应力波峰值变化与岩体结构关系的试验研究
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摘要
选择了3种有代表性的岩体结构进行冲击试验,分析研究了波形最大峰值变化与岩体结构的关系。试验结果表明:震动峰值随空间衰减、震动峰值延时及其离散性变化均能有效反映岩体结构特点和受扰动程度,也能反映岩体的各向异性。
Three representative species were chosen for impact tests on rock mass structure.The relationship between variation of peak value and rock mass structure is analyzed and studied.The experiment results indicate that the attenuation of vibration peak value with special distribution,time delay at the vibration peak value and discreteness change,all reflect rock mass structure and interference degree,as well as anisotropy of rock mass.
Three representative species were chosen for impact tests on rock mass structure.The relationship between variation of peak value and rock mass structure is analyzed and studied.The experiment results indicate that the attenuation of vibration peak value with special distribution,time delay at the vibration peak value and discreteness change,all reflect rock mass structure and interference degree,as well as anisotropy of rock mass.
引文
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[2]李夕兵.论岩体软弱结构而对应力波传播的影响[J].爆炸与冲击,1993,13(4):334-342.
[3]汪明武,王鹤龄.锚固体系无损检测的研究[J].岩土工程学报,2001,23(1):109-113.
[4]李宁.节理岩体在动荷载作用下的有限元分析[J].岩土工程学报,1994,16(1):29-38.
[5]Roy S,Pyrak-Nolte L J.Interface wave propagating along tensile frac-tures in dolomite[J].Geophysical Research Letters,1995,22(20):2773-2777.
[6]Pyrak-Nolte L J.The seismic response of fractures and the interrela-tion among fracture properties[J].International Journal of Rock Me-chanics and Mining Sciences,1996,33(8):787-802.
[7]卢文波.应力波与可滑移岩石界面间的相互作用研究[J].岩土力学,1996,17(3):70-75.
[8]崔新壮,陈士海,刘德成.在裂隙岩体中传播的应力波的衰减机理[J].工程爆破,1999,5(1):18-21.
[9]高文蛟.爆炸应力波入射一定厚度结构面时透射系数分析[J].矿冶工程,2001,21(1):16-18.
[10]李建军,段祝平.岩体中的节理裂隙对爆破影响的试验研究[J].2005,25(5):1-3.
[11]李青锋,李兴华,巫静波.应力波法无损检测煤矿锚索锚固质量的研究[J].矿冶工程,2007,27(6):1-3.
[12]李振春,王清振.地震波衰减机理及能量补偿研究综述[J].地球物理学进展,2007,22(4):1147-1152.
[13]王玉杰,梁开水,田新邦.周宁水电站地下厂房开挖爆破地震波衰减规律的研究[J].岩石力学与工程学报,2005,24(22):4111-4114.
[14]王德胜,龚敏,杜金科.孟家狗硐室爆破地震测试[J].爆破,2004,21(3):96-98.