Fig. 2
From: Study on the phenomenon of the ultra-large drilling cuttings quantity in rockburst coal seam

Measure drilling cuttings of 16#, 17#, 18#, 20# and 21# in the Material Haulageway 7123.
From: Study on the phenomenon of the ultra-large drilling cuttings quantity in rockburst coal seam

Measure drilling cuttings of 16#, 17#, 18#, 20# and 21# in the Material Haulageway 7123.