Support design of roof gateway with slicing method in steep inclined thick seam

Steep inclined thick seam slicing method was applied on the second layer of -10m level Datai mine. With the X-ray diffraction analyses and the SEM microstructure analyses, the characteristic of enclosing rock was known. The best support program, bolt-mesh-anchor combined support, was selected. The practices showed that the rock deformation was effectively controlled. The support system endured the safety production; its support effect was obvious.