Fast Fisher Discrimination of Water-Rich Burnt Rock Based on DC Electrical Sounding Data

Direct current (DC) electrical sounding was performed to quickly identify the location of potentially dangerous water hidden in burnt rock (formed by spontaneous combustion of the coal). The Fisher discriminant method was used to generate the functional relationship between borehole water inflow and...

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Bibliographic Details
Published in:Mine water and the environment 2021-06, Vol.40 (2), p.539-546
Main Authors: Xie, Haijun, Li, Jin, Dong, Yi, Li, Gongyu, Han, Zihao
Format: Article
Language:English
Subjects:
Accuracy
Boreholes
Coal mining
Direct current
Earth and Environmental Science
Earth Sciences
Ecotoxicology
Geology
Hydrogeology
Industrial Pollution Prevention
Inflow
Mineral Resources
Rock
Rocks
Sounding
Spontaneous combustion
Technical Article
Water
Water Quality/Water Pollution
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Summary:Direct current (DC) electrical sounding was performed to quickly identify the location of potentially dangerous water hidden in burnt rock (formed by spontaneous combustion of the coal). The Fisher discriminant method was used to generate the functional relationship between borehole water inflow and DC electrical sounding data, and a model was established to identify the water-enriched burnt rock areas. Based on a reevaluation of the training samples, the accuracy of the water-rich discrimination model was found to be 89.1%. Finally, the water enrichment in the burnt area was predicted based on DC sounding data from 576 survey points in five exploration lines, and the predictions were compared with the subsequent water inflow data from boreholes. We found that the predicted results were highly consistent with the water inflow data in the boreholes. Thus, the feasibility of using this approach was verified.
ISSN:1025-9112
1616-1068
DOI:10.1007/s10230-020-00747-x