Test of Fume Temperature at Roadway in the Section Polluted by Fire Fume

The fume temperature distribution below the fire area in the section of the roadway, and the changes of the fume temperature in each sectiom are studied.The achievements show that fume temperature distribution is not even in section,it is higher near the roof of drift, and is lower at the foot and the side walls;as the distance to the fire area increases, the difference of fume temperatures of various measuring points in the section increases, when the average or the highest temperature is the same.