At the design stage of the project we appointed a project manager who would act as the single point of contact and see the entire process through from start to finish. The project manager worked with the airport authorities and engineers to understand the challenges faced.
The products we supplied were manufactured in the United States and capable of handling well in excess of 200,000lbs of downward pressure. They had a unique “inverted flange” design to give better weight dispersion characteristics and spring assisted lifting struts so that lids could be lifted by single person, despite weighing in at over 300kg per lid.
The problem of airside working was solved by casting the covers in to the cover slabs in the landside compound and moving them airside as and when required. This limited the number of personnel required airside and also vastly reduced the amount of time spent on install.