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摘要: 针对直接连接断层控制点所得断煤交线的主观性与不准确性，根据"V"字形法则原理，提出了采用断层面与煤层趋势延伸面布尔求交获取断煤交线的方法。以断层控制点及断层轨迹线数据为基础，构建了断层面模型；以二次多项式模型、指数模型、Gompertz模型为基础，将剖面煤层曲线在断层处趋势延伸，构建了煤层趋势延伸面模型。通过断层面模型与煤层趋势延伸面模型布尔运算求交，得到由断层面与煤层面共同约束的断煤交线，并与直接连接断层控制点所得断煤交线进行比较。结果表明：由断层面与煤层面共同约束的断煤交线，充分顾及到煤层在断层处的趋势，更真实地反应断煤交线的空间形态，对建立煤层实体模型和指导实际生产具有重要理论与实际意义。Abstract: In allusion to subjectivity and inaccuracy of intersection line of faulted coal seam by connecting the fault control points directly, according to the V-like rule, a method of Boolean intersection operation on fault surface and the trend of coal seam was put forward to get the intersection line of faulted coal seam. On the basis of the fault control points and fault lines data, the fault surface model was built. On the basis of quadratic polynomial model, index model, the Gompertz model, coal seam section curve on the edge of the faults was extended in terms of trend of coal seam, coal seam trend surface model was built. Through Boolean intersection operation on fault surface model and coal seam trend surface model, the intersection line of fault coal seam by the constraint fault surface together with coal seam trend surface was got. Compared with the intersection line of faulted coal seam by connecting the fault control points directly, the results showed that the intersection line of faulted coal seam by the constraint fault surface together with coal seam trend surface fully considers the trend of coal seam on faults, more veritable responses space form of intersection line of faulted coal seam, it has important theoretical and practical significance in the aspects of establishing solid models of coal seam and guiding the actual production.
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