Experimental Investigation of the Influence for Stoping Sequence and Granular Grading on Lateral Pressure during the Nonpillar Sublevel Caving Mining

Table 5

Summary of granular grading.

Granular grading	Group 1			Group 2			Group 3
The mass percent (%)	24.6	38.6	36.8	24.6	38.6	36.8	24.6	38.6	36.8
The granular size (mm)	<2	2∼4	4∼6	<3	3∼6	6∼9	<4	4∼8	8∼12