I am following the new Student Affairs Building located on the west side of the ICTAS I building. This $45 million project will be finished in Spring 2012 and include two floors of dining and one floor of classrooms and space for the Services for Students with Disabilities office. The construction began with the excavation of the the South side of the site, after which drilling for caissons started. Caissons holes are being drilled down to the bedrock to support the structural load of the new Academic and Student Affairs Building. These caissons are deep foundation supports that are constructed by placing fresh concrete and reinforcing steel in to a drilled shaft. These piles are cast in holes of pre-determined diameters and depths drilled through soil and rock. Portable drill rigs have been transported to the site. Soil augers, equipped with a cutting edge, cuts into the soil. Steel cases on site are used to support drilled holes when unstable conditions are encountered. Also, after these holes have been drilled, any material, debris, or water has to be cleaned out before the concrete is placed to ensure structural integrity. On a recent site visit, a worker was blowing debris out of the hole with an air hose after mucking out mud and water.
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| Safety cage around hole that has been drilled with an auger. Notice the auger in the lower right hand corner. Also, the prefabricated steel caisson has been placed down in the hole and is ready to be filled with concrete. Another safety concern would be the tips of the rebar sticking out and if someone were to fall in the hole, they would be impaled by the rebar. In order to avoid this from happening, rebar safety caps are placed on top of the rebar. |
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| Pre-fabricated reinforced steel caissons arrive on site and are staged for placement with crane. |
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| Safety cage with caution tape around the drilled caisson hole. There are numerous holes on site and to avoid any accident, especially with all of the activity on site, all holes have been properly designated with safety cages and caution tap. |
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| In-loader and drilling rig (crawler). |
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| Workers preparing the caissons to be hoisted by crane. |
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| Pre-fabricated Caissons. |
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| Site Entrance (north side) |
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