Field Study on the Law of Surface Subsidence in the High-Intensity Fully Mechanized Caving Mining Working Face with Shallow Thick Bedrock and Thin Epipedon in Hilly Areas

Table 2

Movement angles of observation lines on strike and inclination.

Measuring line	Movement angle on strike δ		Rise movement angle γ		Dip movement angle β
	Measured value	Theoretical value	Measured value	Theoretical value	Measured value	Theoretical value
Observation line A on strike	62°	70°–75°	—	—	—
Observation line B on inclination	—	—	70°	70°–75°	65°	67°–72°
Observation line C on inclination	—	—	65°		56°