Study on large deformation mechanism and concrete-filled steel tubular support technology for ventilation shaft roadway

The large deformation of deep soft rock roadways and the corresponding support technology are important to the coal mining industry. This study investigated the large deformation mechanism and the concrete-filled steel tubular support technology of a ventilation shaft roadway (VSR) on the basis of a well-documented engineering case. The mechanical parameters of the rock surrounding the VSR were evaluated in accordance with the geological...