| 软岩膨胀崩解试验及分形机理 |
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| 引用本文： | 苏永华,赵明华,刘晓明.软岩膨胀崩解试验及分形机理[J].岩土力学,2005,26(5):728-732. |
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| 作者姓名： | 苏永华 赵明华 刘晓明 |
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| 作者单位： | 湖南大学 土木工程学院，长沙 410082 |
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| 基金项目： | 湖南大学人才基金(No.531103011143)，自然科学基金(No.521101619)。 |
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| 摘 要： | 在室内崩解试验和大气条件模拟的渐进崩解试验中，通过跟踪崩解过程物碎屑的颗粒级别变化发现，软岩膨胀崩解过程是一个多重分形过程。在崩解达到一定程度后，崩解碎屑物的颗粒级别不再发生变化，软岩吸水膨胀崩解停止，此时崩解物的分数维亦达到一个不再变化的临界值。该临界值可用来定量表征软岩崩解的机理。该结论对工程实际具有指导意义。
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| 关 键 词： | 软岩 膨胀崩解 分数维 碎屑物 |
| 文章编号： | 1000-7598-(2005)05-0728-05 |
| 收稿时间： | 2004-02-02 |
| 修稿时间： | 2004年2月2日 |
Research of fractal mechanism for swelling & collapse of soft rock |
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| SU Yong-hua,ZHAO Ming-hua,LIU Xiao-ming.Research of fractal mechanism for swelling & collapse of soft rock[J].Rock and Soil Mechanics,2005,26(5):728-732. |
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| Authors: | SU Yong-hua ZHAO Ming-hua LIU Xiao-ming |
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| Institution: | College of Civil Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | Through grain-size analysis of scrap for soft rock that was produced during test of collapsing in laboratory and test of gradual collapsing in field atmospheric condition; it was found that absorbing water and collapsing progress of soft rock is also a progress that fractal dimension of soft rock scrap change successively. When collapsing of soft rock arrived to some extent, grade of scrap of soft rock collapsed is no more change; absorbing water and collapsing of soft rock stopped; fractal dimension of scrap of soft rock collapsed incline to a critical value. The critical value opens out fractal mechanics of soft rock when it swells and collapses after absorbing water. The above-mentioned conclusion exists a guidance significance to engineering. |
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| Keywords: | soft rock swell and collapse fractal dimension scrap |
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