Study on multi-source monitoring and temperature evolution zoning characteristics of small coal kiln fire area
HUO Hongliang
JING Zehao
Abstract：To address the frequent occurrence of spontaneous combustion fires,which seriously threaten the safety of mining areas and the ecological environment,this article takes the residual goaf fire hazards in the small coal mine of Gongwusu Coal Mine as the research background,uses unmanned aerial vehicle infrared thermal imaging and radon measurement method to preliminarily delineate the distribution range of the fire zone,through drilling to deploy K-type thermocouple array to carry out underground in-situ temperature monitoring.The results indicate that the temperature distribution in the fire zone exhibits significant spatial variation:Zone C is the high-temperature core area(>1 000 ℃),Zone B is a secondary heat-invasion area affected by thermal radiation from Zone C,Zone A has potential risk for fire spread,and Zone D is a stable,safe zone.The effectiveness of the temperature-gas collaborative monitoring technology is verified by integrating the gas analysis data from the gas sampling tubes,which provides technical reference for precise fire zone identification,zonal treatment,and disaster prevention.
Keywords：open-pit coal minesmall coal kiln goafthermocouple temperature measurementtemperature distributionfire zone treatment
Publication Date：2026-02-28
Online Publishing Date：2026-03-19(First online date of this platform, not the publication date of the document)
Pages：6( 88-93 )