Research on Reconstruction Technology of Gas Distribution Field in Mine Stope
The emission and accumulation of the high concentrations methane gas are important reasons of gas explosion accidents in mines. With the measured data of the gas concentration from the safety monitoring system, to research the gas distribution regularity and to reconstruct the gas distribution field are beneficial to prevent the accidents of the gas explosion. Aiming at the issue of the limited data of gas measured in the mine stope, it is researched to reconstruct technology of the gas distribution field based on Kriging interpolation method. Firstly, the gas concentration in a coal mine face is measured based on the element method, and the distribution characters of gas concentration is analyzed within the measurement range. After analyzed and compared the characteristics of the common spatial interpolation methods, the reconstruction method of the gas distribution field based on the Kriging interpolation is determined. Based on the principles of spatial information statistics, the variogram distribution is plotted through the pretreatment of the obtained original data and calculation of experimental variation functions. Finally, the three common model of Kriging interpolation is used to fit the experimental variogram, and the fitting effect of the three models is tested by the cross-examination method. The results showed that the reconstruction method of the gas distribution field based on Kriging interpolation with the sparse data is satisfied.
gas distribution field reconstruction Kriging interpolation mine stope
DONG Hai-bo TONG Min-ming WANG Jing-jing LIANG Liang
Institute of Gas and Safety Monitoring, School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221008, China
国际会议
The 2nd International Conference on Mine Safety and Environment Protection(第二届采矿、安全与环境保护国际会议)
西安
英文
193-198
2011-10-10（万方平台首次上网日期，不代表论文的发表时间）