煤孔隙分形特征及其随温度的变化规律  

Features of fissure sharp in coal borehole and variation law with temperature

作　　者：张玉涛[1] 王德明[1] 仲晓星[1] 

机构地区：[1]中国矿业大学能源与安全工程学院

出　　处：《煤炭科学技术》2007年第11期73-76,共4页Coal Science and Technology

摘　　要：利用分形几何学理论对煤孔隙结构进行了定量的描述和研究,推导了煤孔隙分形维数的表达式;利用压汞法测量了煤样在不同温度下的孔隙分布,从试验方面验证了煤孔隙所具有的分形特征,并利用这些试验数据求得了煤样孔隙体积的分形维数,得出了温度越高,煤孔隙分形维数越明显,并且呈线性增大的结论。The paper quantitatively stated and researched the coal borehole fissure structure with the sharp geometry theory. The paper derived the expression of the coal borehole fissure sharp dimension. The fissure distribution under the different temperatures was measured with pressurized mercury method for the coal sample. The sharp features of the coal borehole fissure have been confirmed by the tests. Then the test data can calculate the sharp dimension data of the borehole fissure volume for the coal sample. The high temperature data have, the obvious sharp dimension data of the coal borehole fissures will have and will be a conclusion with a increased linear line.

关 键 词：孔隙结构 压汞法 分形维数 煤 

分 类 号：TD75[矿业工程—矿井通风与安全]