effects on strength and crack coalescence behavior of rock during Brazilian splitting test[J].Journal of Central South University(Science and Technology),2016,47(4):1272-1281. | |
17 | 刘波,金爱兵,高永涛,等.基于分形几何理论的DFN模型构建方法研究[J].岩土力学,2016,37(增1):625-630,638. |
LiuBo,JinAibing,GaoYongtao,et al.Construction method research on DFN model based on fractal geometry theory[J].Rock and Soil Mechanics,2016,37(Supp.1):625-630,638. | |
18 | Itasca Consulting Group.PFC2D User’s Manual (Version5.0) [M].Minneapolis:Itasca Consulting Group, 2014. |
19 | 李坤蒙,李元辉,徐帅,等.PFC2D数值计算模型微观参数确定方法[J].东北大学学报(自然科学版),2016,37(4):562-567. |
LiKunmeng,LiYuanhui,XuShuai,et al.Method to determine microscopic parameters of PFC2D numerical model[J].Journal of Northeastern University(Natural Science),2016,37(4):562-567. |
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