Several blasting patterns were tried based on local experience and reference to the Soviet literature. As shown in Figure 11.12, a modified V-cut in which a short center hole fired first was the preferred pattern because it required less drilling. The biggest problems in drilling and blasting were dead pressing of ANFO slurries. Fragmentation was always good, and there was no time lost in excessive floor cleanup. and haulage were done with a ST-2D LHD fitted with a 1.5 for(2 yd3) bucket. The LHD delivered ore to an outside stockpile processing during the summer