Experimental Study of Blasting-Fume Diffusion and Concentration Prediction in a Blind Tunnel
(1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083; 2 Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083; 3 Guilaizhuang Mining Co. Ltd., Shandong Gold Group Co. Ltd., Linyi 273307)
Abstract：
In underground metal mines, monitoring and predicting the diffusion of toxic gas induced by the drilling and blasting method is essential for ensuring personnel security and improving production efficiency. A test to monitor the variation of blasting-fume concentration in a blind tunnel with forced ventilation was conducted. The data fitting reveals that the blasting-fume concentration decreases with the index e, and there is a clear linear relationship between the maximum concentration at each tunnel section and the theoretical initial concentration at the starting area. This paper is a reference for predicting the time required for reaching a safe CO concentration and choosing sensors for assembling the hardware system.
ZHANG Ge-1,
CAO Yang-2,
JI Hong-Guang-2 etc
.Experimental Study of Blasting-Fume Diffusion and Concentration Prediction in a Blind Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(4): 150-154
2014, Vol. 51 