Application of the Ultimate Hanging Arch Length of the Layered Roof with Anchors and the Gob-Side Entry Retaining

Table 4

Calculation of the values of each parameter of the hanging arch length.

Parameter	(m)	H (m)	(m)	q (KPa)	(KPa)	P (KPa)	Rt (MPa)	n	h
Value	2.98	230	4.2	124.9	100	416.7	2∼2.5	3	1.9