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- W3128403749 abstract "Abstract Spontaneous combustion of coal seams in goaf seriously threatens the development of the coal mining industry. The prediction of goaf temperature is of great significance for mine disaster prevention. Based on the energy conservation equation of floating coal in goaf, the analytical solution of the steady-state temperature field in goaf is derived in this paper, and the temperature of goaf can be calculated simply through a series of physical and chemical parameters. This method is applied to Kaida Coal Mine to calculate the temperature of goaf at the return air side of 46205 working face. The results show that although there is some error between the calculated value and the measured value of the temperature in goaf, the predicted results can reflect the change rule of the temperature in goaf, and provide some guidance for the prevention and control of coal spontaneous combustion in goaf. With the increase of buried depth, the floating coal temperature rises first and then decreases. It is estimated that the maximum temperature of goaf is 27.11 °C, which is located 25m deep in goaf." @default.
- W3128403749 created "2021-02-15" @default.
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- W3128403749 date "2021-01-01" @default.
- W3128403749 modified "2023-09-25" @default.
- W3128403749 title "Prediction method of coal mine goaf temperature and its practical application" @default.
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- W3128403749 doi "https://doi.org/10.1088/1755-1315/647/1/012008" @default.
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