晋宁磷矿高边坡对爆破振动的动态响应与安全分析
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摘要
对晋宁磷矿东采区爆破振动对高边坡的影响进行了监测和分析研究。根据爆破振动监测数据,对质点振动速度进行回归分析,得出了爆破振动沿边坡的传播衰减规律。采用ANSYS/LSDYNA数值模拟软件对边坡建模,输入实测爆破振动波形后,研究爆破振动作用下高边坡的动态响应规律。根据数值模拟及实测结果,判断出爆破振动作用下边坡整体不会受破坏,为矿山后续的生产爆破提供了依据。
The effects of blasting vibration on high rock slope in east area of Jinning phosphorus open-pit were monitored and analyze.According to the data monitored in blasting vibration,the regression analysis on particle vibration velocity was carried out to obtain the attenuation law of blasting vibration along the slope.The numerical simulation software ANSYS / LS-DYNA was applied on slope modeling,and the laws of dynamic response on high slope were studied after input the measured blasting vibration waveform.According to the numerical simulation and measured results,it was concluded that the slope would not be destroyed under the action of blasting vibration,which provided the basis for the subsequent open-pit blasting.
The effects of blasting vibration on high rock slope in east area of Jinning phosphorus open-pit were monitored and analyze.According to the data monitored in blasting vibration,the regression analysis on particle vibration velocity was carried out to obtain the attenuation law of blasting vibration along the slope.The numerical simulation software ANSYS / LS-DYNA was applied on slope modeling,and the laws of dynamic response on high slope were studied after input the measured blasting vibration waveform.According to the numerical simulation and measured results,it was concluded that the slope would not be destroyed under the action of blasting vibration,which provided the basis for the subsequent open-pit blasting.
引文
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[9]刘优平,龚敏,黄刚海.深孔爆破装药结构优选数值分析方法及其应用[J].岩土力学,2012,33(6):1883-1888LIU You-ping,GONG Min,HUANG Gang-hai.Numerical analysis method for optimizing charging structure of deep-hole blasting and its application[J].Rock and Soil Mechanics,2012,33(6):1883-1888
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[11]刘汉龙,费康,高玉峰.边坡地震稳定性时程分析方法[J].岩土力学,2003,24(4):553-556LIU Han-long,FEI Kang,GAO Yu-feng.Time history analysis method of slope seismic stability[J].Rock and Soil Mechanics,2003,24(4):553-556
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[2]舒大强,赖世骧,朱传云.岩石高边坡爆破震动效应观测及分析[J].爆破,2000,17(增1):245-248SHU Da-qiang,LAI Sh-xiang,ZHU Chuang-yun.Analysis of explosive vibration effect in rock high slope blasting[J].Blasting,2000,17(suppl.1):245-248
[3]陶铁军,池恩安,赵明生,等.露天铁矿分区爆破振动监测与安全分析[J].中国安全生产科学技术,2012,8(12):179-183TAO Tie-jun,CHI En-an,ZHAO Ming-sheng,et al.Monitoring and safety analysis of division blast-induced vibration for open pit iron mine[J].Journal of Safety Science and Technology,2012,8(12):179-183
[4]卢文波,李海波,陈明,等.水电工程爆破振动安全判据及应用中的几个关键问题[J].岩石力学与工程学报,2009,28(8):1513-1520LU Wen-bo,LI Hai-bo,CHEN Ming,et al.Safety criteria of blasting vibration in hydropower engineering and several key problems in their application[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(8):1513-1520
[5]陈明,卢文波,吴亮,等.小湾水电站岩石高边坡爆破振动速度安全阈值研究[J].岩石力学与工程学报,2007,26(1):51-56CHEN Ming,LU Wen-bo,WU Liang,et al.Safety threshold of blasting vibration velocity to high rock slope of Xiaowan Hydropower Station[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):51-56
[6]陈清运,刘美山,王香杰,等.锦屏一级水电站边坡开挖爆破动力稳定性研究[J].爆破,2011,28(1):35-39CHEN Qing-yun,LIU Mei-shan,WANG Xiang-jie,et al.Study on dynamical stability of slope excavation blasting at Jinping one stage hydropower station[J].Blasting,28(1):35-39
[7]谷口修.振动工程大全[M].北京:机械工业出版社,1973
[8]李维光,张继春.爆破振动作用下顺层岩质边坡稳定性分析[J].爆炸与冲击,2009,27(5):426-430LI Wei-guang,ZHANG Ji-chun.Study on rock mass bedding slope stability under blast seism[J].Explosion and Shock Waves,2009,27(5):426-430
[9]刘优平,龚敏,黄刚海.深孔爆破装药结构优选数值分析方法及其应用[J].岩土力学,2012,33(6):1883-1888LIU You-ping,GONG Min,HUANG Gang-hai.Numerical analysis method for optimizing charging structure of deep-hole blasting and its application[J].Rock and Soil Mechanics,2012,33(6):1883-1888
[10]章涛.城市隧道开挖爆破震动对地表建筑物的影响及安全评价[D].青岛:青岛理工大学,2010
[11]刘汉龙,费康,高玉峰.边坡地震稳定性时程分析方法[J].岩土力学,2003,24(4):553-556LIU Han-long,FEI Kang,GAO Yu-feng.Time history analysis method of slope seismic stability[J].Rock and Soil Mechanics,2003,24(4):553-556
[12]舒大强,何蕴龙,董振华.岩质高边坡开挖爆破震动荷载及其对边坡稳定性影响的研究[J].工程爆破,1996,1(4):39-43SHU Da-qiang,HE Yun-long,DONG Zhen-hua.Research on vibration load from excavation blasting and its influence on stability of rock high slope[J].Engineering Blasting,1996,1(4):39-43
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