This project consisted of a 21' wide tunnel that would ultimately house a 2,000' long pipe only 6' in diameter. This pipe would later act as a gun barrel shooting Neutrino's (sub-atomic particles) through the Earths crust to be caught and studied at a laboratory 200' below ground in Minnesota . This gun barrel needed to be encased to protect against corrosion and movement.
As you see in this picture, we used our volumetric dry mix equipment with an electric pump rated at 120 cubic yards per hour to place the material around the pipe. 4” slickline was used to pump the material up to 2,000' from the staging areas. One staging area was located adjacent to a stream in an environmentally sensitive wetland. Sophisticated dust collection, containment systems, and clean up procedures were required.
The project schedule required that we work two shifts. Our daily production averaged 900 cubic yards. This allowed the project to move ahead on schedule and meet the demands of the owner.
MixOnSite has performed this scope of work successfully nationwide on many similar projects.
Lurie Medical Center Chicago, IL
Load Reducing Backfill
This project required backfilling narrow areas up to 45’ deep between the new foundation and the sheet piles. Granular backfill would have required compaction which was logistically impossible, while flowable fill or CDF would exert too much load on the foundation wall.
Geofill Hybrid (70 PCF) reduced the lateral load against the foundation and eliminated hydrostatic pressure by being impermeable. The flowability of the material resulted in minimal disruption to the site.
