不同方式地下爆炸地震耦合效应的数值模拟
|
摘要
通过一种Euler与Lagrange相结合的有限差分法,开展地下爆炸地震耦合效应的数值模拟.比较花岗岩介质中填实和空腔两种爆炸方式在地震耦合效应方面的差异,进一步分析初始空腔大小在填实以及空腔爆炸地震效应中的作用以及空腔爆炸解耦因子随频率的变化特性.计算结果表明,花岗岩介质中完全空腔解耦因子能达到50～60倍.
By using a numerical method developed in this paper,namely coupled Euler/Lagrange method,numerical simulations on seismic coupling effects induced by underground explosion with different explosion modes are carried out.Seismic coupling effects in tamped and cavity explosions in granite were studied.Dependence of decoupling factor on the initial cavity volume and the frequency were examined.It shows that the decoupling factor could reach 50 to 60 for completed cavity decoupling explosions in granite.
By using a numerical method developed in this paper,namely coupled Euler/Lagrange method,numerical simulations on seismic coupling effects induced by underground explosion with different explosion modes are carried out.Seismic coupling effects in tamped and cavity explosions in granite were studied.Dependence of decoupling factor on the initial cavity volume and the frequency were examined.It shows that the decoupling factor could reach 50 to 60 for completed cavity decoupling explosions in granite.
引文
[1]Latter A L,Martinelli E A,Teller E.Seismic scaling law of underground explosions[J].Phys Fluids 1959,(2):280-282.
[2]Stevens J,Rimer N,Xu H,Baker G,et al.Analysis and simulation of cavity-decoupled chemical explosions[C]∥Proceedings of 25th Seismic Research Review,Tucson,Arizona,USA,September 23-25,2003.
[3]Gitterman Y,Hofstetter R,Pinsky V.Source features and scaling of buried and surface experimental explosions in Israel[C]∥Proceedings of the 28th Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-06-5471,2006,1:597-606.
[4]Gitterman Y,Hofstetter R,Pinsky V.Source features and scaling of buried and surface experimental explosions in Israel[C]∥Proceedings of the 29th Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-07-5613,2007,1:571-582.
[5]Rodgers A,Vorobiev O,Petersson A,et al.Toward end-to-end seismic simulations for nuclear explosion monitoring[C]∥Proceedings of the 30h Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-09-05276,2009,1:547-556.
[6]Stevens Jeffry L,Xu Heming,Baker G E.Analysis of shear wave generation by decoupled and partially coupled explosions[C]∥Proceedings of the 29th Annual Monitoring Esearch Review:Ground-Based Nuclear Explosion Technologies,LA-UR-07-5613,2007,1:664-673.
[7]Stevens Jeffry L,Xu Heming,Baker G E.Shear wave generation by decoupled and partially coupled explosions[C]∥Proceedings of the 30th Annual Monitoring Research Review:Ground-Based Nuclear Explosion Technologies,LA-UR-08-05261,2008,1:692-701.
[8]Stevens J L,Xu H.Wave propagation from complex 3D sources using the representation theorem[C]∥Proceedings of the 30hSeismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-09-05276,2009,1:574-581.
[9]王占江.岩土中填实与空腔解耦爆炸的化爆模拟实验研究[D].长沙:中国人民解放军国防科学技术大学,2003.
[10]周钟,王肖均,肖卫国.花岗岩介质中地下爆炸震源函数研究[J].爆炸与冲击,2007,(1):18-25.
[11]朱号锋,靳平,肖卫国.硬岩中地下爆炸震源函数的数值模拟[J].爆炸与冲击,2009,(6):648-653.
[12]劳俊,肖卫国,王肖均.地下空腔解耦爆炸的数值模拟研究[J].爆炸与冲击,2009,5:535-541.
[13]Sharpe J A,The production of elastic waves by explosion pressures,I.Theory and empirical observations[J],Geophysics,1942,(7):144-154.
[14]Chen Shengchang,Ma Zaitian,Wu Ru-Shan.Wave equation method for wavefield propagation path tracing[J].Chinese JComput Phys,2008,25(2):186-190.
[15]Sun Zhangqing,Sun Jianguo,Han Fuxing.Traveltime computation using fast marching method under complex topographicalcouditions[J].Chinese J Comput Phys,2010,27(2):281-286.
[16]Mueller R A,Murphy J R.Seismic characteristics of underground nuclear detonations Part I.Seismic spectrum scaling[J].Bull Seism Soc Am,1971,61:1675-1692.
[17]Haskell N A.Analytic approximation for the elastic radiation from a contained underground explosion[J].J Geophys Res,1967,72:2583-2587.
[2]Stevens J,Rimer N,Xu H,Baker G,et al.Analysis and simulation of cavity-decoupled chemical explosions[C]∥Proceedings of 25th Seismic Research Review,Tucson,Arizona,USA,September 23-25,2003.
[3]Gitterman Y,Hofstetter R,Pinsky V.Source features and scaling of buried and surface experimental explosions in Israel[C]∥Proceedings of the 28th Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-06-5471,2006,1:597-606.
[4]Gitterman Y,Hofstetter R,Pinsky V.Source features and scaling of buried and surface experimental explosions in Israel[C]∥Proceedings of the 29th Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-07-5613,2007,1:571-582.
[5]Rodgers A,Vorobiev O,Petersson A,et al.Toward end-to-end seismic simulations for nuclear explosion monitoring[C]∥Proceedings of the 30h Seismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-09-05276,2009,1:547-556.
[6]Stevens Jeffry L,Xu Heming,Baker G E.Analysis of shear wave generation by decoupled and partially coupled explosions[C]∥Proceedings of the 29th Annual Monitoring Esearch Review:Ground-Based Nuclear Explosion Technologies,LA-UR-07-5613,2007,1:664-673.
[7]Stevens Jeffry L,Xu Heming,Baker G E.Shear wave generation by decoupled and partially coupled explosions[C]∥Proceedings of the 30th Annual Monitoring Research Review:Ground-Based Nuclear Explosion Technologies,LA-UR-08-05261,2008,1:692-701.
[8]Stevens J L,Xu H.Wave propagation from complex 3D sources using the representation theorem[C]∥Proceedings of the 30hSeismic Research Review:Ground-Based Nuclear Explosion Monitoring Technologies,LA-UR-09-05276,2009,1:574-581.
[9]王占江.岩土中填实与空腔解耦爆炸的化爆模拟实验研究[D].长沙:中国人民解放军国防科学技术大学,2003.
[10]周钟,王肖均,肖卫国.花岗岩介质中地下爆炸震源函数研究[J].爆炸与冲击,2007,(1):18-25.
[11]朱号锋,靳平,肖卫国.硬岩中地下爆炸震源函数的数值模拟[J].爆炸与冲击,2009,(6):648-653.
[12]劳俊,肖卫国,王肖均.地下空腔解耦爆炸的数值模拟研究[J].爆炸与冲击,2009,5:535-541.
[13]Sharpe J A,The production of elastic waves by explosion pressures,I.Theory and empirical observations[J],Geophysics,1942,(7):144-154.
[14]Chen Shengchang,Ma Zaitian,Wu Ru-Shan.Wave equation method for wavefield propagation path tracing[J].Chinese JComput Phys,2008,25(2):186-190.
[15]Sun Zhangqing,Sun Jianguo,Han Fuxing.Traveltime computation using fast marching method under complex topographicalcouditions[J].Chinese J Comput Phys,2010,27(2):281-286.
[16]Mueller R A,Murphy J R.Seismic characteristics of underground nuclear detonations Part I.Seismic spectrum scaling[J].Bull Seism Soc Am,1971,61:1675-1692.
[17]Haskell N A.Analytic approximation for the elastic radiation from a contained underground explosion[J].J Geophys Res,1967,72:2583-2587.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心