C-304 Compostela Tunnel

Project Information: Excavation and support of 234 m of bored tunnel. Waterproofing, reinforcement and coating with a formwork carriage in 234 m of bored tunnel and 10 m of cut and cover tunnel (5 m at either entrance).

Country: México

Province: State of Nayarit

Place: Compostela

Geometry:

  • Cross section: 130 m2
  • Length: 244 m; 234 m of bored tunnel and 10 m of cut and cover tunnel (5 m at either entrance)

Overburden: Maximum 75 m

Method of Tunneling:

  • NATM (pre-tunnelling and excavation phases)
  • Drilling and blasting and mechanical means

Geology and Geotechnical Data: Gray and greenish andesite, volcano-sedimentary sequence

Tunnel Equipment:

  • Model XL3C 3 boom jumbo
  • Model L2C 2 boom jumbo
  • Model PM-500 shotcrete robot