Quantitative Inversion of Water-Inrush Incidents in Mountain Tunnel beneath a Karst Pit

Table 6

Geometric dimension of karst pit model.

	Main pit
Top radius of cone R (m)	186.0
Top radius of truncated cone R (m)	186.0
Bottom radius of truncated pit r (m)	15.0
Height of pit H (m)	37.0
Cone tan θ	0.20
Truncated cone tan θ	0.21