As with any project of this magnitude, complex tasks are addressed. For example, soil conditions led to borehole instability. In response, the JV’s subcontractor proposed a slurry method of construction for the drilled pier foundations, using polymer slurry to keep the borehole stable for the entire depth of the excavation. Reinforcing steel was then placed into the slurry, and concrete was injected using a concrete pump beginning at the bottom of the excavation.
The project schedule is also intricate. Public advertising, subcontractor selection, contract awards, subcontract terms negotiations, construction planning, and submittal processing had to occur on a fast-track schedule. The JV created individual work packages for the early critical-path scopes to allow smaller subcontract negotiations and accelerated mobilization and to include more local construction firms in the project.