Numerical Analyses on Deformation and Failure Characteristics of Surrounding Rock of Gob-Side Entry Retention by Roof Cutting

Table 5

Maximum support force in each group of tests.

Support number	Group of tests
	(a) (kN)	(b) (kN)	(c) (kN)	(d) (kN)
I	1666	1653.5	1641	1616
J	0	12.5	25	50
K	250	250	250	250