Dynamic Changes in Surface Damage Induced by High-Intensity Mining of Shallow, Thick Coal Seams in Gully Areas

Table 2

Dimension parameters of the working face in the calculation model.

Working face number	Actual mining range of the working face				Mining area in the calculation model
	Face length (m)	Mining length (m)	Mining height (m)	Mining speed (m·d^−1)	X (m)	Y (m)	Z (m)
6206	150	385	12.8	2.1	60–210	300–680	14–22
6205	160	420	12.8	1.4	230–390	300–720	14–22
6204	160	390	12.8	1.4	410–570	300–690	14–22
6203	150	460	12.8	2.1	590–740	300–760	14–22
6202	180	480	12.8	1.2	760–940	300–780	14–22
6201	170	470	12.8	1.4	960–1130	300–770	14–22