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 of the tunnel would have a severe impact on the roadway above as well as adjacent buildings. Expanded Polystyrene manufacturer and fabricator Versa-Tech was awarded the contract for providing the Geotechnical Fill in the form of EPS Geofoam Blocks that will be used to fill the void. Some 3,300 blocks totaling over 675,000 cubic ft will be utilized for the first phase. The blocks have a unit weight between 1 and 2 pcf and unlike conventional backfill, should reduce the lateral pressures on the inside of the tunnel to prevent the walls from failing outwards and adversely affecting buildings and other infrastructure. [Source: Versa-Tech. Image: Versa-Tech]
Related Articles
Ground Freezing and Tunneling for New York MTA’s Second Ave Subway
February 21, 2011
rockman
Project Related
Comments Off on Ground Freezing and Tunneling for New York MTA’s Second Ave Subway
Geotechnical Work Begins on Coffs Harbour Bypass Mega Project
October 31, 2022
rockman
Project Related
Comments Off on Geotechnical Work Begins on Coffs Harbour Bypass Mega Project
Bertha Tunneling to Resume 1 Month Later Than Planned
November 13, 2015
rockman
Project Related
Comments Off on Bertha Tunneling to Resume 1 Month Later Than Planned