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

Table 3

Test parameters.

Test number	Density of surrounding rock; g/cm^3	Explosive quantity; g	Cover thickness; cm	Explosive density; g/cm^3	Detonation velocity of black powder; m/s	Shear wave velocity of rock; m/s	Diameter of explosive column; mm
3	1.613	2.5	3	1.63	500	154.8	11