Numerical Study on the Disturbance Effect of Short-Distance Parallel Shield Tunnelling Undercrossing Existing Tunnels

<div>Simulation results of lining stress of line 1 (unit: Pa). (a) Line 5 tunnel not constructed. (b) After the construction of right-line tunnel of line 5. (c) After the construction of double-line tunnel of line 5.</div>

Advances in Civil Engineering

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Figure 9

Figure 9: Numerical Study on the Disturbance Effect of Short-Distance Parallel Shield Tunnelling Undercrossing Existing Tunnels 