伊人五月丁香综合AⅤ,丰满人妻一区二区三区免费视频,人人妻人人澡人人爽精品视频 ,一级毛卡片免费精品视频在线,在线观看国产亚洲精品

NHI Headlines

NHI "Cooperation 2" Tunnel Boring Machine Starts Tunneling

Published:2016-07-06

On April8th morning, along with a "rumble" roar, NHI "Cooperation2" Tunnel Boring Machine (TBM for short) started tunneling at the 17m underground construction site ofCulture West Road Station of metro line 10. Compared with other TBM, this TBMmade by NHI is more humane with reasonable spatial distribution and its cutter parametersare more suitable for Shenyangsoil. "Cooperation 2" TBM complete the installation of 20 ringsegments within 24 hours. It is equivalent of tunneling 24 meters, by an averageof tunneling one meter per hour.