Location of Floor Slab Voids -
Confidential Client - Ann Arbor, Michigan
A large warehouse in Ann
Arbor had suffered extensive settlement and cracking of the floor
slab, with no accompanying movement of the foundation piles.
Investigation of design drawings showed that the floor had been laid
as a slab on grade, with no tie into the foundations or the
structure. Using the Transient Dynamic Response Test, with a small
number of core and drill holes for confirmation, STS was able to map
out the void areas and support conditions beneath the floor slabs,
and plan an appropriate program of injection grouting to restore the
less damaged portions to correct level, resulting in substantial
savings to the owner.
|
Room & Board Warehouse - Minneapolis,
MN
STS's soil exploration
determined that construction of Room & Board's 65,000 square foot
warehouse would entail full-time, special inspection of the
extensive earthwork preparation of the building pad. Using a variety
of soil testing equipment, STS field personnel documented the
strength of the natural soils and compaction of the fill soils. To
reduce earthwork costs, STS assisted the excavator in developing a
"blend" of imported sand and native soils that provided a suitable
structural fill, but minimized the quantity of soil requiring
disposal. STS also provided special inspection services for
concrete; reinforcing and structural steel; and masonry.
|
Commercial Properties - Principal
Financial Group - Chicago, Illinois
STS evaluated eight
separate properties developed for warehousing, office park and light
industrial manufacturing use. This included transportation and
warehouse facilities used for shipping and storing hazardous
materials. Facilities occupied with permitted hazardous waste
generators and underground storage tanks were encountered.
|
Warehouse Facility - Super Valu
Stores, Inc. - Kenosha, Wisconsin
STS completed geotechnical
evaluation, foundation recommendations, a groundwater condition
survey and construction monitoring for a 500,000 square foot grocery
warehouse facility. |
Abbott Laboratories - Abbott Park,
Illinois
Abbott's AP 32 office and
warehouse was designed with a 20' basement supported on footing
foundations. The four-story structural steel building was designed
with "Super-Flat" slabs to facilitate sensitive stacking machinery
and storage of products. STS provided technicians both at the
project site and at the concrete batching plant to monitor the
mixture and ensure that it was delivered as designed. With radio
contact between the technicians, adjustments of the mix were made
throughout placement and the concrete was placed and finished to
provide the flatness desired.
|
Ross Laboratories - Sturgis, Michigan
STS was retained by Ross
Laboratories to provide geotechnical engineering services for a
construction project at the Sturgis facility. The project consisted
of constructing two warehouse additions and an office building
addition on the site. STS performed twenty-one soil borings from
depths of six to twenty feet. In the three proposed building
addition areas, STS encountered uncontrolled fill, topsoil and
buried topsoil layers in all three areas. STS presented both
excavation/backfill and deep foundation/structural slab alternatives
for a sound foundation design. In addition, STS performed an asphalt
mix design and materials testing services prior to and during
construction. These testing services included soils, concrete and
asphalt. |