Project Summary

• Tunnel Configuration: The T316 project involves 2 tunnels:

  • Section 1: 1.7 km

  • Section 2: 0.3 km

• Total Tunnel Length: The total length of the tunnels is 2 km.

Construction Challenges

• Buried Depth: The tunnel axis is buried between 22 to 28 meters deep.

• Geological Layers: During excavation, the shield machine will pass through:

  • Old sedimentary layers

  • Soft marine clay layers

• Critical Obstacles:

  • E5 and E20 oil pipelines, which are key oil transport pipelines buried deep in quicksand layers.

  • Underneath Singapore's Airport Runway 2 and the aircraft taxiway.

• High Precision Requirements: The presence of deep-buried pipelines and soft soil requires extremely precise control of the shield machine's advancement parameters.