Mishra, Rakesh Kumar and Singh, Virendra Kumar and Pandey, J.K. (2018) Detection and delineation of coal mine fire in Jharia coal field, India using geophysical approach: A case study. Journal of Earth System Science, 127 (8). ISSN 0253-4126

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Abstract

Coal mine fire is a serious problem in Jharia coal field, India. The coal mine fire can be detected with different techniques such as borehole temperature measurement, thermo-compositional analysis, remote sensing techniques, thermo-graphic measurement and geophysical methods. In this study, various geophysical methods were used to detect the surface and subsurface coal mine fires. Geophysical techniques used in the present study are apparent resistivity, self-potential (SP), magnetic method and thermography. Geophysical anomalies such as low SP value of −60 mV−60 mV, high negative magnetic response and low apparent resistivity value helped us to detect and delineate the fire and non-fire areas laterally as well as depthwise. Furthermore, the thermography survey was carried out in the coal field using thermal imaging camera in order to substantiate the geophysical methods. This integrated approach was found to be more advantageous for the detection and delineation of surface and subsurface fire with respect to use of any specific techniques. Moreover, the level of threat towards the locality, national railway line was also assessed unambiguously using the above techniques. Hence, proper planning and implementation towards the mitigation of hazard can be achieved on the basis of the reported results.

Item Type:	Article
Uncontrolled Keywords:	Geophysical thermography resistivity meter self-potential (SP) magnetometer thermal imaging camera
Subjects:	Mine Fire
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	20 Nov 2018 10:43
Last Modified:	20 Nov 2018 10:43
URI:	http://cimfr.csircentral.net/id/eprint/1946

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