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现代矿业 ›› 2024, Vol. 40 ›› Issue (04): 159-.

• • 上一篇    下一篇

瞬变电磁法在某煤矿工作面水害超前预测中的应用

针对某煤矿工作面水害勘探问题,首先分析了区域内水文和地质情况,再根据瞬变电
磁法基本原理,制定了工作面物探方案,并对物探结果进行反演分析。分析结果表明,工作面上部积
水区位于走向400~1 200 m,是上覆煤层的采空区呈东低西高的特征导致。经过钻探,对积水区边界
进行验证,确定积水区域为工作面走向420~1 200 m,根据出水特征分析,水源确为老空水。钻探结果
和物探结果基本一致。
  

  1. 山西煤炭运销集团大同有限公司
  • 出版日期:2024-04-15 发布日期:2024-08-13

Application of Transient Electromagnetic Method in Advanced Prediction of Water Disaster
in a Coal Mine Working Face

Aiming at the problem of water disaster exploration in a coal mine working face,firstly,the
hydrological and geological conditions in the area are analyzed. Then,according to the basic principle of
transient electromagnetic method,the geophysical prospecting scheme of the working face is formulated,
and the geophysical prospecting results are inverted and analyzed.The analysis results show that the water ac⁃
cumulation area on the upper part of the working face is located in the strike of 400~1 200 m,which is
caused by the characteristics of the goaf of the overlying coal seam,which is low in the east and high in the
west.After drilling,the boundary of the water accumulation area was verified,and the water accumulation
area was determined to be 420~1 200 m along the strike of the working face. According to the analysis of the
water outlet characteristics,the water source was determined to be goaf water.The drilling results are basical⁃
ly consistent with the geophysical results.
  

  1. Datong Co.,Ltd. of Shanxi Coal Transportation and Marketing Group
  • Online:2024-04-15 Published:2024-08-13

摘要:

针对某煤矿工作面水害勘探问题,首先分析了区域内水文和地质情况,再根据瞬变电
磁法基本原理,制定了工作面物探方案,并对物探结果进行反演分析。分析结果表明,工作面上部积
水区位于走向400~1 200 m,是上覆煤层的采空区呈东低西高的特征导致。经过钻探,对积水区边界
进行验证,确定积水区域为工作面走向420~1 200 m,根据出水特征分析,水源确为老空水。钻探结果
和物探结果基本一致。

关键词:

Abstract:

Aiming at the problem of water disaster exploration in a coal mine working face,firstly,the
hydrological and geological conditions in the area are analyzed. Then,according to the basic principle of
transient electromagnetic method,the geophysical prospecting scheme of the working face is formulated,
and the geophysical prospecting results are inverted and analyzed.The analysis results show that the water ac⁃
cumulation area on the upper part of the working face is located in the strike of 400~1 200 m,which is
caused by the characteristics of the goaf of the overlying coal seam,which is low in the east and high in the
west.After drilling,the boundary of the water accumulation area was verified,and the water accumulation
area was determined to be 420~1 200 m along the strike of the working face. According to the analysis of the
water outlet characteristics,the water source was determined to be goaf water.The drilling results are basical⁃
ly consistent with the geophysical results.

Key words: