| 杨阳,刘路,葛春雷.煤层风氧化带的物理、电性特征及瞬变电磁法探测实例分析[J].矿产勘查,2025,16(11):2454-2463 |
| 煤层风氧化带的物理、电性特征及瞬变电磁法探测实例分析 |
| Physical and electromagnetic characteristics of weathered and oxidized zones in coal seams and a case study using the transient electromagnetic method |
| 投稿时间：2024-05-03 |
| DOI：10.20008/j.kckc.202511006 |
| 中文关键词: 煤层 风氧化带 物理特征 电性特性 瞬变电磁法 |
| 英文关键词: coal seam weathered and oxidized zone physical characteristics electrical characteristics tran.sient electromagnetic method |
| 基金项目:本文受广西自然科学基金项目(2022GXNSFBA035600)资助。 |
|
| 摘要点击次数: 493 |
| 全文下载次数: 126 |
| 中文摘要: |
| 煤层被风化或氧化后，会破坏煤质并造成煤炭资源的浪费，同时更给煤矿的安全生产带来隐患，探测煤层风氧化带范围具有重要意义。本文总结了煤层风氧化带的物理及电性特征，简要叙述了瞬变电磁法(TEM)的原理及特点，并以山西石新煤业的勘探工程为例，介绍了瞬变电磁法探测煤层风氧化带的方法。研究表明，煤层被风氧化后，引起二次场电位、电阻率值这两个电性参数产生异常特征，根据这些异常特征可以有效探测煤层风氧化带范围。通过工程实例证明，利用瞬变电磁法探测煤层风氧化带的范围是可行有效的。 |
| 英文摘要: |
| After coal seam is weathered or oxidized, the coal quality will be destroyed, resulting in the waste ofcoal resources, and it will also bring hidden dangers to the safety production of coal mines. It is of great significanceto detect the range of weathered or oxidized zones in coal seams. This paper summarizes the physical and electricalcharacteristics of weathered or oxidized zones in coal seams, and briefly introduces the method of transient electro.magnetic method (TEM) in detecting weathered or oxidized zones in coal seams by taking a case study of ShanxiShixin Coal Mine as an example. The research found that, after a coal seam is weathered or oxidized, two electricalparameters such as secondary field potential and resistivity will produce abnormal characteristics, according towhich the range of the weathered or oxidized zones in coal seams can be effectively detected. The engineering ex.ample proves that it is feasible and effective to use TEM to detect the range of weathered or oxidized zones in coalseams. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |