| 卸压加载方法在测量冲击能量指数中的应用 |
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| 引用本文： | 曾范永,李成全.卸压加载方法在测量冲击能量指数中的应用[J].煤田地质与勘探,2011,39(5):52-54. |
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| 作者姓名： | 曾范永 李成全 |
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| 作者单位： | 辽宁工程技术大学力学与工程学院, 辽宁 阜新 123000 |
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| 摘 要： | 为了测定煤岩试样的冲击能量指数KE，在没有电液伺服试验机和刚性试验机的条件下，开发了卸压加载方法并利用该方法设计了一套实验装置。利用该实验装置对通化矿务局煤矿现场所取煤样进行冲击能量指数KE的测定，得出了一定的数据并绘制出应力-应变全程曲线，验证了卸压加载方法的可行性。结合其他方法测出的弹性能量指数、动态破坏时间及单轴抗压强度，可以判断相关矿井能否发生冲击地压灾害。
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| 关 键 词： | 冲击能量指数 卸压加载 应力-应变全程曲线 冲击地压 |
| 收稿时间： | 2010-10-13 |
Application of unloading and loading method in measuring bursting energy index |
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| ZENG Fanyong,LI Chengquan.Application of unloading and loading method in measuring bursting energy index[J].Coal Geology & Exploration,2011,39(5):52-54. |
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| Authors: | ZENG Fanyong LI Chengquan |
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| Institution: | College of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China |
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| Abstract: | In order to measure the bursting energy index KE of coalrock samples,the method of unloading and loading was exploited and an experimental unit was designed based on it without loop electric-hydraulic servo-controlled fatigue testing machine and stiffness test machine.With this device,the bursting energy index KE of samples collected from a coal mine of Tonghua Mining Administration was measured.The stress and strain curve was drawn according to experimental data,and it demonstrated the feasibility of the m... |
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| Keywords: | bursting energy index unloading and loading stress and strain curve impact ground pressure |
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