Reconstruction of three-dimensional gas pressure field of mining coal seam based on Matlab and measured data
MA Haifeng1，2，3
(1. Key Laboratory of Safety and High-efficiency Coal Mining，Ministry of Education，Anhui University of Science and Technology，Huainan，Anhui 232001，China；2. The Provincial Key Laboratory of Mining Effects and Disasters Preventing Under Deep Mining，Anhui University of Science and Technology，Huainan，Anhui 232001，China；3. Faculty of Energy and Safety Engineering，Anhui University of Science and Technology，Huainan，Anhui 232001，China)
Abstract：In order to master the three-dimensional distribution of gas pressure of coal seam and the location of gas pressure concentrated area，the paper studied the distribution of gas pressure and the variation disturbed under mining by using the method of field test and theoretical analysis. The results show there is a single hump-shaped peak zone of gas pressure along strike，however，no peak zone along the tendency. The greater the mining disturbance，the greater the gas pressure peak，and the peak position closer to the working face. And the paper reconstructed static gas pressure field of far-field seam and dynamic gas pressure field of near-field seam by using three interpolation methods of linear interpolation，spline interpolation and cubic interpolation based on Matlab programming. It can be obtained through comparison of interpolation results that the proposed interpolation method based on least squares fitting cubic polynomial reflects the three-dimensional distribution of gas pressure better，the smoothness and continuity is better than that of linear interpolation and spline interpolation，and there is no unreasonable mutation，the interpolation method reconstructs the three-dimensional gas pressure field more authentically. It provides a basis for the prediction of the gas pressure concentrated zone.
马海峰1，2，3. 基于Matlab与实测数据重构采动煤层三维瓦斯压力场[J]. 岩石力学与工程学报, 2016, 35(S1): 3036-3041.
MA Haifeng1，2，3. Reconstruction of three-dimensional gas pressure field of mining coal seam based on Matlab and measured data. , 2016, 35(S1): 3036-3041.
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2016, Vol. 35 
