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为了准确、快速地得出不同巷道与煤层位置关系下立井揭煤抽排瓦斯钻孔参数,绘制其可视化图形以直观地指导煤矿立井揭煤抽排钻孔的施工,采用解析几何的方法建立立井揭煤抽排瓦斯钻孔参数计算模型,并用AutoCAD中的可视化方法建立三维巷道、钻孔及煤层的可视化模型,然后用VBA编程,设计出便于输入不同条件的用户窗体,通过运行程序求得钻孔布置参数,绘制可视化图形。结果表明,得出的图形及设计参数与实际较为接近。
In order to accurately and quickly obtain gas drilling parameters of gas drainage and gas drainage in vertical shaft under the relationship of roadway and coal seam location and draw the visual graphics to visually guide the construction of coal mine drainage pumping boreholes in coal mine shaft and to establish the shaft by analytic geometry Uncovering coal gas drainage parameters calculation model, and visualization using AutoCAD in the establishment of three-dimensional roadway, borehole and coal seam visualization model, and then use VBA programming, designed to facilitate the input of different conditions of the user form, obtained by running the program Borehole layout parameters, draw visualization. The results show that the obtained figures and design parameters are close to the actual ones.