Blasting Process Simulation and Stability Study of an Open Mine Slope Based on PFC3D

CUI Tie-jun; MA Yun-dong>; WANG Lai-gui

doi:10.3879/j.issn.1000-0887.2014.07.005

Volume 35 Issue 7

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Article Navigation > Applied Mathematics and Mechanics > 2014 > 35(7): 759-767

CUI Tie-jun, MA Yun-dong>, WANG Lai-gui. Blasting Process Simulation and Stability Study of an Open Mine Slope Based on PFC3D[J]. Applied Mathematics and Mechanics, 2014, 35(7): 759-767. doi: 10.3879/j.issn.1000-0887.2014.07.005

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Blasting Process Simulation and Stability Study of an Open Mine Slope Based on PFC3D

doi: 10.3879/j.issn.1000-0887.2014.07.005

¹College of Safety Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, P.R.China;²Tunnel & Underground Structure Engineering Center of Liaoning Province, Dalian Jiaotong University, Dalian, Liaoning 116028, P.R.China;³School of Mechanics and Engineering, Liaoning Technical University,Fuxin, Liaoning 123000, P.R.China

Funds: The National Natural Science Foundation of China（51274110；50434020；10972096）

Received Date: 2013-10-28
Rev Recd Date: 2014-05-28
Publish Date: 2014-07-15

Abstract

Abstract

To study the blasting process in an open mine slope, based on the theory of energy conservation, it was assumed that all the chemical energy released during explosion was transmitted to the surrounding rock body within a certain range and partially converted to kinetic energy, then the explosion energy was transferred and absorbed in the fractured and damping rock until the ultimate balance at the end of this dynamic process. The PFC3D simulation platform was employed to calcaulate the singlehole blasting processes with different heights, buried depths and charge amounts in the open mine slope, and the slope stability after blasting was discussed. The simulation results show that: the blasting process can be divided into 3 phases. In the first phase, the explosion impact plays a leading role, accompanied by the reverberation of the velocity vectors. In the second phase, gravity is the dominant factor for the collapse of the overburden rock. In the third phase, some particles roll or slip down and end in balance. The time length of the following phase is bigger than that of the preceding one by almost 1 order of magnitude. In general, the upper sandstone is stable after all sorts of blasting, i.e. the slope top is stable. The lower sandstone and sandy mudstone are subject to a certain degree of damage but still in control.
- open mine slope,
- blasting,
- particle flow theory,
- PFC3D,
- stability

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References(16)

References

[1]	Donze F V, Bouehez J, Magnier S A. Modeling fractures in rock blasting[J].International Journal of Rock Mechanics and Mining Scienees,1997,34(8): 1153-1163.
[2]	高金石, 张继春. 爆破破岩机理动力分析[J]. 金属矿山, 1989,9: 7-12.(GAO Jin-shi, ZHANG Ji-chun. The blasting mechanism of rock dynamic analysis[J].Metal Mine,1989,9: 7-12.(in Chinese))
[3]	Bhandari S. On the role of stress waves and quasi-static gas pressure in rock fragmentation by blasting[J].Acta Astronautica,1979,6(3/4): 365-383.
[4]	Paine A S, Please C P. An improved model of fracture propagation by gas during rock blasting―some analytical results[J].International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts ,1994,31(6): 699-706.
[5]	陈朝玉, 黄文辉, 陈国勇. 爆破模拟对柔弱夹层顺层边坡的稳定性诊断[J]. 湖南科技大学学报（自然科学版）, 2010,25(3): 55-58.(CHEN Chao-yu, HUANG Wen-hui, CHEN Guo-yong. Blasting simulation of weak interlayer bedding slope stability diagnosis[J].Journal of Hunan University of Science & Technology（Natural Science Edition ）, 2010,25(3): 55-58.(in Chinese))
[6]	王建国, 栾龙发, 张智宇, 李祥龙, 凡春礼. 爆破震动对高陡边坡稳定影响的数值模拟研究[J]. 爆破, 2012,29(3): 119-122.(WANG Jian-guo, LUAN Long-fa, ZHANG Zhi-yu, LI Xiang-long, FAN Chun-li. Numerical simulation of blasting vibration effect on stability of high-steep slope[J].Blasting,2012,29(3): 119-122.(in Chinese))
[7]	钟冬望, 吴亮, 陈浩. 爆炸荷载下岩质边坡动力特性试验及数值分析研究[J]. 岩石力学与工程学报, 2010,29(增1): 2964-2971.(ZHONG Dong-wang, WU Liang, CHEN Hao. Model test and numerical simulation study of dynamic characteristics of rock slope under blast loading[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(supp 1): 2964-2971.(in Chinese))
[8]	刘磊. 岩质高边坡爆破动力响应规律数值模拟研究[D]. 硕士学位论文. 武汉: 武汉理工大学, 2007.(LIU Lei. Numerical simulation research on dynamic research on dynamic response rules of high rock slope under explosion[D]. Master Thesis. Wuhan: Wuhan University of Technology, 2007.(in Chinese))
[9]	谢冰. 岩体动态损伤特性分析及其在基础爆破安全控制中的应用[D]. 博士学位论文. 武汉: 中国科学院武汉岩土力学研究所, 2010.(XIE Bing. Analysis of characteristics of rock dynamic damage and application of safty control in foundation pit excavation by blasting[D]. PhD Thesis. Wuhan: Institute of Rock and Soil Mechanics Chinese Academy of Seiences, 2010.(in Chinese))
[10]	王洪德, 马云东, 崔铁军. 地铁施工过程数值仿真及安全性分析[M]. 北京: 清华大学出版社, 2013.(WANG Hong-de, MA Yun-dong, CUI Tie-jun.The Subway Construction Process of Numerical Simulation and Safety Analysis [M]. Beijing: Tsinghua University Press, 2013.(in Chinese))
[11]	崔铁军, 马云东. 基于泛函网络的周期来压预测方法研究[J]. 计算机科学, 2013,40(6A): 242-246.(CUI Tie-jun, MA Yun-dong. Prediction of periodic weighting based on optimized functional networks[J].Computer Science,2013,40(6A): 242-246.(in Chinese))
[12]	崔铁军, 马云东. 基于差异进化支持向量机的坑外土体沉降预测[J]. 中国安全科学学报, 2013,23(1): 83-89.(CUI Tei-jun, MA Yun-dong. Prediction of soil settlement outside pit based on DE and SVM[J].China Safety Science Journal,2013,23(1):83-89.(in Chinese))
[13]	崔铁军, 马云东, 白润才. 基于 ANN 耦合遗传算法的爆破方案选择方法[J]. 中国安全科学学报, 2013,23(2): 64-68.(CUI Tei-jun, MA Yun-dong, BAI Run-cai. Selection of blast scheme based on coupling of genetic algorithm and artificial neural network[J].China Safety Science Journal,2013,23(2): 64-68.(in Chinese))
[14]	王洪德, 崔铁军, 马云东. 基于差异进化算法的爆破震速参数识别与优化[J]. 中国安全科学学报, 2012,22(5): 17-23.(WANG Hong-de, CUI Tie-jun, MA Yun-dong. Blasting vibration velocity parameters recognition and optimization based on differential evolution algorithm[J].China Safety Science Journal,2012,22(5): 17-23.(in Chinese))
[15]	Itasca. PFC概况[EB/OL]. http://itasca.cn/ruanjian.jsp?sclassid=106&classid=18, 2010.
[16]	陈宜楷. 基于颗粒流离散元的尾矿库坝体稳定性分析[D]. 硕士学位论文. 长沙: 中南大学, 2012.(CHEN Yi-kai. The tailings dam stability analysis based on the discrete element particle flow[D]. Master Thesis. Changsha: Central South University, 2012.(in Chinese))

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