| 冲击煤体扩容特性的实验研究 |
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| 引用本文： | PAN Li-you,张文革,杨慧珠. 冲击煤体扩容特性的实验研究[J]. 山东科技大学学报(自然科学版), 2005, 24(1): 18-20 |
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| 作者姓名： | PAN Li-you 张文革 杨慧珠 |
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| 作者单位： | 山东科技大学,资源与环境工程学院,山东,泰安,271019;清华大学,工程力学系,北京,100084 |
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| 基金项目： | 山东省自然科学基金资助项目 (Y2 0 0 2F1 0 ) |
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| 摘 要： | 对硬煤、软煤和中硬煤的试样进行了强度、破坏过程和破坏类型的试验，分析了冲击煤体的破坏特征，重点研究煤体由加栽到破坏全过程的扩容演化规律。研究结果表明，不同强度的冲击煤体均出现扩容现象，冲击煤体的扩容呈现为稳定与非稳定变化的特征，冲击煤体的扩容具有突变特征。
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| 关 键 词： | 冲击煤体 扩容 破坏过程 突变 |
| 文章编号： | 1672-3767(2005)01-0018-03 |
| 修稿时间： | 2004-08-15 |
Experimental Research on Volume-expanding Properties of Impact Coal-mass |
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| PAN Li-you,ZHANG Wen-ge,YANG Hui-zhu. Experimental Research on Volume-expanding Properties of Impact Coal-mass[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2005, 24(1): 18-20 |
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| Authors: | PAN Li-you ZHANG Wen-ge YANG Hui-zhu |
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| Affiliation: | PAN Li-you~ |
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| Abstract: | The experiments of strength, destruction process and destruction type for samples of hard coal, soft coal and medium-hard coal are carried out, and the destructive characteristics of impact coal-mass,especially the law of volume-expanding in whole process from the load to be set on to destruction of coal-mass, are analyzed. The research result demonstrated that the volume-expanding phenomena would occur in coal-masses with different strengths and the volume-expanding of impact coal-mass is characterized by the stable and non-stable changes, and the volume-expanding of impact coal-mass possesses the mutation characteristics. |
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| Keywords: | impact coal-mass volume-expanding destruction process mutation |
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