爆破载荷作用下高陡节理岩质边坡动态响应的3DEC模拟
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摘要
运用三维离散元程序3DEC,对某露天矿高陡节理岩质边坡在自然状态下的静态响应和爆破载荷作用下的动态响应进行了模拟,分析了爆破载荷作用下边坡质点的振动速度以及位移和应力特征,并将计算结果与现场监测结果进行了比较。结果表明,两者吻合较好,用3DEC模拟爆破载荷作用下节理岩体边坡的动态响应是适合的。
The static and dynamic response of high steep joint-rock slope under blasting load is simulated by Three-Dimensional Distinct Code(3DEC).Vibration speed,displacement and stress field of given slope particle under explosion are analyzed and results obtained are compared with that from site monitoring.It is shown that the both are in a good agreement.Therefore,3DEC simulation on the dynamic response of jointed rock slope is effective.
The static and dynamic response of high steep joint-rock slope under blasting load is simulated by Three-Dimensional Distinct Code(3DEC).Vibration speed,displacement and stress field of given slope particle under explosion are analyzed and results obtained are compared with that from site monitoring.It is shown that the both are in a good agreement.Therefore,3DEC simulation on the dynamic response of jointed rock slope is effective.
引文
[1]中国科学院武汉岩土力学研究所.海南铁矿南采边坡稳定性报告[R].武汉:中国科学院武汉岩土力学研究所,1994.
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[4]陈占军,朱传云,周小恒.爆破荷载作用下岩石边坡动态响应的FLAC3D模拟研究[J].爆破,2005,22(4):8-13.
[5]Rajinder Bhasin,Amir MKaynia.Static and dynamic simulation of a700 m high rock slope in western Norway[J].Engineering Geology,2004,71(4):213-226.
[6]Zhang Chuhan,Pekau O A,Jin Feng,et al.Application of distinctelement method in dynamic analysis of high rock slopes and blockystructures[J].Soil Dynamics and Earthquake Engineering,1997,16:385-394.
[7]刘亚群,李海波.爆破荷载作用下黄麦岭磷矿岩质边坡动态响应的UDEC模拟研究[J].岩石力学与工程学报,2004,23(11):42-45.
[8]中南工业大学希望爆破工程中心.海南钢铁公司北一露天采场降震爆破技术研究[R].1999.
[9]Itasca.Three dimensional distinct element code:theory and back-ground[M].Minneapolis:Itasca Consulting Group Inc,2003.
[10]Itasca.Three dimensional distinct element code:optional features[M].Minneapolis:Itasca Consulting Group Inc,2003.
[11]Vangelsten B V,Madshus C.Modeling of Joint Properties for shockpropagation analysis[C].In:Proceedings of the joint Singapore-Norway technical workshop on ground shock.Y X ZHOU(eds),Singapore,1999.
[12]王卫华,李夕兵,胡盛斌.模型参数对3DEC动态建模的影响[J].岩石力学与工程学报,2005,24(s1):4790-4797.
[2]Kumsar1 H,Aydan O埁,Ulusay R.Dynamic and static stability as-sessment of rock slopes against wedge failures[J].Rock Mechanicsand Rock Engineering,2000,33(1):31-51.
[3]刘春玲,祁生文.利用FLAC3D分析某边坡地震稳定性[J].岩石力学与工程学报,2004,23(16):2730-2733.
[4]陈占军,朱传云,周小恒.爆破荷载作用下岩石边坡动态响应的FLAC3D模拟研究[J].爆破,2005,22(4):8-13.
[5]Rajinder Bhasin,Amir MKaynia.Static and dynamic simulation of a700 m high rock slope in western Norway[J].Engineering Geology,2004,71(4):213-226.
[6]Zhang Chuhan,Pekau O A,Jin Feng,et al.Application of distinctelement method in dynamic analysis of high rock slopes and blockystructures[J].Soil Dynamics and Earthquake Engineering,1997,16:385-394.
[7]刘亚群,李海波.爆破荷载作用下黄麦岭磷矿岩质边坡动态响应的UDEC模拟研究[J].岩石力学与工程学报,2004,23(11):42-45.
[8]中南工业大学希望爆破工程中心.海南钢铁公司北一露天采场降震爆破技术研究[R].1999.
[9]Itasca.Three dimensional distinct element code:theory and back-ground[M].Minneapolis:Itasca Consulting Group Inc,2003.
[10]Itasca.Three dimensional distinct element code:optional features[M].Minneapolis:Itasca Consulting Group Inc,2003.
[11]Vangelsten B V,Madshus C.Modeling of Joint Properties for shockpropagation analysis[C].In:Proceedings of the joint Singapore-Norway technical workshop on ground shock.Y X ZHOU(eds),Singapore,1999.
[12]王卫华,李夕兵,胡盛斌.模型参数对3DEC动态建模的影响[J].岩石力学与工程学报,2005,24(s1):4790-4797.
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