煤层断层形成的岩体综合强度分析

主要讨论在构造应力场相似条件下，煤层项底板岩体力学性质与煤层断层之间的关系。文中利用了岩体综合强度表示方法，提出了煤层断层的形成受构造应力场和煤层顶底板岩体力学性质两个因素的控制，在岩体综合强度为某一区间时有利于煤层断层的发育，该方法可用于分析多媒层开采矿井或区域构造比较简单的矿井中煤层断层的形成。

Analysis of coal bed fault formation by comprehensive strength index method

Relations between coal bed faults and the mechanic features of roof and floor layers under similar conditions of structural stress fields are mainly discussd.It is put forward that comprehensive strength index of rock mass methods mave employed to describe rock mass, and that the coal bed fault formation involves the structural stress field and the mechanic characteristics of strata layers above and below coal beds. Our study shows that coal bed faults most likely develop in areas that lie in an appropriate range of the comprehensive strength index. This straight index may be applied to multi-seam mining area and mining area with simple geological structures.