| 温度对岩石的弹性波速和声发射的影响 |
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| 引用本文： | 李纪汉,刘晓红,郝晋昇.温度对岩石的弹性波速和声发射的影响[J].地震学报,1986,8(3):293-300. |
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| 作者姓名： | 李纪汉 刘晓红 郝晋昇 |
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| 作者单位： | 国家地震局地球物理研究所 |
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| 摘 要： | 在实验室中研究了温度变化引起大理岩和辉长岩的波速变化和声发射活动.研究揭示了岩石热开裂的波速效应,并发现热开裂波速效应具有记忆性.实验同时表明岩石热开裂的波速效应,与过去被其他作者发现的热开裂声发射效应之间有着密切的关系.这些结果有助于阐明岩石热开裂的实质.
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TEMPERATURE EFFECTS ON THE ELASTIC WAVE VELOCITY AND ACOUSTIC EMISSION OF ROCKS SAMPLES |
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| Affiliation: | Institute of Geophysics, State Seismological Bureau |
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| Abstract: | The change of elastic wave velocity and of activity of acoutic emission of marble and gabbro samples caused by change of temperature was studied in the laboratory. The effect of thermal cracking on wave velocity was revealed and it is discovered that this effect is memorable. The experiments also showed that the effect of thermal cracking on wave velocity is related closely with that on acoustic emission discovered by other authors. These results can help clear the nature of thermal cracking of rocks. |
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