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煤层波谱特征与瓦斯含量的试验研究 被引量:5
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作者 赵秋芳 侯懿 刘顺喜 《河南理工大学学报(自然科学版)》 CAS 2008年第6期615-618,共4页
为研究煤层频谱特征与煤层瓦斯地质参数间相关关系,选取几个典型矿区的主采煤层,采用矿井震波探测技术进行原位煤体震波波谱探测实验.试验结果表明,煤体波谱特征反映了煤层本身的物理力学性质,同一结构的煤层在其5倍厚度的距离内煤壁的... 为研究煤层频谱特征与煤层瓦斯地质参数间相关关系,选取几个典型矿区的主采煤层,采用矿井震波探测技术进行原位煤体震波波谱探测实验.试验结果表明,煤体波谱特征反映了煤层本身的物理力学性质,同一结构的煤层在其5倍厚度的距离内煤壁的主频值相对稳定,主频的变化反应了煤体结构的特征,结构破坏主频明显低移;不同的煤层具有不同的主频,突出煤层具有低主频特征.煤层瓦斯含量与煤层固有主频成较好的线性相关,煤层固有主频值越低,相应煤层瓦斯含量越高.研究结果可为煤与瓦斯突出预测提供新的方法. 展开更多
关键词 频谱分析 波谱特征 瓦斯含量 突出煤层
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Comparison between Different Shapes of Structure by Response Spectrum Method of Dynamic Analysis
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作者 Jaya Rajkumar Ramchandani Madhuri Nilesh Mangulkar 《Open Journal of Civil Engineering》 2016年第2期131-138,共8页
Several procedures for non-linear static and dynamic analysis of structures have been developed in recent years. In this paper, the response spectrum analysis is performed on two different shapes i.e. regular and irre... Several procedures for non-linear static and dynamic analysis of structures have been developed in recent years. In this paper, the response spectrum analysis is performed on two different shapes i.e. regular and irregular shape of structure by using STAAD PRO. And the comparison results are studied and compared accounting for the earthquake characteristics and the structure dynamic characteristics. As the results show that the earthquake response peak values and the main response frequencies are very close and comparable. It can be referred to by the engineering applications. 展开更多
关键词 seismic Response spectrum Analysis STAAD PRO Dynamic characteristics Earthquake Response Peak
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