CRBC - Build King Joint Venture
SCA 2018 Contractor in New Works - Bronze Award
Practices
Construction work of a dual two-lane highway (Road P2) of approximately 600m of the highway with approximately 200m of the depressed carriageway is covered by landscape deck.
- To reduce the potential impact on the environment, the reclamation area is separated by a temporary steel cofferdam and double watergate
- To install floating breakwater at the southern edge of the temporary steel cofferdam before the upcoming typhoon season
- To apply sustainable recycling system to fully utilize the natural resources and reduce to use of energy
Temporary Steel Cofferdam
The reclamation area is separated by a temporary steel cofferdam. All dredging and filling works will be carried out inside the temporary steel cofferdam. This is the first time to adopt this reclamation method in Hong Kong.
Double Watergate System
To minimize sediment loss to the open sea, all barges entering and leaving the temporary cofferdam will be controlled by the double watergate system.
Floating Breakwater
Floating breakwater comprises individual polygon shape modules and assembles about 1.8m high and 2.8m wide. This unique polygon shape is beneficial for wave attenuation and protect the temporary steel cofferdam. This is the first time to adopt floating breakwater in reclamation works in Hong Kong.
Carbon particles filtering tanks have been installed on derrick barges to reduce dark smoke emission. Emission of smoke from plants with carbon particles has to pass through the tank filled with mixture of water and soda powder prior to emission from outlets. Carbon particles will be retained mixing with water inside of the tank.