| 磁法在煤火探测中的应用 |
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| 引用本文： | 朱晓颖,于长春,熊盛青,陈斌. 磁法在煤火探测中的应用[J]. 物探与化探, 2007, 31(2): 115-119 |
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| 作者姓名： | 朱晓颖 于长春 熊盛青 陈斌 |
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| 作者单位： | 1. 中国国土资源航空物探遥感中心,北京,100083;中国地质科学院矿产资源研究所,北京,100037
2. 中国国土资源航空物探遥感中心,北京,100083 |
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| 基金项目： | 在研究期间,中国国土资源航空物探遥感中心提供了便利的工作条件和技术支持,中国地质科学院矿产资源研究所吕庆田及刘光海研究员、中国地质大学张贵宾教授对本文的修改提供了宝贵的意见和建议,在此表示诚挚的谢意. |
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| 摘 要： | 对采自宁夏汝箕沟煤田上覆盖层的原岩样品在温度作用下的磁性变化进行了系统研究.通过分析煤火区不同燃烧阶段围岩的温度变化情况,对原岩样品进行了模拟“燃烧”试验,试验结果表明,岩石磁性在不同温度作用条件下存在明显差异,从而从岩石磁性的角度讨论了磁法勘探圈定煤田火烧区的可行性.最后,采用人机交互法对地面实测磁异常剖面进行反演,有效地圈定了煤火区着火点的位置及范围.
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| 关 键 词： | 磁化率 磁化强度 磁法 煤火 |
| 文章编号： | 1000-8918（2007）02-0115-05 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005-11-212006-12-01 |
THE APPLICATION OF THE MAGNETIC METHOD TO THE DETECTION OF UNDERGROUND COAL FIRES |
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| ZHU Xiao-ying,YU Chang-chun,XIONG Sheng-qing,CHEN Bin. THE APPLICATION OF THE MAGNETIC METHOD TO THE DETECTION OF UNDERGROUND COAL FIRES[J]. Geophysical and Geochemical Exploration, 2007, 31(2): 115-119 |
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| Authors: | ZHU Xiao-ying YU Chang-chun XIONG Sheng-qing CHEN Bin |
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| Affiliation: | 1. China Aerogeophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China; 2. Institute of Mineral Resources, CAGS Beijing 100037, China |
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| Abstract: | Systematic investigations were conducted on the rock samples collected from the Ruqigou coalfield in Ningxia. As the rock temperatures vary with the combustion degree, the authors made a serial of calefaction experiments on the rock samples. The results demonstrate that the rock magnetism varies with temperature. The feasibility of applying the magnetic method to detecting the underground coal fires was studied and,in addition,the human-computer interactive inversion algorithm was used to process the measured data. The inversion result fits the measured data well and can determine the combustion center and delineate the coal fire area effectively. |
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| Keywords: | susceptibility magnetic method magnetization intensity coal fire |
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