Undercutting involves removing the upper layers of existing native soils, which are unsuitable for construction, and replacing them with compacted engineered fill
or other approved fill materials.
The port is also exploring other ways to use dredge material including cover for landfills, soils amendments and engineered fill
More than 400,000m3 of inert engineered fill
will be used to prepare the 40 acres of land.
Under the approval and authorization of the regional regulator, the facility implemented an initial 10-year written agreement with a partnering construction company to beneficially reuse the cupola iron slag and dry sand/ cement waste by-product as engineered fill
in local construction projects.
Today, the $7.5 million, 32,000 square-foot building features salvaged brick and masonry, reused engineered fill
and foundations, a water conservation strategy that starts with dual-flush toilets, sustainable materials and sunlight harvesting through large low-e glass windows.
It will be constructed using recycled materials and engineered fill
from other major projects in the region, making the "new shore" the country's first 100% recycled park.
Each pier and abutment location was overexcavated and built back with engineered fill
, distributing the load of the shallow spread or "floating" footers.
Next he brought in engineered fill
, laid down and compacted in 6-inch layers to bring the soil to 98 percent compaction, tested on site by a soils engineer.
Contractors also installed the new escalators and stairs, placed and compacted engineered fill
, and then reconstructed the portions of Chicago Avenue and State Street that had been excavated.
Off-site disposal costs were minimised by recycling demolition waste to produce an engineered fill
, burnt shale was used beneath areas of soft landscaping/leisure use and ground improvement techniques used to produce a stable platform for construction.