Context 74 - May 2002

# / . 4 % 8 4 - ! 9 LOCATED CLOSE TO WHERE THE ORIGINAL BRICKS WERE PRODUCED ) HAD TURNED MY ATTENTION TO DESIGNING THE FOUNDATION SLAB AT THE RECEPTION SITE WHICH WOULD SPAN BETWEEN THE TWO MASSIVE BRICK VIADUCT WALLS ADJACENT TO THE CANAL BASIN 4HE DESIGN PRINCIPLE IS THAT THE LOAD IS TRANSFERRED FROM THE SLAB DOWN THROUGH THE WALLS TO 3TUART !RMITAGE IS AN ENGINEER WITH THE -ORTON 0ARTNERSHIP 4HE LOWER LEVEL CAST IN PLACE HEAVILY REINFORCED CONCRETE LIFTING BEAM ,EFT THE STEEL LIFTING FRAME BEING MANOEUVRED FOR THE UPPER SECTION LIFT AT THE ORIGINAL SITE 2IGHT TOP THE UPPER SECTION LIFT AT THE RECEPTION SITE VIEWED FROM 3T 0ANCRAS #ANAL "ASIN RIGHT BOTTOM THE UPPER SECTION LIFT AT THE RECEPTION SITE 4HE LOWER SECTION ON THE TRANSPORT TRAILER FOUNDATION LEVEL #ALCULATIONS FOR FOUNDATION LOADING HAD TO BE AGREED WITH 2,% AS THE NEW LOCATION OF THE 7ATERPOINT IS DIRECTLY ABOVE THE CROWN OF THE PROPOSED 4HAMESLINK TUNNEL "EARING CAPACITY CALCULATIONS WERE CARRIED OUT FOR THE VIADUCT WALLS 4HE ALIGNMENT OF THE NEW 4HAMESLINK TUNNEL ALSO MEANT THAT THE LOCATION OF THE PILES TO SUPPORT THE CRANE AT THE RECEPTION SITE HAD TO BE CAREFULLY CONSIDERED 3IMILARLY AT THE ORIGINAL SITE THE PILES HAD TO BE LOCATED SO AS NOT TO INTERFERE WITH THE NEW FOUNDATIONS FOR THE STATION DECK FOR THE #42, WHICH WILL BE CONSTRUCTED DIRECTLY OVER THE ORIGINAL SITE OF THE 7ATERPOINT /NCE THE HEAVILY REINFORCED FOUNDATION SLAB WAS COMPLETED THE BRICK PLINTH WAS CONSTRUCTED 4O ENSURE PERFECT ALIGNMENT OF THE PLINTH IT WAS DECIDED TO CONSTRUCT IT AS TWO SKINS OF BRICKWORK ! CORE WAS BUILT PRIOR TO THE MOVE TO RECEIVE THE MIDDLE AND UPPER SECTIONS AND AFTER THE MOVE FACE WORK WAS CONSTRUCTED FLUSH TO THE FACE OF THE IMPORTED BRICKWORK ABOVE 4HE LIFTING AND TRANSPORTATION OPERATION WAS COMPLETED OVER A PERIOD OF THREE DAYS IN .OVEMBER 7ORKS TO COMPLETE THE PLINTH AND REPAIR AND REFURBISH THE7ATERPOINT WILL START SOON )T IS PROPOSED THAT THE FINISHED BUILDING WILL SERVE PRIMARILY AS A VIEWING TOWER WITH A NEW INTERNAL STAIRCASE GIVING ACCESS TO THE TANK WHERE A TIMBER DECK WILL BE CONSTRUCTED 4HE NEW SITE OF THE 7ATERPOINT ON THE VIADUCT WILL PROVIDE VIEWS OF THE #42, TERMINUS +ING S #ROSS AND 3T 0ANCRAS 3TATIONS AND #AMLEY 3TREET .ATURAL 0ARK TO THE SOUTH AND OVER THE CANAL BASIN TO THE NORTH 4HE BUILDING WILL ALSO PROVIDE FOR DISPLAYS AND MANY OTHER EDUCATIONAL OR RECREATIONAL USES )T WILL CONTINUE TO PROVIDE AN IMPORTANT FEATURE ON THE #AMDEN SKYLINE

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