Study on Three-Zone in Coalmine Goaf Based on MATLAB
Study on the regulation and distribution of threezone in coalmine goaf is the basis of predicting coal spontaneous combustion. Aiming at the present problem that spontaneous combustion three-zone distribution in coalmine goaf cant be primely observed by twoline layout stationing, the method of whole line layout stationing along the working face was presented for predicting coal spontaneous combustion. Spontaneous combustion three-zone observation trial was selected in a experimental working face. Datum of oxygen, carbon dioxide, methane concentration and temperature were observed. Stereo distribution and contour lines of oxygen, carbon dioxide, methane concentration and temperature were generated by MATLAB. Oxygen concentration is used as the standard of dividing spontaneous combustion three-zone. Spontaneous combustion three-zone distribution in coalmine goaf is obtained by MATLAB by means of analysis of gas composition and each observation point spontaneous combustion three-zone range is obtained from the picture. Finally using the superposition of oxygen, carbon dioxide, methane concentration and temperature, the spontaneous combustion dangerous area range in coalmine goaf is gotten.
coalmine goaf spontaneous combustion three-zone contour lines stereo distribution
JIA Hailin CHANG Xuhua CHU Tingxiang LU Laixiang
School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1422-1426
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）