|Table of Contents|

Application of Ground-airborne Time Domain Electromagnetic System in Goaf Exploration of Coal Mine in Shenmu Area of Shaanxi, China(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2020年第06期
Page:
776-783
Research Field:
电磁法勘探专辑
Publishing date:

Info

Title:
Application of Ground-airborne Time Domain Electromagnetic System in Goaf Exploration of Coal Mine in Shenmu Area of Shaanxi, China
Author(s):
WANG Zhen-rong1;  CHENG Jiu-long2*;  SONG Li-bing1;  TENG Fei3;  LI Guo1;  YANG Mao-lin1;  CHEN Yong-liang1
1. Shendong Coal Group Co. LTD., CHN Energy, Shenmu 719315, Shaanxi, China; 2. School of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China; 3. College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, Jilin, China
Keywords:
ground-airborne time domain electromagnetic system;  small coal mine;  goaf;  exploration;  precise positioning;  data processing;  high-resolution;  Shaanxi
PACS:
P319.3+2
DOI:
10.19814/j.jese.2020.06040
Abstract:
In order to realize the precise positioning of goaf in Halagou coal mine of Shenmu area, Shaanxi, the ground-airborne time domain electromagnetic system was used to carry out the geophysical exploration in the original small coal mine near Sanpan district of Halagou coal mine. The high-power ground transmitting system integrated with the power vehicle and the single-component ground-airborne electromagnetic signal receiving system based on rotary-wing unmanned aerial vehicle were used to collect the electromagnetic data of 23 lines. Through data processing, high-resolution imaging profile of underground apparent resistivity and depth in the exploration area was obtained. Combining the imaging results with the analysis of the previously known geological borehole data, it is speculated that the low-resistance zone in the exploration area near the underground coal seam is caused by water-goaf of coal seam. Eight suspected underground water-goafs are delineated, five of them are relatively low-resistance abnormal and distribute in the south-central, central and northeastern of the exploration area. The results of the detection verify the effectiveness of ground-airborne time domain electromagnetic system in the application of goaf exploration, and provide scientific and effective information for geological analysis, groundwater tracking and coal mine exploration engineering.

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Last Update: 2020-12-20