| 岩石受力状态对弹性波传播速度影响的初步研究 |
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| 引用本文： | 刘盛东,杨玉岷.岩石受力状态对弹性波传播速度影响的初步研究[J].中国煤田地质,1996,8(3):48-51. |
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| 作者姓名： | 刘盛东 杨玉岷 |
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| 作者单位： | 淮南矿业学院，淮南煤电总公司新集煤矿 |
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| 摘 要： | 岩石所受的三向应力状态对其弹性波传播性质有一定的影响，此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。为保证岩石中存在微隙，对部分试样还作了高温预热处理。实验结果表明，泥质砂岩和泥岩的Ｖ＿ｐ／Ｖ＿ｓ值几乎保持不变，但坚硬砂岩的Ｖ＿ｐ／Ｖ＿ｓ值曲线却在应力达破坏荷载的９０％左右时出现下凹现象，经热处理的硬砂岩的这一下凹现象则更突出。
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| 关 键 词： | 弹性波速，岩石，应力状态，V＿p／V＿s比值 |
Experiment on Influence of Stress States on Elastic Waves Velocity |
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| Liu Shengdong.Experiment on Influence of Stress States on Elastic Waves Velocity[J].Coal Geology of China,1996,8(3):48-51. |
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| Authors: | Liu Shengdong |
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| Abstract: | The influence of triaxiale stress states on the elastic waves velocities of clayey sandstone,claystone and hard siliceous sandstone has been determined by experiments.Some samples are previ-ously treated with heat to intendify crack prodution.Claystone and clayey sandstone show hardly anychanges in the V_p/V_s ratio.For siliceous sandstone there is a minimum in the ratio of the wave veloci-ties at sbout 90%of the failure stress.This minimum especially present in thesiliceous santone previ-ously treated with heat. |
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| Keywords: | the elastic wave velocity stress state V_p/V_s ratio |
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