Read more about our recent projects, our attendances at conferences and events or the latest developments at GZ.
GZ is excited to announce that we’ve moved our office location in London, U.K. We are now located in the…
Read MoreTunnel Excavation Completed! On September 21, 2012 – almost exactly two years from the start of tunneling – all excavation…
Read MoreAs of last week, the excavation of the new forth bore at the Caldecott Tunnel in Oalkand, California was completed. …
Read MoreSeptember 21, 2012, Dr. Vojtech Gall presented “Case History: Tysons Corner Station and Tunnels”, at Breakthroughs in Tunneling 2012, on…
Read MoreAugust 3, 2012 – The dig to begin the Caldecott Tunnel’s fourth bore will soon be complete outlining the giant…
Read MoreVojtech Gall, Ph.D., P.E., presented at the 2012 North American Tunneling Conference on “Real-Time Monitoring for Very Shallow Tunneling in…
Read MoreGZ Principal Kurt Zeidler, PhD, CEng gave a presentation at the World Tunnel Congress May 18-23, 2012 in Bangkok, Thailand. A…
Read MoreDr. Gall presented “The Latest Strategy of Dry Tunnel Development” at AquaStop 2012. The international conference was held May 29-30,…
Read More