Snow. Jesse Hall. The Quad. Memorial Union. Tiger Plaza.
Miscellaneous

Mizzou Memorial Union Gets Lift from TerraThane Geotechnical Foam

Univ. of Missouri’s Historic Memorial Union, Built to Honor WWI Dead, Gets New Life with TerraThane Geotechnical Foam

Snow. Jesse Hall. The Quad. Memorial Union. Tiger Plaza.MOUNT AIRY, NC—The Univ. of Missouri’s iconic Memorial Union, with its Gothic architecture and central bell tower, was built to commemorate the 117 Mizzou alumni who lost their lives in WWI, and has been under silent attack. Like all buildings built atop the ancient dry riverbeds of the tributary valleys of the Missouri River, the soil beneath is a mixture of sand, clay, and fine rock particles and highly susceptible to erosion from water. So, while hundreds of thousands of students walked the hallways of the building, water escaping steam pipes far beneath caused severe drying of the soil and destabilized it enough so that erosion created voids, or cavities in the soil, some as large as four feet. In turn, this caused the concrete slab floors atop the voids to become uneven, and the eventual danger of even greater problems loomed large.

A team of engineers went after the problem, including MU alums, Matt VanderTuig, P.E., of Bartlett & West, Jefferson City, MO, and Mark Whitehead, P.E. with extensive structural design and environmental engineering management experience. They suggested to Chris Hentges, president of SIRCAL Contracting, Jefferson City, the general contractor in charge of the job, that instead of using the older method of mudjacking, a highly involved and intrusive process of drilling large holes in the slabs—sometimes removing the slabs entirely—and pumping “mud”, ultra-heavy Portland cement-based grout, into the void, then leveling the slabs, that the university might better be served by using the newer polyurethane foam system method called “foamjacking” or “polyjacking.”

[Editor] Be sure to click through for the rest of the interesting project from GeoPrac sponsor NCFI Polyurethanes and TerraThane! [/Editor]

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Solid Foundation for Grain Storage

Solid Foundation for Grain Storage

URETEK ICR was contacted regarding settlement in two identical 1.5 million bushel grain flat storage buildings.   The overall structure dimensions were 600 ft. long by 135 ft. wide with a Quonset style roof . Below the floor of the storage buildings, a tunnel with conveyance system and a series of aeration tunnels were installed to facilitate moisture control and grain transport. 

[Editor] Check out the rest of this contributed Article from Ty Taylor of URETEK ICR, a GeoPrac.net sponsor. Ty describes how the foundations were lifted and stabilized using the URETEK Method®  [/Editor]

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Seattle tunnel will go under 158 buildings

The tunnel replacing the Alaskan Way Viaduct (SR-99) will pass beneath 158 existing structures requiring an extensive program of vibration and settlement monitoring as well as some remediation. Of the 158 buildings, WSDOT identified 20 […]