Experimental Study Of Fluid Seepage In Fractured Coal Under Simulated Deep Coal Mining

In this thesis, the deep fractured coal was used to core coal samples. CT scanningsystem was applied to study the characteristics of the coal samples. In order to studythe seepage property under the deep coal seam condition, high ground stress, highpore pressure and high geothermal features, the laboratory triaxial high-pressurepermeation device was used to simulate deep coal seam conditions. Then, based onthe theory of fluid mechanics, experimental mechanics, coal permeability test wascarried out considering confining pressure, pore pressure, rupture, temperature andother factors. The effects of pore pressure, confining pressure, fractured structure, andthe temperature on the permeability were investigated.