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在0.01~100Hz频率范围内,采用粘弹谱仪进行了3种孔隙度的干燥和饱和砂岩的动态力学频率谱和温度谱试验,取得衰减和模量在不同温度峰的频率响应.饱和砂岩的衰减随砂岩孔隙度的增加而增大;复模量随孔隙度的增加亏损增大,频散程度增强;并对频率谱和温度谱的对应关系进行了讨论.
In the frequency range from 0.01 to 100Hz, dynamic mechanical frequency spectrum and temperature spectrum test of three kinds of porosity dry and saturated sandstone were carried out with viscoelastic spectrometer, and the frequency response of attenuation and modulus at different temperature peaks was obtained. The attenuation of saturated sandstone increases with the increase of sandstone porosity. The complex modulus increases with the increase of porosity, and the degree of dispersion increases. The corresponding relationship between frequency spectrum and temperature spectrum is also discussed.