【摘要】 通过大煤样的瓦斯排放试验研究,揭示了顺序加载与逆序加载下的煤体变形与瓦斯排放量以及排放时间的相关性。试验结果表明:无论何种加载方式,煤体变形与瓦斯排放量服从抛物线方程;与排放时间呈唯一对应的非线性关系。这些结论对于检测煤层瓦斯抽放率以及合理确定煤巷的维护周期具有重要的参考价值。更多还原

【Abstract】 Through the testing research about gas drainage on outsize coal sample, the relativity of coal mass deformation and drainage quantity & time is opened out. This research shows that whatever mode loading, the relation of coal deformation and drainage is parabolic equation. Coal mass deformation is nonlinear function about drainage time. These conclusions aid to measure drainage rate of gas and fixing on maintenance period of coal laneway.更多还原