唐山矿西南区构造复杂程度的熵函数评价

唐山矿隶属于开平煤田,位于开平向斜的北西翼,构造极为复杂。本文应用熵函数定量的对唐山矿西南区9号煤层的构造复杂程度进行了评价,所得的熵值越大,构造越简单;熵值越小,构造越复杂。评价结果与分形分维对比表明:由于对不同类型的断层分别统计和计算,以及添加了褶曲这一重要构造类型,熵函数评价结果更加科学,即西南区9号煤层的西部、北部和东部边界为构造复杂区,而在岭子背斜两侧构造则比较简单。 

Entropy function evaluation of geological structure complexity of southwest section in Tangshan mine

Tangshan mine, belonging to Kaiping coalfield, is located in the northwest wing of Kaiping syncline, and its structure is very complex. In this paper, the entropy function is used to evaluate the structure complexity of the ninth coal seam in southwest section of Tangshan mine. The bigger the entropy value is, the simpler the structure, vice versa. Compared with fractal and fractal dimension, the result shows that areas with complex structure are mainly located in the west, north and east boundaries of the ninth seam, and the structure is relatively simple in both sides of the Lingzi anticline. It is concluded that the results of entropy are more reasonable because statistics and calculation are conducted separately for different faults and the important structure(folds).