Revetment upgrade along Alexandra Parade using 20T X Bloc Units
Ashleigh Contracts were engaged by Main Contractor McLaughlin & Harvey as specialist breakwater and rockworks subcontractor in early 2021 to undertake the construction of an XBloc Revetement along the north side of Alexandra Parade in Peterhead to provide urgent coastal protection to harbour assets and buildings for Peterhead Port Authority.
Ashleigh’s involvement comprised:-
In addition to the full use of Prolec PCX 3D GPS machine control on all lead-machines constructing the works, Ashleigh Contracts also deployed an Echoscope 3D sonar attached to the CAT345 Long Reach required for any underwater placement of the 20T XBloc using a specialist 200T heavy-lift excavator, a Hitachi EX1200XXL. The live sonar imagery from the Echoscope to be shared by wireless link between the two machines during the placement of each xBloc unit below water to achieve the best possible interlock. An in-house developed hydraulic rotating and remote-sling release system was also used on the EX1200XXL in the placement of Accropodes to negate the use of divers and reduce the requirement for slinger banksmen at the point of release.
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Ashleigh Contracts attempt as far as possible to carry out all contracts works using their own range of specialist marine civil engineering plant & equipment and keep a core staff of experienced management and skilled operatives who operate as distinct teams on projects throughout the UK and Ireland.
