Boskalis Nordic Today No. 01/2019

12 EXCEPTIONALLY MASSIVE QUAY ELEMENTS PORT OF HAMINAKOTKA | MUSSALO HARBOUR, EXPANSION OF D TERMINAL

WWW.HAMINAKOTKA.COM

VIEW OF THE QUAY ELEMENTS IN 2018

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T erramare Site Manager Matti Jus- lenius is supervising the installation of quay elements at the Mussalo Harbour D terminal worksite. A 220-metre retaining quay wall is under construction. Calm spring weather favours the precise measurement work on the massive ele- ments and their installation on the levelled

quay foundation. “For Terramare, this is typical retaining quay wall work, but what makes this ex- ceptional is the larger than usual size of the quay elements,” explains Juslenius. “The slipform cast 300-tonne K elements of the future quay are 18.8 metres high, as are the 140-tonne intermediate S ele-

ments. These elements, of which there are 53 in total, are equivalent in height to a five-storey apartment block. The dimen- sions set their own challenges. We must be even more attentive to measurement and installation when such huge elements are involved. The minimum depth in front of the quay, −17.5 metres, also presents

TEXT & PHOTOS: MARKKU SALONEN

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TERRAMARE SITE MANAGER MATTI JUSLENIUS supervises the installation of the huge quay elements. In the background is the floating crane Maja, with a 18.8-metre-tall K element on its deck. Behind the crane, the backhoe dredger Attila is busily engaged in harbour basin deepening work. THE INSTALLATION OF THE HUGE QUAY ELEMENTS requires precise measurement and teamwork. In addition to measurement experts, crane and surfacing personnel as well as construction divers are also parti- cipating in the installation work.

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BOSKALIS AREA NORDIC´S OPERATING PRINCIPLES ARE: WE DO WHAT WE PROMISE — RIGHT FIRST TIME — WORKING TOGETHER