The principle and method of applying quantification theory Ⅲ to estublish the hazard evaluation coal and gas outburst were studied.Based on the theory of Gas-geology a danger evaluation index system of coal and gas outburst was established,including eleven geological factors,such as the coal seam gas content,gas pressure of coal seam and coal seam bifurcation or merger phenomenon,the complexity of geological structure,the coal damage type,etc.Taking the quantification theory Ⅲ as tool,the sensitive geological factors and axis-F1 for the danger of coal and gas outburst for 3 coal seam in Mayixi NO.1 were obtained by practical example analysis.The one with score more than 0.1 was the sensitive geological factor for strong outstanding,and the one with score less than -0.1 was the sensitive geological factor for weak outstanding.Besides,the factor with score between-0.1 and 0.1 was for medium outstanding area.Moreover,the mining area was divided into three regions,including strong outstanding,medium outstanding and weak outstanding area.The method realizes the quantitative analysis of coal and gas outburst in geological exploration stage.furthermove,and the regional division of the coal and gas outburst would be refined.%研究了数量化理论Ⅲ建立煤与瓦斯突出危险性的原理和方法,以瓦斯地质学理论为基础,建立了包括煤层瓦斯含量、煤层瓦斯压力、煤层分岔合并现象、地质构造复杂程度、煤的破坏类型等11个地质因素的煤层突出危险性评估指标体系.以数量化理论Ⅲ为工具,实例分析得出马依西一井3煤层突出危险性的敏感地质因素及因素轴F1,以该轴上得分大干0.1的地质因素作为强突出的敏感地质因素；得分小于-0.1的地质因素作为弱突出的敏感地质因素,得分在0.1--0.1之间的地质因素作为中等突出的敏感地质因素,将矿井划分为强突出、中等突出和弱突出三个区域.该方法实现了地勘阶段煤与瓦斯突出的定量分析,进一步细化了突出区域的划分.
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