![Hitachi Zosen Corporation - SR99 Tunnel Project 10](https://japan-product.com/wp-content/uploads/2014/06/SR99-Tunnel-Project-10-150x113.png)
The World’s Largest EPB Shield Tunneling Machine
Source: Hitachi Zosen Corporation
The Hitachi Zosen Sakai Works has completed work on the world’s largest earth pressure balance (EPB) shield tunneling machine, with a diameter of 17.45 meters.The tunneling machine will be delivered by ship to Seattle in March 2013.
Continue reading »