Peoples Daily inform  Shanghai Rail Transit Chongming Line 108, undertaken by Shanghai Tunnel Engineering Co., Ltd.

Chongming Line will pass  Yangtze River two times in underground for first time.  Also large-diameter slurry-water balance shield method tunnel with the longest one-time excavation distance for domestic rail transit.

http://sh.people.com.cn/BIG5/n2/2022/0622/c134768-40006419.html