Project name:
3DAS series， Intelligent 3D adjustment system applied in Hongkong-zhuhai-macao Bridge
Profile:
Hongkong-zhuhai-macao Bridge(HZMB) is part of G*4 highway, being  situated at the waters of Lingdingyang of Pearl River Estuary, is a mega-size sea crossing linking Hong Kong, Zhuhai City and Macao. The functions of the Bridge can meet the demand of passenger and freight land transport among Hong Kong, Mainland and Macao, to establish a new land transport link between the east and west banks of the Pearl River, and to enhance the economic and sustainable development of the three places. The project includes a *9.6 km dual *-lane carriageway and 6.7 km tunnel, this is the longest bridge-cum-tunnel structure in the world. designed speed is **0~**0km per hour.
Challenge:
Prefabricated pile caps 3D positioning in deep water. Underwater positioning device need to be pre-installed in the prefabricated Caps.
The collision issue between prefabricated pile cap and pre-installed cylinders in the process. Equipment reliability issues for use in deep water.
Solution:
Kattor provided solution including: four points synchronous lifting of steel pile and bridge pier, used ***0 tons of double acting cylinders to synchronous lift large diameter steel pile and bridge pier.
Underwater precise adjustment for bridge piers, set PLC controlling system to control 4 3DAS cylinders to do horizontal and longitudinal movement, and use PLC to control *2 **0tons self loading cylinders to do correction underwater.
3D precise positioning for concrete pre-casting girder and steel girder in offshore.
Kattor products:
***0 tons of double acting cylinders, **0ton of self locking cylinder, 3DAS cylinder.