The new Hong Kong-Zhuhai-Macau Bridge will provide a direct connection between the east and west banks of the Pearl River and facilitates economic development, particularly on the west coast. The approximately 50-kilometer new highway system includes 5,664 meters of immersed tunnel that goes as deep as 44.5m.
Pipes with 22-m diameters form two 100,000-sq-m artificial islands to provide transition points between the tunnel and bridge sections.
The massive steel pipes that form the outlines of the artificial islands were custom-built by Shanghai Zhenhua Heavy Industries and placed by eight vibratory hammer provided by American Piledriving Equipment Inc.
Eight vibratory hammers were combined into the "Octakong," to drive 72-m-diameter steel cylinders into place to form island perimeter walls—the largest piles ever driven.
An aerial view of the piledriving process.
Aerial view of one of the artificial islands.
A rendering of how one of the artificial islands will look when complete.
A rendering of the barges installing a tunnel segment.
An automated hydraulic formwork process formed each tunnel section, while a rail system pushes the finished section into the dry dock.
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