Research Article

Study on Antiseismic Effect of Different Thicknesses of Shock Absorption Layer on Urban Shallow Buried Double Arch Rectangular Tunnel

Table 6

Minimum safety factor and antiseismic effect.

Section numberCondition 1Condition 2Condition 3Condition 4
Safety factorSafety factorAntiseismic effect (%)Safety factorAntiseismic effect (%)Safety factorAntiseismic effect (%)

S13.023.7724.83%(↑)4.2741.39%(↑)4.3142.72%(↑)
S22.813.4623.13%(↑)4.3454.45%(↑)4.2149.82%(↑)
S32.743.4525.91%(↑)4.1250.36%(↑)4.1952.92%(↑)
S42.773.6632.13%(↑)4.1850.90%(↑)4.2453.07%(↑)
S52.953.5921.69%(↑)4.3346.78%(↑)4.2243.05%(↑)