Application research on identification of rich water space in abandoned coal mine based on semi-airborne transient electromagnetic method

被引：0

作者：

Fan Y. ^{[1
]}

Pan S. ^{[2
]}

Du S. ^{[1
]}

Li M. ^{[3
]}

Zhao Y. ^{[1
]}

Zhang Y. ^{[1
]}

Ding Y. ^{[1
]}

Song S. ^{[1
]}

Che Q. ^{[1
]}

Wang F. ^{[2
]}

机构：

[1] General Prospecting Institute of China National Administration of Coal Geology, Beijing

[2] China National Administration of Coal Geology, Beijing

[3] Center of Aerial Geophysical Exploration and Remote Sensing, China Geological Survey, Beijing

来源：

Meitan Kexue Jishu/Coal Science and Technology (Peking) | 2023年 / 51卷 / 12期

基金：

国家重点研发计划;

关键词：

abandoned coal mine; acid mine drainage; mining area with complex terrain; Semi-airborne transient electromagnetic; water content identification; water inrush source identification;

D O I：

10.12438/cst.2023-0775

中图分类号：

学科分类号：

摘要：

Acid mine drainage gushing from unknown source after coal mine closure is the key problem that puzzles the ecological restoration of mining areas. Due to the southern coal mining areas in China generally exist “complex terrain conditions, large mining base, multiple points and wide areas” and other problems, it is difficult to identify large-scale underground pollution sources. In order to investigate and study the water-rich space of coal mines in areas with complex terrain and trace the source of acid mine drainage gushing on the surface, the historical abandoned mine in Yanshi Town, Longyan City, Fujian Province, which is located in the depression zone of southwest Fujian Province was taken as an example. Use the semi-airborne transient electromagnetic method with Unmanned Aerial Vehicle, the low resistivity characteristics surrounded by high resistivity for detecting target and according to the resistivity difference between water-rich area and surrounding rock to detect the abnormal water content area within 300 m below the surface with multi-source data, analyze the water content of the abnormal area, and define the geographical location of the water-rich space, provide a scientific basis for the treatment of acid mine drainage in abandoned coal mines. The results show that: ① The semi-airborne transient electromagnetic detection technology has a high sensitivity to the detection of underground water-rich space, and the low-resistivity anomaly area covered by high resistance can effectively reflect the water content of underground space; ② Historical gob areas are widely distributed in the study area, but not all the historical gob areas are water-rich. Using semi-airborne transient electromagnetic detection technology and geological profiles, a total of 8 water-rich areas, a large number of nearly circular water-rich channels and 3 water-rich areas in fault zones are identified; ③ The historical goaf in the study area is not the main underground water-rich space. Compared with the water content of the goaf, the water content of the near-circular tunnel and the waterlogging zone of the fracture zone is also particularly important for the treatment of water gusher in the surface acidic mine. © 2023 China Coal Society. All rights reserved.

引用

页码：79 / 89

页数：10

共 23 条

[1] CHEN Hongping, HAN Zhantao, SHEN Renfang, Et al., Generation processes and ecological restoration techniques of acid mine drainage from abandoned mines[J], Environmental Protection Science, 47, 6, pp. 73-80, (2021)
[2] GU Dazhao, LI Ting, LI Jingfeng, Et al., Current status and prospects of coal mine water treatment technology in China[J], Coal Science and Technology, 49, 1, pp. 11-18, (2021)
[3] BIGHAM J M, SCHWERTMANN U, TRAINA S J, Et al., Schwertmannite and the chemical modeling of iron in acid sulfate waters[J], Geochimica et Cosmochimica Acta, 60, 12, pp. 2111-2121, (1996)
[4] Guangrong GE, WU Yiping, ZHANG Quan, Research on technology and process for moderate desalination of high-salinity mine water by nanofiltration[J], Coal Science and Technology, 49, 3, pp. 208-214, (2021)
[5] ZHAO Fenghua, SUN Hongfu, LI Wensheng, Migration of hazardous elements in acid coal mine drainage[J], Journal of Coal Science, 3, pp. 261-266, (2007)
[6] WANG Meng, ZHAO Zhiying, XING Yong, Application of transient electromagnetic method in detecting water accumulation in goaf of coal mines[J], China Energy and Environmental Protection, 45, 3, pp. 45-49, (2023)
[7] XUE Guoqiang, PAN Dongming, YU Jingcun, Review the applications of geophysical methods for mapping coal-mine voids[J], Progress in Geophysics, 37, 3, pp. 1197-1206, (2022)
[8] LIU Shunbin, LI Wenxiang, RAN Junlin, Et al., Application of S-ATEM for the survey of hidden disaster factors in coal mine [J], Xinjiang Geology, 41, 1, pp. 113-117, (2023)
[9] LIANG Shuai, ZENG Xinfu, Application of transient electromagnetic method in detection of goaf and water-rich in coal mine[J], South China Journal of Seismology, 41, 4, pp. 102-106, (2021)
[10] LI Xiongwei, GAO Xiaowei, JIANG Tao, Et al., Application of semi-airborne TEM on coalmine gob area detection[J], Coal Geology of China, 33, 9, pp. 78-81, (2021)

← 1 2 3 →