As an example, Canary Wharf has the benefit of extensive water frontage. The use of barges to bring construction materials to site and transport waste materials off the site has had an extremely beneficial impact on the construction process while mitigating the effects of construction traffic on local roads and in turn on the local community. We have also used the water to build an extensive network of temporary piled “water roads” to allow road traffic access to each construction site.
Temporary cofferdams have been extensively deployed as a site reclamation method. These have the benefit of allowing the construction of buildings with deeper basements and hence the consequent efficient utilisation of above ground space. Improving construction methodology has always been a goal of our construction team. Working jointly with consultants and contractors we have developed the use of high capacity base grouted piling techniques which later evolved into high capacity CFA piling. Slip forming is a method traditionally used in industrial buildings for chimneys and cooling towers where construction tolerances were not critical. We worked with our concrete contractors to improve tolerances and pioneered the use of slip forming for the construction of the concrete cores of our office buildings. This technique has now become and industry standard.
Our computerised delivery scheduling system allows us to co-ordinate vehicle arrivals on multiple projects, eliminating downtime as a result of materials shortages. We use on site marshalling centres to control the numbers of vehicles coming on the project at any one time. It is worth pointing to the expertise accumulated by CWCL in managing the construction of a number of high-rise structures in proximity to railways, as well as building two stations for the Docklands Light Railway while these railways were in full operation.