Peoples daily inform important progress in China tunnel construction work.

- China Railway 16th Bureau Group inclined shaft of Hou'an Tunnel of the Liaoning Section of Shenbai High-speed Railway (430 km) enter main tunnel 30 days ahead schedule.

Hou'an Tunnel one-hole double-track tunnel 9,125 meters. For construction speed contractor make a auxiliary inclined shaft 880 meters and slope 10%. Inclined shaft later for emergency shelter and rescue.

http://finance.people.com.cn/BIG5/n1/2022/0519/c1004-32425595.html