An Improved Form of 2D SPH Method for Modeling the Excavation Damage of Tunnels Containing Random Fissures

Table 2

Calculation conditions.

Schematic diagram	Conditions	Details	Schematic diagram	Conditions	Details
	A1	Circular		B1
	A2	“U” shaped		B2
	A3	Horseshoe shaped		B3
				B4
	C1			D1
	C2			D2
	C3			D3
	C4			D4