CAT Dealership Retaining Wall
Secant Piling

Project Description:

Design and construct contract for a new headquarters complex for McCormick Macnaughton the NI and RoI Caterpillar Agents. The complex consists of specialised workshops, stores, integral two-storey office accommodation, access road, hard and soft landscaping, concrete yard, hard to hard secant pile retaining wall and all M&E including services. Works included:

Construction of a steel portal framed building some 66m x 30m with a facing brick and profiled metal cladding exterior containing:-

Main Workshop area 835 m2, Track Workshop area 270 m2, Spray Room -area 70 m2,

Parts Store area 585 m2, Tyre Store area 310 m2, Administration area 870 m2.

Some 18,500 m3 of cut to fill earthworks were required, together with some 3,400 m3 of stone fill, to provide a suitable formation for the building. Construction of the ground floor slab, pad and strip foundations involved the provision and placing of some 600 m3 of concrete, reinforced with steel mesh. 9,500m2 of geotextile envelopes under concrete areas.

First floor construction consisted of 775 m2 of profiled metal decking with an in-situ reinforced concrete deck, averaging some 150mm in thickness, and a 100mm thick finishing screed.

Construction of 1400 m2 of blockwork walls and 660 m2 of brick faced cavity walls with blockwork inner leaf. Provision of some 4000 m2 of plastic coated profiled metal cladding and roofing. A 200m long 4m retained height hard to hard secant pile wall provided split level site.

Construction of access roads to the front of the building consisting of 1000 m2 of 100mm thick bitmac/asphalt and 2,300 m2 of 80mm brick paviors on 400mm of imported stone.

Construction of access roads and yard area to the rear and side of the building consisting of 9,500 m2 of concrete, reinforced with steel mesh/fibre mesh, on 300mm of imported stone.

Installation of some 1,400 m of foul and storm drainage and associated manholes and gullies.

The remainder of the area, some 2,500 m2, was topsoiled and sown with grass and planted with some 500 trees and shrubs. External yard lighting was included

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  • Location:
    Lisburn

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DAWSON-WAM are specialist civil engineering and piling contractors with operations throughout the UK and Ireland.

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