云南省圭山煤矿瓦斯灾害的地质影响因素分析

AN ANALYSIS OF GEOLOGICAL FACTORS INFLUENCING GAS DISASTER OF GUISHAN COAL DEPOSIT IN YUNNAN

云南省圭山煤矿矿区地质条件复杂,矿区地质条件直接影响和控制着井下瓦斯含量、瓦斯百分比浓度、瓦斯的不均匀性分布,极容易诱发瓦斯灾害的发生。这些地质影响因素包括煤层的结构、煤层的地质构造、煤矿的变质程度、矿井煤层的产状等,其中矿区断裂构造是主要的影响因素。针对矿井中瓦斯在不同地段分布上的差异,划分出低瓦斯分布区和高瓦斯分布区域,建议采用微生物降解技术和上山浸水技术降解瓦斯,构建瓦斯灾害综合防治体系。

The geological conditions of Guishan coal orefield in Yunnan are Complicated,which directly influence and control the gas content underground shaft,gas concentration percent and the uneven distribution of gas,which will very easily induce the gas disaster.The geological influence factors are the texture of coal bed,geological structure of coal bed,metamorphic degree of coal deposit,occurrence of coal bed in shaft,etc.The main influence factor is the fault in the orefield.According to the distribution difference of gas in different area of shaft,the high and low gas distribution division,we suggest to set up the comprehensive prevention system of gas disaster with the microbiological degradation and water immersion technology in order to degrade the gas.