某井田15煤层三采区构造定量化分析

Structure Quantitative Analysis of A Field 15 Coal Seam Three Area of Mining

由某井田三采上山区15#煤层地质资料可知该采区以断裂构造为主,通过断层影响因子和断层分形2种方法对三采区构造进行定量化分析,并对采区进行构造分区。利用断层影响因子将采区分为安全区域、有可能突水区域、突水较大性区域;利用断层分形将采区分为构造简单区域、中等复杂区域、复杂区域。通过2种方法的对比可知,断层影响因子分区较细,但与断层分布有一定的出入;断层分维定量评价与断层实际展布一致,符合度高,因此选定断层分维作为底板突水的构造复杂性定量评价。

By the geological data of the three 15 coal seam mining about a field,known in the mining area is given priority to with fracture structure, the structure quantitative analysis about three mining area through the fault factors and fault fractal, and the mining area are tectonic division. The mining area can be divided into the area of security, possible, largely by the method of the fault impact factor.The mining area can be divided into the area of simple, moderately complex, complex. Through the comparison of the two methods, fault impact factor partition is fine, but with the fault distribution has certain discrepancy. Fault fractal dimension is consistent with the actual fault distribution and quantitative evaluation of conformity degree is high, so the method of fault fractal dimension is selected as inrush structure complexity quantitative evaluation.