By employing numerical.modeling, similar material simulation and comprehensive field observation, investigations were made and patterns were obtained governing
<正> Jurassic weak & non-stick coal in Hengshan of North Shaanxi Province was pretreated by the nitric acid.Then,it was biodegraded by Phanerochaete chrysospori
<正> For the study on the relationship between the dynamic phenomena in the min- ing such as mine earthquakes,outburst and faults slide,firstly,double shear fri
From the viewpoint of interaction mechanics for solid and gas, a coupled mathematical model was presented for solid coal/rock deformation and gas leak flow in p
Pointed out some technical difficulties of gob-side entry retaining with roadside packing in Iongwall top-coal caving technology (LTCT), and analyzed the functi