【摘要】 地震波在不同的岩石和岩体结构传播时具有不同的波速,采用Kelvin-Voigt体为粘弹性介质模型,研究均匀粘弹性体中波速和衰减对介质的力学参数变化的敏感性,通过试验,研究了波速和衰减对结构面刚度变化的敏感性。结果表明,衰减比波速对岩石力学参数和结构面刚度的变化更敏感,因此衰减系数更适合作为波动探测的表征量。更多还原

【Abstract】 Wave velocity is different when seismic wave transmit in different rock and rock mass structure,adopt Kelvin-Voigt as viscoelastic medium model,make research on the sensibility of wave velocity and attenuation to mechanics parameter variation of medium in uniform viscoelastic body,make research on the sensibility of wave velocity and attenuation to structural plane stiffness variation through test.The result shows attenuation is more sensitive to the variation of rock mechanics parameter and structural plane stiffness than wave velocity,so attenuation coefficient is more suitable as token state of fluctuation detection.更多还原