摘要
介绍通风方式与瓦斯抽取排放方式的基础上,结合回采工作面的瓦斯产生机理,给出了基于多元化指标判定与BP网络识别的瓦斯安全状态定义,同时对相邻煤层瓦斯、煤壁瓦斯以及落煤三者产生的涌出现象进行分析。引入MATLAB仿真软件进行验证,结果表明:在建立BP辨识模型的基础上,多元化指标只能较为准确的反映回采面瓦斯量的动态变化趋势。
Based on introduction of ventilation and gas extraction emission combining with gas generation mechanism of stope face, gas safety status was defined on the basis of diversification index and BP network. At the same time, Gas emission from three adjacent seams, coal wall gas and coal falling were analyzed. MATLAB simulation software was used to make verification. The results showed that diversification index could only reflect the dynamic trend of gas quantity in mining face more accurately through establishing BP identification model.
出处
《煤炭与化工》
CAS
2017年第5期6-8,13,共4页
Coal and Chemical Industry
关键词
回采工作面
瓦斯安全状态
动态辨识
评价多元化
stope face
gas safety status
dynamic identification
evaluation pluralism
