| 加卸荷对岩石弱化破坏的影响 |
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| 引用本文： | 张伟,曹国云,刘祥梅.加卸荷对岩石弱化破坏的影响[J].矿业工程,2005,3(6):27-28. |
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| 作者姓名： | 张伟 曹国云 刘祥梅 |
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| 作者单位： | 北京科技大学,北京,100083;西南师范大学,重庆,400715 |
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| 摘 要： | 在岩石试样的加卸荷试验的基础上,结合工程实际,研究了加卸荷对岩石弱化破坏的影响.研究表明,加卸荷可以造成岩石试样的破坏;在增加轴向应力或减小最小主应力的条件下,岩石试样的变形会随之增大;卸荷破坏时岩石的强度较加荷破坏时更低.
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| 关 键 词： | 岩石 卸荷 加荷 破坏 |
| 文章编号： | 1671-8550（2005）06-0027-02 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005年6月13日 |
Influence of load-increment and load-decrement on breakage of rock due to its weakening |
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| ZHANG Wei,CAO Guo-yun,LIU Xiang-mei.Influence of load-increment and load-decrement on breakage of rock due to its weakening[J].Mining Engineering,2005,3(6):27-28. |
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| Authors: | ZHANG Wei CAO Guo-yun LIU Xiang-mei |
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| Abstract: | Based on load-increment and load-decrement break test of rock sample and according to concrete condition of engineering,the influences of load-increment and load-decrement on breakage of rock due to its weakening are studied.The study shows: both load-increment and load-decrement can cause breakage of rock sample;the deformation of rock sample is more serious when increasing axial stress or decreasing minimum main-stress;the rock strength by load-decrement break is lower than that by load-increment break. |
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| Keywords: | rock load- decrement load- increment breakage |
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