摘要
分析研究了淮南矿区煤层频谱特征、波速特征及衰减特征,结果表明,煤层中瓦斯含量和震波动力学参数具有较好的相关性,其中煤层瓦斯含量与震波波速具有线性相关关系,随着煤层瓦斯含量的增加,煤层波速逐渐减小;瓦斯含量与煤层固有主频值呈较好的线性相关;瓦斯含量与煤层衰减系数呈对数相关,与品质因子呈线性相关。
The paper analyzed the seam spectrum features, wave velocity and attenuation features in Mine of Huainan Mining Area. The test results showed that there was good relativity between the seam gas content and the dynamic parameters of the vibration wave in the seam of the mine. There was a linear related relationship between the seam gas content and the vibration wave velocity. With the seam gas content increased, the wave velocity in the seam would be steadily reduced. There was a good linear relativity between the seam gas content and the seam existed main frequency value. The seam gas content was logarithmic related to the seam vibration wave attenuation parameter. The gas content was linearly related to the quality divisor.
出处
《煤炭科学技术》
CAS
北大核心
2005年第11期33-36,共4页
Coal Science and Technology
基金
安徽省自然科学基金资助项目(03044403)
关键词
震波参数
瓦斯含量
频谱分析
衰减系数
品质因子
vibration wave parameter
gas content
spectrum analysis
attenuation coefficient
quality divisor
