Chengdu Metro, Line 2 Extension

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Location

Chengdu, China

Scope of Supply

2 x 6.3 m (20.7 ft) EPB TBM

Tunnel Length

2 x 3.2 km (2.0 mi)

Ground Condition

Mixed Ground, Sand, Pebbles, and Boulders

 

Metro Machines Make Short Work of Mixed Ground

  • Geology is the most challenging section of the project, with abrasive sand and boulders up to 200 MPa (29,000 psi) UCS
  • The extension of Chengdu’s Line 2 will add 8.7 km (5.4 mi) to western areas of the city, where commuter rail was previously not accessible