The first breakthrough of HS2 tunnel project in Britain
发布时间：2021-04-14 点击数：235
On July 22, the tunnel of Warwickshire section of HS2 project in Britain completed a breakthrough. The variable density TBM Dorothy with a diameter of 9.92m was started at the northern entrance of the tunnel in December 2021. After 1.6km of excavation, the breakthrough was completed at the southern platform of the tunnel.
The muck in this tunnel section is transported through a special muck transport pipeline, and no heavy transport truck is used.
HS2 tunnel project is one of the largest tunnel projects in the history of the United Kingdom. A total of 10 large-diameter tunnel boring machines of 9.92m will drive a tunnel system with a total length of 103km.
The muck in this tunnel section is transported through a special muck transport pipeline, and no heavy transport truck is used.
HS2 tunnel project is one of the largest tunnel projects in the history of the United Kingdom. A total of 10 large-diameter tunnel boring machines of 9.92m will drive a tunnel system with a total length of 103km.