Study on the Fracture Behavior of Cracks Emanating from Tunnel Spandrel under Blasting Loads by Using TMCSC Specimens

Table 4

Crack propagation length (L).

Crack inclination angle (°)		−75	−60	−45	−30	−15	0	15	30	45	60	75	—
L (mm)	Simulation value	43.54	52.63	63.75	77.35	86.78	92.69	100.77	111.56	136.44	108.2	96.82	—
	Experimental value	43.15	52.26	62.46	75.89	84.46	90.83	98.68	109.32	134.85	106.88	94.24	—