应力波斜入射黏弹性节理的传播规律

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摘要应力波在岩体中传播规律的研究是岩石动力学的重要课题之一。基于应力和位移皆不连续的假定，针对充填节理的黏弹性特性，建立P波和S波斜入射单个充填节理的频域形式的透反射系数方程组。通过数值计算和参数分析，进而讨论入射角、入射波频率以及节理刚度等参数对应力波斜入射充填节理透反射规律的影响，而入射波参数和充填节理动态特性参数的合理选取是确定透反射系数的关键。

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关键词 ：岩石力学, 波传播, 填充节理, 透反射系数, Snell定律

Abstract：The study of stress wave propagation in rock mass is an important topic in rock mechanics. Based on the assumption of displacement and stress discontinuity，for the visco-elastic behavior of filled joint，the transmission and reflection coefficient equations of P-wave and S-wave in the frequency domain are respectively derived. By numerical calculation and parameter analysis，the impact of parameters on the law of stress wave propagation is studied，such as the incident angle，the incident wave frequency and joint stiffness. Reasonable parameters selections of incident wave and filled joint have significant effects on the determination of transmission and reflection coefficient.

Key words： rock mechanics wave propagation filled joint reflection and transmission coefficients Snell?s law

收稿日期: 2012-04-16

引用本文:

刘立波，李建春，李海波，刘婷婷. 应力波斜入射黏弹性节理的传播规律[J]. 岩石力学与工程学报, 2012, 31(s2): 3593-3598.
LIU Libo，LI Jianchun，LI Haibo，LIU Tingting. PROPAGATION LAW OF OBLIQUE INCIDENCE OF STRESS WAVE ACROSS A VISCOELASTIC JOINT. , 2012, 31(s2): 3593-3598.

链接本文:

http://www.rockmech.org/CN/Y2012/V31/Is2/3593

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