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Maine State Capital Building Renovation
As part of a major renovation to the Maine State Capital Building,
a new basement was called for beneath the west wing of this building.
The building did not originally have a basement, and its foundation was
founded on solid rock just a few feet below grade. The new basement would
attach to the new connector tunnel, linking the Federal and
Capital buildings together.
SEI was asked to design the shoring to hold up the building,
while a 30'x30'x
20' hole was blasted through solid ledge directly below. This is
a 4-story building,
with 30" thick granite walls. The total shored load was a little less
than 1,000,000 pounds (500 tons).  |