Related Articles

Project Related

Plan for Bertha Repair Submitted, Archaeological Surveys Underway

March 20, 2014 rockman Project Related Comments Off on Plan for Bertha Repair Submitted, Archaeological Surveys Underway

Seattle Tunnel Partners and WSDOT are moving forward with the plans to excavate a 120 foot deep shaft to repair the Bertha Tunnel Boring Machine. Unfortunately, there are archaeological issues since the project team did […]

Subway penetration by drill rig in Istanbul, Turkey
Failures

Foundation Rig Drills Into Subway Line in Turkey

January 21, 2024 rockman Failures Comments Off on Foundation Rig Drills Into Subway Line in Turkey

The video below from X user @githii shows a startling sight: what appears to be a foundation drill rig punched right through the crown of a subway tunnel in Istanbul, Turkey several days ago. Reportedly […]

Geofoam EPS blocks at the campus of Versa-Tech for the Tucker Tunnel project in St. Louis
Project Related

Backfilling the 1931 Tucker Tunnel in St. Louis with Geotechnical Fill, Geofoam Blocks

October 28, 2010 rockman Project Related Comments Off on Backfilling the 1931 Tucker Tunnel in St. Louis with Geotechnical Fill, Geofoam Blocks

Constructed in 1931 by the Illinois Terminal Railroad, the Tucker Tunnel is located underneath Terminal Boulevard in downtown St. Louis. Over the years, the tunnel condition has deteriorated and the concern is that the failure […]