Construction Business News Middle East - - Supplier News -

Mammoet says that its LR1750 crawler crane was the only crane in the UAE ca­pa­ble of meet­ing the de­mand­ing re­quire­ments of the prepa­ra­tion work for the new Foun­tain 6iew Link-bridge, which is be­ing built as part of an ex­ten­sion to the Dubai Mall.

Con­trac­tor Eversendai is over­see­ing the erec­tion of the new bridge. When com­pleted, it will con­nect the ex­ist­ing mall to a new sec­tion and help ex­pand the num­ber of re­tail out­lets and pro­vide a walk­way to fur­ther park­ing.

Ac­cord­ing to Mammoet, the de­ploy­ment of the crane faced a num­ber of chal­lenges af­ter it was asked to com­plete the lift­ing and in­stal­la­tion of the 16 steel gird­ers that form the base of the bridge. Proj- ect con­straints meant that the crane needed to have a min­i­mal foot­print and low ground bear­ing pres­sure and Mammoet’s LR1750 was the only avail­able crane in the UAE that com­plied with all tech­ni­cal re­quire­ments.

With each girder weigh­ing be­tween 8 t and 172t and placed within two sec­tions, the lifts were car­ried out on Sheikh Mo­hammed bin Rashid Boule­vard, the main road that runs around Dubai Mall. Mammoet in­stalled the lrst set of gird­ers on the Foun­tain 6iew side of the road be­fore the whole op­er­a­tion was then moved to the mall side of the road where the other halves of the gird- ers were in­stalled, ready for con­nec­tion in the mid­dle.

With only two out of six lanes closed to min­imise dis­rup­tion to traflc, the crane had to ma­noeu­vre in a tight space. Ad­di­tion­ally, wa­ter pipes un­der the area of op­er­a­tion that sup­ply Dubai Mall and the whole of Down­town Dubai pro­vided a fur­ther en­gi­neer­ing chal­leng­ing.

“To avoid dam­ag­ing them, it was im­per­a­tive that the crane kept within the ground bear­ing pres­sure tol­er­ance,” Mammoet said in a state­ment. “Care­ful en­gi­neer­ing cal­cu­la­tions were made for the lifts to en­sure that the LR1750 could lift the gird­ers and ma­noeu­vre in to place with­out near­ing traflc or go­ing over the ground bear­ing pres­sure limit.”

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