PROJECT UPDATES :: JUNE 23, 2011
ON MALL B, THE EIGHTH CAISSON WAS POURED EARLIER THIS WEEK, A DEEP FOUNDATION SUPPORT THAT IS CONSTRUCTED BY PLACING FRESH CONCRETE AND REINFORCING STEEL INTO A DRILLED SHAFT. THESE REINFORCED CONCRETE PILES ARE CAST IN HOLES OF PREDETERMINED DIAMETERS AND DEPTHS DRILLED THROUGH SOIL TO REACH BEDROCK.
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| Photo taken April 14, 2011 by flickr user SeattleDog1 |
FOUNDATION WORK ON THE CONCOURSE LEVEL OF THE FUTURE CONVENTION CENTER CONTINUES WITH FORMWORK FOR PILASTERS SCHEDULED TO BEGIN SHORTLY. A PILASTER IS A RECTANGULAR SUPPORT THAT RESEMBLES A FLAT COLUMN.
NEAR ST. CLAIR AVENUE, 120 OF THE 241 MICROPILES HAVE BEEN COMPLETED. DESIGNED TO CARRY COMPRESSIVE LOADS, MICROPILES ARE FOUNDATIONS MADE UP OF HIGH STRENGTH STEEL CASING AND REBAR AND ARE HIGH-PERFORMANCE, HIGH-CAPACITY DRILLED AND GROUTED PILES WITH SMALL DIAMETERS THAT WILL EXTEND APPROXIMATELY 160 FEET INTO BEDROCK. MICROPILE WORK ALSO CONTINUES IN THE BALLROOM AREA NORTH OF LAKESIDE AVENUE.
DEMOLITION IS SUBSTANTIALLY COMPLETE WITH ONLY SMALL AREAS OF SELECTIVE DEMOLITION AND HAUL OUT OF DEBRIS REMAINING. THE TEMPORARY STEEL SUPPORT OF LAKESIDE AVENUE HAS BEEN COMPLETED. STAIR CONSTRUCTION CONTINUES NORTH OF LAKESIDE AVENUE.
ON THE SITE OF THE FUTURE MEDICAL MART, BACKFILLING OF THE AREA IS MORE THAN 90% COMPLETE WITH MASS EXCAVATION WORK PASSING THE 80% COMPLETION MARK. SOLDIER PILE INSTALLATION HAS BEEN COMPLETED
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