| 徐晓培.瞬变电磁方法在山西某煤矿区水患调查的应用[J].地质与勘探,2019,55(2):579-584 |
| 瞬变电磁方法在山西某煤矿区水患调查的应用 |
| Application of the transient electromagnetic method to flooding survey in a coal mining area of Shanxi Province |
| 投稿时间：2018-08-19 修订日期：2019-01-03 |
| DOI：10.12134/j.dzykt.2019.02.012 |
| 中文关键词: 瞬变电磁法 煤矿采空区 水患调查 山西 |
| 英文关键词: transient electromagnetic method, worked-out area, flooding investigation,Shanxi Province |
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| 摘要点击次数: 1544 |
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| 中文摘要: |
| 由于历史原因，煤炭资源整合矿区老窑采空区分布及积水情况不清，成为煤矿安全生产的重大隐患。利用煤炭采空区电性特征，选择以瞬变电磁勘探为主的大面积勘探，可以发挥其高效率、高精度的特点，辅以其它勘探手段进行综合勘查, 能快速有效地确定采空区的位置及赋水情况。本次研究是采用瞬变电磁勘探为主的勘探方法对山西一煤矿区水患情况进行调查。首先根据矿区的测井资料对地电条件进行分析，通过针对性的试验，选择合理的施工参数。利用多种方法将采集数据进行处理分析，得到反应不同地质特征的剖面及平面图件，特别是利用专用软件得到煤层富水性目标分析对比图，更明确直观地反应采空区的位置及富水性。此次水患调查，基本查明了矿区内采空区及积水区位置、范围等情况,部分分析成果得到钻孔验证，证明采用瞬变电磁法勘探为主的勘查手段，在本矿区进行水患调查成果显著，为矿井的水患防治工作提供了可靠的资料依据。 |
| 英文摘要: |
| Due to historical reasons, the distribution of old worked-out areas and accumulation of water in coal resource integration mining regions remains unclear, which has become a major hidden danger in the safe production of coal mining. To solve this problem, by utilizing the electrical characteristics of coal worked-out areas, large-area exploration to such areas can be conducted using the transient electromagnetic method. It has high efficiency and high precision, and permits to determine locations of worked-out areas and water existence rapidly in combination other exploration methods. This paper presents a case of such exploration in a coal mining area in Shanxi Province. Firstly, according to the logging data of the mining area, the geoelectric conditions are analyzed, and the reasonable construction parameters are selected through targeted tests. The collected data is processed and analyzed by various methods to obtain the profiles of different geological characteristics. Especially the specialized software is used to generate comparison plots for the targeted analysis of the water-rich of coal seams, and to demonstrate the location and water-richness of the worked-out areas more clearly and intuitively. This investigation basically determined the location and scope of the worked-out areas and the stagnant water areas in the mining area. Some of the analysis results were verified by drilling, which proved that the exploration method based on the transient electromagnetic method has achieved remarkable results in this mine area. The results of this research provide technical support for safe production in the mining area. |
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