马家沟矿煤与瓦斯动力现象机理研究  

Study on the Mechanism of Coal and Gas Dynamic Phenomenon in Majiagou Mine

作　　者：齐黎明[1] 林柏泉[2] 支晓伟[3] 

机构地区：[1]华北科技学院安全工程学院,北京101601 [2]中国矿业大学能源与安全工程学院 [3]天津理工大学环境与安全工程学院,天津300191

出　　处：《中国安全科学学报》2006年第12期30-34,共5页China Safety Science Journal

基　　金：国家自然科学基金资助(50134040);江苏省自然科学基金重点项目资助(BK200315);教育部科学技术研究重点项目资助(重点01027)。

摘　　要：马家沟矿煤与瓦斯动力现象严重威胁着该矿的安全生产,掌握其机理意义重大。笔者在统计并分析该矿煤与瓦斯动力现象的基础上,以上山掘进和石门揭煤为例,根据煤与瓦斯动力现象发生后遗留的典型孔洞形状,采用RFPA-Flow对其进行数值模拟。通过数值模拟反演出了该矿动力现象发生的地质条件及过程,得出了马家沟矿煤与瓦斯动力现象机理,并通过数据处理,得出了在动力现象前后掘进头前方煤体内地应力、瓦斯压力分布状况及卸压区宽度变化规律。To understand the mechanism of coal and gas dynamic phenomenon that seriously threatens the work safety in Majiagou Mine. This paper, taking raise tunnel and uncovering coal in crosscut as examples, made a numerical simulation of typical cavities＇ figure that had been left behind the coal and gas dynamic phenomenon by the method of RFPA - Flow based on the statistics and analysis of coal and gas dynamic phenomenon in this mine. The result of this simulation revealed the geological condition and process of dynamic phenomenon occurring and the mechanism of coal and gas dynamic phenomenon in this mine; the distributing status of geo - stress, gas pressure and the changing rule of distressed zone＇s width in the coal before and after the dynamic phenomenon were obtained according to the result of data processing.

关 键 词：煤与瓦斯动力现象 数值模拟 上山掘进 石门揭煤 卸压区 

分 类 号：X936[环境科学与工程—安全科学]