| 煤岩变形破裂电磁辐射的实验研究 |
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| 引用本文： | 王恩元,何学秋.煤岩变形破裂电磁辐射的实验研究[J].地球物理学报,2000,43(1):131-137. |
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| 作者姓名： | 王恩元 何学秋 |
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| 作者单位： | 中国矿业大学采矿工程系,徐州,221008 |
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| 基金项目： | 国家自然科学基金!59874028，教育部“跨世纪优秀人才培养计划”基金，国家“九五”攻关计划 |
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| 摘 要： | 对受载煤体变形破裂产生电磁辐射进行了实验研究及规律分析，并对煤岩变形破裂电磁辐射的机理进行了探讨分析．研究结果表明，煤体变形破裂时能够产生电磁辐射，电磁辐射信号与声发射信号并非严格同步，电磁辐射信号较声发射信号丰富，电磁辐射与煤岩体的变形破裂过程密切相关．煤岩电磁辐射技术在揭示煤岩变形破裂机理，预测、预报地震，矿山煤岩灾害动力现象及岩石混凝土建筑稳定性方面有着非常广泛的应用前景．
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| 关 键 词： | 煤岩变形破裂 电磁辐射 声发射 |
| 文章编号： | 0001-5733(2000)01-0131-07 |
| 修稿时间： | 1999年1月27日 |
AN EXPERIMENTAL STUDY OF THE ELECTROMAGNETIC EMISSION DURING THE DEFORMATION AND FRACTURE OF COAL OR ROCK |
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| WANG EN-YUAN,HE XUE-QIU.AN EXPERIMENTAL STUDY OF THE ELECTROMAGNETIC EMISSION DURING THE DEFORMATION AND FRACTURE OF COAL OR ROCK[J].Chinese Journal of Geophysics,2000,43(1):131-137. |
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| Authors: | WANG EN-YUAN HE XUE-QIU |
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| Abstract: | Experiments of electromagnehc emission (EME) during the coaldeformation and fracture have been conducted. Its regularity is studied, and themechanism is discussed and analyzed. It is proved that EME can be produced duringthe deformation and fracture of coal; EME and acoustic emission (AE) are not strictlysynchronous; EME signals are more than AE signals, and closely related to thedeformation and fracture of coal or rock. EME can be used to discover thedeformation and fracture mechanism of coal or rock and forecast the earthquake,catastrophic dynamical phenomena of coal or rock in mine and the building stabilityof rock and concrete. |
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| Keywords: | Deformation and fracture of coal or rock Electromagnetic emission Acoustic emission |
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