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为了研究构造煤孔渗变化特性,利用平顶山矿区原生结构煤和构造煤,进行了不同围压、温度、湿度和煤体结构类型等条件下孔隙度及渗透率的实验测定,对煤层孔渗特性在不同条件下的变化趋势进行了分析.结果表明:围压、温度、湿度和煤体结构类型4种因素对煤的孔隙度和渗透率均有较大影响,当温度和围压同时作用时,围压的作用效果大于温度的作用效果.并用Origin软件对部分实验数据进行了数据拟合,得出原生结构煤和构造煤的渗透率-孔隙度函数关系.
In order to study the characteristics of permeability and permeability of tectonic coal, experimental measurements of porosity and permeability under different confining pressure, temperature, humidity and type of coal body structure were conducted by using the primary structure coal and tectonic coal in Pingdingshan Mining Area. The results show that the four factors of confining pressure, temperature, humidity and type of coal body structure have a great influence on the porosity and permeability of coal. When the temperature and confining pressure are simultaneously acting , And the effect of confining pressure is greater than the effect of temperature.The data of some experimental data are fitted by Origin software and the relationship between permeability and porosity of primary structure coal and tectonic coal is obtained.