Page 7 - Demo

AL SERVICES
Blasting Analysis, Design and Vibration Monitoring Dam Engineering
Slope Stability Evaluation and Stabilization Design Seismic Engineering
SAB MUNICIPAL AIRFIELD, ME
The existing runway was inadequate for LifeFlight of Maine to safely and reliably provide life-saving services. The renovation of the airport included a 1,100-foot runway extension, providing the adequate runway length for emergency aircraft operations and improving accessibility to this region.
Geotechnical Solutions Unearthed:
Performed subsurface explorations and laboratory testing to evaluate the suitability of town-owned property as a source of fill material and to determine the suitability of existing runway material for reuse and reclamation.
Evaluated the adjacent town-owned borrow source, and recommended switching the original Reinforced Soil Slope design to a more cost-effective embankment design with a common fill core and an outer shell of rockfill.
Designed two embankments to support the runway extensions including a 75-foot high, 1.5H:1V slope embankment at the Runway 14 end to limit encroachment upon surrounding wetlands. At the Runway 32 end, a similarly steep slope was utilized for the 40-foot high embankment to limit encroachment upon private property while allowing room for the relocation of a town road around the end of the embankment.
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Pavement and Roadway Evaluation and Design Ground Improvement
Tunneling and Pipe Jacking Geotechnical Peer Review
LA MAMA THEATRE, NY
Q BRIDGE REPLACEMENT, CT
Located in the East Village, this 4-story building was constructed in 1873, and was purchased in 1967 by African-American director and producer Ellen Stewart, who established the theatre as a haven for underrepresented artists to experiment with new work. Designated as a NYC landmark in 2009, the theatre required extensive and complicated renovations and restoration.
Geotechnical Solutions Unearthed:
Performed test borings and test pits inside the existing building.
Provided spread footing recommendations to support the new building loads and eliminated the need for soil tiedown anchors.
The contractor’s engineer designed an SOE system that included extensive underpinning of large columns supporting the building façade and the installation of many dowels connecting the existing stone masonry walls and a new mat foundation. Working with the project team to refine the foundation design and eliminate the dowels and underpinning, we significantly reduced the risk of damage to the landmarked façade and lowered the project cost.
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The new Pearl Harbor Memorial Bridge, an extradosed bridge, this nearly one mile long span of I-95 over the Quinnipiac River is the first of its kind to open in the U.S.
Geotechncial Solutions Unearthed:
Provided preliminary and final geotechnical reports including recommendations for foundation design, construction, and minimization of excavation for the foundations to avoid environmental contingencies. In addition to the main span, the project included roadways, retaining walls, temporary and permanent embankments, and temporary bridges.
Eight-foot shaft diameter steel cased shafts to rock with rock sockets were drilled to
depths over 200 feet.
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