| 岩石加卸荷破坏细观机理CT实时分析 |
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| 引用本文： | 代革联,李新虎.岩石加卸荷破坏细观机理CT实时分析[J].力学学报,2004,12(1):104-108. |
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| 作者姓名： | 代革联 李新虎 |
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| 作者单位： | 西安科技大学,西安710054 |
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| 基金项目： | 国家自然科学基金(10202019);陕西省教育厅基金(02JK126)资助 |
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| 摘 要： | 利用与CT(computerizedtomography)机配套的专用岩石三轴加载试验设备 ,采用CT实时试验的手段对连续加载试验条件下和卸围压应力作用下砂岩破坏细观机理进行了对比研究。结果表明 ,岩石的卸荷损伤演化破坏具有突发性 ,卸围压破坏导致的扩容比连续加载破坏时大.
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| 关 键 词： | 岩石 损伤扩展机理 CT实时试验 连续加载 卸载 |
| 收稿时间： | 2003-09-08 |
| 修稿时间： | 2003-11-18 |
CT REAL TIME TESTING OF MESO-FAILURE MECHANISMS OF ROCK UNDER LOADING AND UNLOADING CONDITIONS |
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| DAI Gelian,LI Xinhu.CT REAL TIME TESTING OF MESO-FAILURE MECHANISMS OF ROCK UNDER LOADING AND UNLOADING CONDITIONS[J].chinese journal of theoretical and applied mechanics,2004,12(1):104-108. |
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| Authors: | DAI Gelian LI Xinhu |
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| Institution: | Xi'an University of Science and Technology, Xi'an 710054 |
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| Abstract: | A comparative study of meso-failure mechanisms of sandstone under successive loading and unloading conditions is made by using a special triaxial loading equipment corollay to a CT equipment. The CT images obtained show that the unloading failure is explosive, resulting in a dilatancy more than that of succesive loading failure. |
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| Keywords: | Rock Damage propagation mechanism CT real-time testing Successive loading Unloading |
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