Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel

<div>The air demands of the BSC tunnel using the Chinese method and PIARC values. (a) Calculation results of Q<sub>iv</sub>. (b) Calculation results of Q<sub>co</sub>.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel 