The roof separation was investigated in a coal mine as part of the site characterization of roof strata deterioration in a Iongwall roadway. The separation of l
By combining the practices of deep mine mining in Changguang Mine field and using the Universal Distinct Element Code 3.0 (UDEC3.0) numerical computing method,
A new multifunctional testing device for rock fragmentation was introduced,which can conduct many experiments such as single cutting under static load, crushing