Jiaxing Urban Expressway Crossing Nanhu Avenue in Zhejiang Province. Nanhu, the world's largest rectangular TBM, broke through the ground

CREG rectangular TBM Nanhu extra large cross-section rectangular TBM, with a section width of 14.8m and a height of 9.426m. 

First application of rectangular TBM in 3-lane tunnel construction.

http://en.crectbm.com/detail/8620.html