中文摘要：

煤矿井下存在着瓦斯爆炸3类危险源。在对原有3类危险源划分进行修正的基础上,基于解释结构模型方法对瓦斯爆炸3类危险源结构进行系统分析。通过建立系统要素关系表,进而建立邻接矩阵和可达矩阵;通过分解可达矩阵,得到煤矿瓦斯爆炸危险源系统要素解释结构模型的层次结构及其解释。这种方法直观清楚地反映了该系统元素之间的结构关系,验证了3类危险源理论的正确性,对于实践中的瓦斯危险源辨识和控制具有指导意义。

英文摘要：

There are three-type of hazard in coalmines.The essential factors in gas explosion hazard system interact with each other while its function appears to be complex and fuzzy.So the structure of gas explosion hazard system should be analyzed.The paper revised former three-type-hazard theory division and expounded contents of gas explosion hazard system.Then it analyzed the system structure based on Interpretative Structural Modeling（ISM）Method,which concluded 9 elements in gas explosion hazard system by setting up relation chart of system elements.Next,it set up adjacency matrix and reachable matrix.It showed the level structure and explanation of gas explosion hazard system elements Interpretative Structural Modeling.In this way the direct effect factors of gas explosion system can be analyzed.The ISM method can directly illustrate relation of those system elements,which inspects and verifies the validity of three-type-hazard theory and shows it is of a great significance in supervision practice to identify and control all kinds of gas hazards.