Deflection Mechanism and Safety Analysis of Coal Mine Shaft in Deep Soil Strata

Table 2

Some soil movement angles in China.

Mine name	Coal thickness (m)	Mining depth (m)	Angles (°)
Jiaohe	1.0∼1.7	35∼110	45
Xuzhou	0.5∼5.59	90∼140	36∼45
Shuangyashan	0.8∼2.1	30∼220	45
Pingyuan	1.15∼3.54	100∼330	55
Huainan	1.8∼4.2	<180	40∼45
Weizhou	1.8∼3.5	<310	45∼55
Fuxin	1.5∼2.4	<400	40∼50
Fushun	20∼50	<540	45
Kailuan	0.9∼3.4	<600	35∼45
Zaozhuang	1.0∼1.7	<600	45
Jining	1.9∼4.3	>600	40∼45
Juye	0.9∼7.9	>600	40∼45