龙山矿突出区域预测的瓦斯含量临界值  

Limit value of gas content for prediction of area prone to outburst in Longshan mine

作　　者：孙丽娟[1] 郝富昌[1,2] 温英明 王凯[2] 

机构地区：[1]中国矿业大学资源与安全工程学院,北京100083 [2]河南理工大学安全科学与工程学院,河南焦作454003 [3]安阳鑫龙煤业集团,河南安阳455000

出　　处：《煤田地质与勘探》2012年第3期23-25,28,共4页Coal Geology & Exploration

基　　金：国家自然科学基金项目(50904024);国家重点基础研究发展计划(973计划)项目(2005CB221501)

摘　　要：准确确定瓦斯突出区域预测的瓦斯含量临界值,对提高防突措施的针对性和降低防突成本均具有重要的指导作用。以河南安鹤煤田龙山矿二1煤层为例,在大量测试瓦斯基础参数的基础上,分析了该矿的瓦斯突出特征,研究了二1煤层的吸附特征,对该矿瓦斯含量和工作面预测指标进行了跟踪测试,并研究了其相互关系。结果表明,龙山矿二1煤层变质程度高,在同等瓦斯压力条件下,具有较强的吸附能力,最终确定二1煤层的突出区域预测瓦斯含量临界值为10.0 m3/t。Accurately determining the limit value of gas content for prediction of area prone to gas outburst has the instructive function to improve targeted outburst prevention and reduce cost. The paper, taking seam II1 of Long- shan mine as an example, on the basis of measuring lots of gas parameters, analyzed the outburst characteristics in Longshan mine and studied adsorption characteristic of seamⅡ1. A lot of gas content and prediction indexes were measured and their relation was studied. The results show that the metamorphism degree of seam Ⅱ1 is high with strong adsorption ability, and it can adsorb more methane under the same gas pressure, eventually it was determined that the limit value of gas content is 10.0 m3/t.

关 键 词：煤与瓦斯突出 瓦斯含量 临界值 吸附常数 吸附特征 

分 类 号：TD712.5[矿业工程—矿井通风与安全]