On May 16, 2024, on the Ningbo and Zhoushan
sides of the newly built Ningbo Zhoushan Railway (Yongzhou Railway) Jintang
Submarine Tunnel, two ultra large diameter tunnel boring machines facing
each other across the sea simultaneously rotated their cutterheads, officially
embarking on a journey across the sea, marking the official entry of the
world's longest underwater high-speed railway tunnel-the Yongzhou Railway
Jintang Submarine Tunnel-into the shield tunneling stage.

Tolian
designed and manufactured two sets of MSV70 for this project and this batch of special
transporters will serve as the main equipment for supporting ultra large
diameter tunnel boring machines.
MSV70 will undertake
the responsibility of transporting the box culverts from the ground storage site to the internal crane of the tunnel boring machine
through the inclined shaft of the tunnel.

