多煤层区小断层发育特征及成因分析

Analysis of Causes of Formation and Development Characteristics of Small Faults in Various Coal-beds

以多煤层区采掘资料为依据，通过对不同煤层间小断层特征的比较研究，论证了煤岩层岩性、厚度及组合、煤层间距等因素在煤层小断层发育中的作用，提出了利用脆塑比的研究方法，丰富了对多煤层小构造研究的思路，对多煤层开采矿井小断层的研究和预测有一定的指导意义。

According to the data from the mining in multiseam districts and the studies on the comparision between the characteristics of the small faults and the various coal beds, the effect of lithological characteristics, thiknesses and coal sets on the development of small faults in coal seam have been analysed. A method of research by using ratios of brittleness and plasticity have been proposed.