Mechanism of Fire Prevention with Liquid Carbon Dioxide and Application of Long-Distance Pressure-Holding Transportation Technology Based on Shallow Buried and Near-Horizontal Goaf Geological Conditions

Table 3

Basic model parameters.

	Model parameters	Parameter values
1	Working face	Length 306 m × width 5 m × height 5.6 m
2	Intake airway	Length 20 m × width 5.5 m × height 4 m
3	Return airway	Length 20 m × width 5 m × height 4 m
4	Goaf	Length 300 m × width 306 m × height 15 m
5	Mean inclination	1–3°
6	Pipe diameter	60 cm
7	Depth of buried pipes	80 m, 100 m, and 120 m