| In the study of existing coal seam gas pressure in the distribution, there are twoaspects can not be ignored, namely: Determination of seam gas pressure and gaspressure distribution analysis. The rapid and accurate Determination of gas pressureDetermination points is the key to the study. Only accurate pressure data in order tocarry out a scientific theory. However, underground coal mine complex conditions,such as rock voids, aquifers and coal seams themselves are interested in the accuratedetermination of the geological conditions of coal seam pressure impact. Also, choosea reasonable and scientific Determination points, fast and effective method ofmanometry manometry is also an important part of improving the accuracy. By thescientific, reasonable and effective pressure Determination on known data processingand analysis is particularly important. Research conducted effective distribution ofcoal seam gas pressure, the data graphically to show up, depending on the choicereasonable data software for data processing, which includes how to choose thesoftware and map out the contours of coal seam gas pressure Figure.In the actual study on the distribution of coal seam gas pressure, first, the limit tothe pressure was measured according to the accuracy of the relevant factors and give atheoretical analysis of how to choose the right graphics software and interpolationmethod; Secondly, according to the theory manometry difficulty of analysis todetermine the design high pressure grouting long as the main upward angle boreholemanometry big new technology, and on-site practice. Then, using cross-validationmethod, the results of on-site data verification, to determine the optimal kriginginterpolation method, and using software combines AutoCad to draw the gas pressurecontour; Finally, by the analysis of gas pressure contour,get the gas pressuredistribution of Kaiyuan mine3#coal seam. This is a better guidance of mining andother safety work in mine for the future. |
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