Experimental study of mechanism of non-Darcy flow in broken rocks
This paper used MTS815.02 Electro-Hydraulic Servocontrolled Rock Mechanics Testing System to conduct seepage experiments in broken sandstones which had different porosity and different particle sizes. It studied the effect of porosity and particle size of broken sandstones on non-Darcy flow in broken sandstones. Experimental results showed that the broken sandstones with smaller porosity had more obvious non-Darcy property than the broken sandstones with the same particle size. Based on the experimental data obtained, this paper got the relationships that how permeability K and non-Darcy flow factor β varied with porosity and particle size and the equations that porosity and particle size had a combination effect on permeability K and non-Darcy flow factor β by using 1stOpt software. Finally, through the analysis of experimental results, the cause of non-Darcy flow in broken rocks was discussed.
broken rock non-Darcy flow Permeability
QIN Yue-ping LUO Wei YANG Xiao-bing HU Jun-fen
State key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing 100083,China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
141-147
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）