Impact Pseudostatic Load Equivalent Model and the Maximum Internal Force Solution for Underground Structure of Tunnel Lining

Table 10

Comparison of the bending moment for the pneumatic impact loading on structure.

Measuring point	Air pressure releasing		Air pressure applying
	Test value	Calculated value	Test value	Calculated value
X6	−0.86	−0.84	−1.1	−0.63
X7	1.68	1.63	1.3	1.22
X8	1.83	−8.68	0.76	−6.51
X9	−2.26	7.08	−0.52	5.31
X10	−1.17	1.99	−0.43	1.49