Sustainability in tunneling is more than just a hot topic: current and future tunnel projects can and should seek ways to reduce environmental impacts. One of the simplest ways to reduce impacts and carbon footprint is with a renewable resource: a tunnel boring machine. TBMs have been proven to last for decades, and can be rebuilt cost effectively project after project with proper maintenance. In fact, several known, active TBMs are still boring tunnels after more than five decades of use and 50 km of total tunneling.
Just how successful can rebuilt TBMs be? We’ll explore this question through the lens of the DigIndy Project in Indianapolis, Indiana, USA, where contractor J.F. Shea is using a rebuilt TBM to great effect. The 6.2 m diameter Main Beam TBM on that project, originally built in 1980, is currently boring the last of more than 40 km of tunnels below the city. During the course of boring, the machine set three world records in its size class of 6 to 7 m, including a best month of 1,754 m.
In this complimentary, 60-minute webinar we’ll discuss rebuilt TBMs as a key to sustainable tunneling with Doug Harding, Robbins Vice President, and Christian Heinz, Project Manager for J.F. Shea. Listen in on our conversation with Julian Champkin of Tunnels & Tunnelling International as we discuss recommendations for rebuilt machine use, and case studies from around the world. Join us for a live Q&A session at the end to get a thorough answer from our expert speakers. Register for the event on November 3 at 2 PM London/10 AM New York.
Key Learning Objectives
- Learn about how rebuilt TBMs can offer a sustainable tunnelling solution
- Find out the behind-the-scenes info on the DigIndy project, where a rebuilt TBM has achieved world records while boring 40 km of tunnels below Indianapolis
- Ask your question during a live Q&A and have it answered by our expert speakers