不同粒径大理岩样声学特性的研究

王开林, 杨圣奇, 苏承东

王开林, 杨圣奇, 苏承东. 不同粒径大理岩样声学特性的研究[J]. 煤田地质与勘探, 2004, 32(2): 30-32.
引用本文: 王开林, 杨圣奇, 苏承东. 不同粒径大理岩样声学特性的研究[J]. 煤田地质与勘探, 2004, 32(2): 30-32.
WANG Kai-lin, YANG Sheng-qi, SU Cheng-dong. Study on the acoustic property of marble specimens with different grains[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 30-32.
Citation: WANG Kai-lin, YANG Sheng-qi, SU Cheng-dong. Study on the acoustic property of marble specimens with different grains[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 30-32.

 

不同粒径大理岩样声学特性的研究

基金项目: 

河南省创新人才资助项目

详细信息
    作者简介:

    王开林(1979-),男,山东胶南人,焦作工学院硕士研究生,采矿工程专业,从事岩石力学方面的研究

  • 中图分类号: TD313

Study on the acoustic property of marble specimens with different grains

  • 摘要: 基于不同粒径大理岩样进行了超声波测试,研究了浸水时间和宏观裂隙对波速的影响规律,以及岩样声学参数的离散程度。结果表明,浸水时间对岩样的纵波速度有很大的影响,但对横波速度影响甚微;宏观裂隙的存在降低了岩样的纵波速度,波幅降低程度与岩样破坏程度有关;随着岩石平均粒径的增大,岩石的声学参数先减小后增大,并非单调关系,而且动态泊松比的变化幅度明显高于其他声学参数,不能作为材料的力学参数表征岩石的变形特性。
    Abstract: Based on the supersonic measurement results of marble specimens with different grains,the influence law of soaking time and macroscopical fissure on wave speed,and the dispersion of acoustic parameters of specimens were carried out.The results show that soaking time has great influence on longitudinal wave speed of marble specimens,but no clear effect on the transverse wave speed.The macroscopical fissures can reduce the longitudinal wave speed,but the extent of reducing has relation with the failure extent of specimens.With the increase of specimens' average grain,the acoustic parameters of rock isn't a monotone function,and they reduce firstly and then increase,what's more,the changeable scope of dynamic Poisson's Ratio is higher than one of other acoustic parameters,and so it can't show the deformation property of rock as the mechanical parameter of material.
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出版历程
  • 收稿日期:  2003-05-18
  • 网络出版日期:  2023-03-17

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