闫顺尚,王玲,董方营,等.基于电−磁法联合勘探的火烧区范围及富水性的预测[J].煤田地质与勘探,2022,50(2):132−139. DOI: 10.12363/issn.1001-1986.21.05.0290
引用本文: 闫顺尚,王玲,董方营,等.基于电−磁法联合勘探的火烧区范围及富水性的预测[J].煤田地质与勘探,2022,50(2):132−139. DOI: 10.12363/issn.1001-1986.21.05.0290
YAN Shunshang,WANG Ling,DONG Fangying,et al.Prediction of burnt rock areas and water abundance based on the Electrical-Magnetic method[J].Coal Geology & Exploration,2022,50(2):132−139. DOI: 10.12363/issn.1001-1986.21.05.0290
Citation: YAN Shunshang,WANG Ling,DONG Fangying,et al.Prediction of burnt rock areas and water abundance based on the Electrical-Magnetic method[J].Coal Geology & Exploration,2022,50(2):132−139. DOI: 10.12363/issn.1001-1986.21.05.0290

基于电−磁法联合勘探的火烧区范围及富水性的预测

Prediction of burnt rock areas and water abundance based on the Electrical-Magnetic method

  • 摘要: 为精确查明矿区火烧岩体的分布范围及其富水程度,综合考虑地质体电−磁性特征,组合一套新型火烧区边界及富水性预测勘探手段。采用高精度磁测、瞬变电磁法、高密度电法3种物探方法联合勘探,将其应用于新疆沙吉海一号井田火烧区勘探,并与之前物探结果进行对比。结果表明,火烧区南部边界较原勘探边界发生较小移动;研究区总体富水性较弱,富水区主要集中在火烧区南部边界及以南,在B10煤层附近圈定了9个火烧富水区,编号为Y1—Y9;拟设计钻孔位置均较合理,为下一步钻探施工提供可靠的物探资料依据。多种物探方法相互结合验证性较好,为今后火烧岩地区火烧范围及富水性探查提供实践依据。

     

    Abstract: For the purpose of accurately ascertaining the distribution range and water abundance degree of the burnt rock mass in the mining area, a new set of methods for prediction and exploration of burnt area boundaries and water-richness is presented based on overall consideration of the electrical-magnetic characteristics of the geological body. Three geophysical prospecting methods including high-precision magnetic survey, transient electromagnetic method and high-density electrical method are used for joint exploration are applied to the exploration of the burnt area of Shajihai No.1 Minefield in Xinjiang. The results show that the southern boundary of the burned area moves slightly compared with the original exploration boundary. The study area is generally weak in water richness, and the water abundance areas are mainly concentrated in the southern boundary and south of the burned area. Nine burned water abundance areas are delineated near the B10 coal seam, numbered Y1-Y9 respectively. The proposed borehole location is reasonable, which provides reliable geophysical data basis for the next drilling construction. The combination of multiple geophysical methods is well verified, providing a practical basis for future burnt range and water abundance exploration in burnt rock areas.

     

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