The Week of October 21, 2019 — Footings For the Galleria? Not so Fast! My Bad!! Make-Ready Phase Comes First.
What I thought was taking place out on the north yard was not for trenching the footings for the galleria and main entrance canopy. I got the cart before the horse. The trenches are for the storm drains and electrical conduits that must be laid deep underground before digging the galleria and main entrance canopy footings. In recent weeks, we have watched as a plethora of activity around the south and west sides of the construction site. Now various types of equipment have moved to the north side of the complex: all for trenching, backfilling and compacting.
North yard make-ready for the Galleria and Main Entrance Canopy.Deep trenches.An intersection of storm drains.Electrical Conduit.Backfilling and compacting.A view of the activity from the Schuman Pavilion pedestrian bridge.
The Moat Covers — Update
Just a few feet from where the excavating going on, four (4) tradesmen were preparing the cap slab on the northeast side to install the moat covers. The following images illustrate some of the steps involved.
The cap slab has been waterproofed and is ready for the “nosey” end strips and the polycarbonate sliders.Two tradesmen on the cap slab are installing what they call a “nosey,” to which the moat cover butts up to when installed. Notice the two men above are clipped to a safety cable as the moat is two-stories deep. At the lower right, two tradesmen are standing on a scaffold (also clipped to a safety cable) working on the moat cover ledge from below.polycarbonate strips are anchored to the cap slab.Up and over, a forklift carefully lifts a cover (aka pan because they are filled with concrete) up and over the safety fence and the installation team places the cover over the moat.Once the moat covers are placed, the team checks them for proper alignment.A good example of how the moat covers butt up to the “nosey” angle strips. These moat covers were installed on the west side of the building.The above is a simple illustration, which demonstrates how the moat covers would respond to a seismic occurrence. In the upper left shaded rectangle, illustrates that the moat cover would lie flat on the cap slab, over the moat, and attach to the lip. If there was seismic activity that would force the building to move left, the moat cover would rise up and slide up on the “nosey.” Conversely, should a seismic event cause the building to move to the right, the moat cover would slide along the polycarbonate strips anchored to the cap slab. Depending on the size and duration of the seismic event, a gap will appear between the moat cover and the “nosey.” Once the seismic event is over the moat cover should slide back into place.A stack of polycarbonate sheets that will be cut into strips for use as sliders on top of which the moat covers (pans) will be installed.
The Emergency Generators at Taylor Street and Taylor Court — Update
Outer forms removed from the electrical vault as viewed from the front (Taylor Street).Outer forms removed from the electrical vault as viewed from the back facing Taylor Street.Just south of the buried diesel tanks a rat slab was poured the width of the site where a deep footing would be poured to support a block wall, which will be the back of the generator building. In this photo, the rat slab is shown with electrical conduit strategically placed.From a slightly different angle, we see a surveyor on his knees (note the depth of the footing trench) doing some calculations. The next day, one half of the foundation had been poured with concrete. More electrical conduits were being positioned before the last pour. On Friday, the last layer of concrete was poured. At the left is the back of the support wall and to the right is the front, which retained the concrete.
After graduate school Dennis accepted a position at Loma Linda University. He worked there for 42 years in the areas of administration and financial management, also teaching accounting and management to dietetic students at the School of Public Health. Through the years Dennis has chronicled the growth of the campus, including the construction of the Drayson Center and the Centennial Complex and the razing of Gentry Gym. He is the author of "The Mound City Chronicles: A Pictorial History of Loma Linda University, A Health Sciences Institution 1905 - 2005." dEp 09.30.2016 🔨
