Prefabricated Urban Underground Utility Tunnels: A Case Study on Mechanical Behaviour with Strain Monitoring and Numerical Simulation

<div>Statistics of monitoring results. (a) Equivalent strain of concrete at the monitoring point of the tunnel’s inner wall. (b) Equivalent strain of concrete at the monitoring point behind the bolt groove. (c) Strain of connecting bolts between tube joints.</div>

Advances in Materials Science and Engineering

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Figure 5

Figure 5: Prefabricated Urban Underground Utility Tunnels: A Case Study on Mechanical Behaviour with Strain Monitoring and Numerical Simulation 