A small version of each photo is displayed. Click on the 'large image' link below each caption for a 4x version.
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A retaining wall was constructed by first sinking 2' holes down below
the level of the new floor (sub-basement level). These holes were
drilled at 6' intervals around the periphery of the project. The large
2' caissons keep the sides of the hole from collapsing. Once the holes
were drilled, large I beams were cemented into the holes. The caissons
were then removed. This picture is looking west from the vicinity of
the loading dock. large image |
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Excavation begins. The steam tunnel that services the Chemistry
building has been uncovered. The workers are using a concrete saw to
slice the top of the steam tunnel off. You can see the retaining walls
in the background. The I-beams were about 6' apart and the boards were
2" oak planks. large image |
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The top of the steam tunnel has been removed and the sides are to be
removed next. Looking east toward the loading dock. large image |
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Removing the sides. Looking from the loading dock. Worker in the purple
shirt is bending over the steam line. Notice the fiber optic conduit to
the right of that worker. large image |
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The sides of the steam tunnel are being lifted out of the hole.
Looking east toward the loading dock. large image |
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The top and sides of the steam tunnel have been removed. The pipes on
the right of the steam tunnel are the steam line and steam condensate
return. The smaller pipe on the left is a 3" conduit containing the
optical fiber cables providing the data communication links to the
campus backbone. Looking east toward the loading dock. large image |
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Excavation continues. The large excavator is lowering a small excavator
into the hole. Looking west from the loading dock. large image |
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Excavation team work. The small excavator brings soil to the end of the
hole and the large excavator lifts it out. Looking west from the loading
dock. large image |
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View of excavation from within the "hole." The steam lines and the fiber
optic are suspended on the left. The white structure suspended on the
right is the duct bank that brought the power into the building. Looking
west from the Loading Dock end. large image |
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Excavation is complete. Outer wall has been started. Looking East
toward Loading Dock end. large image |
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Penetrating the wall of the building to make opening between the
existing substation and the new section.. Notice the building power
and communication cables that are suspended in air during the
construction. large image |
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Lifting out a section of wall. View is from Loading Dock. large image |
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Lower floor is finished. Looking west from the Loading Dock. large image |
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Pouring the upper floor of the new substation. large image |
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Pouring the roof of the new substation. Looking west from the Loading
Dock. large image |
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Lowering electrical gear into the substation. The air shaft provides
access to both levels. large image |
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Lowering the natural gas fueled emergency generator into the upper
level of the new substation. large image |
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View of the lower level of the new structure. Electrical gear is in
the process of being installed. large image |
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Last Updated: July 28, 2003 - WebMaster URL: http://www.chemistry.msu.edu/History/ SubStation_photos.shtml |4.01|css|508|A|[D] |
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