| Hotel Avia, Long Beach, California
Hotel Avia is located in Long Beach about 2 blocks
from the water. The soil is sandy, becoming very dense
about 40 feet below existing grade. The original design
was for 24 inch CIDH Piles 60 ft deep. We offered a
value engineering design using displacement piles that
saved about $1.5 million on the foundation system.
The piles required design loads of 210 KIPS in Tension
and Compression, 30 KIPS Lateral, with testing to 2.5
times design load.. We submitted a design using a 45
ft long, 16 inch displacement pile with a #20 Grade
75 KSI steel bar full length and a 15 ft long cage utilizing
4 #6 vertical bars.
We installed the piles using a BG28 drill rig equipped
with a computer that monitors torque, crowd, concrete
pressure, time, depth, and penetration resistance. All
217 piles were installed with very few problems.
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