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Building bridges: spectacular project in the Pearl River Delta

The construction of the Hong Kong-Zhuhai-Macao Bridge is a particularly spectacular project. About 100 internal vibrators from Wacker Neuson are in application here every day.

 

The concrete segments for the underwater-tunnel with a length of 180 meters each are built on the island Guishan and thenm sinked at the exact spot in the open sea.

David Wei, Regional President Wacker Neuson Greater China, with chief engineer of this project,Mr. Dong Zheng

The former British crown colony of Hong Kong is still considered a pulsating economic magnet in the Middle Kingdom and a boomtown in the region. So that it stays this way in the future, streets, railways and roads are continuously being expanded. The construction of the Hong Kong-Zhuhai-Macao Bridge is a particularly spectacular project. About 100 internal vibrators from Wacker Neuson are in application here every day.

Around 2,000 employees are working around the clock on the mega job site. The main part of the Hong Kong-Zhuhai-Macau Bridge is 29.6 kilometers long and has three lanes in both directions. Among other things, it consists of two artificial islands as well as a bridge-tunnel-construction of around six kilometers in length. The required concrete segments — around 27,000 m³ of concrete are needed for each segment — are manufactured in a large basin that can be flooded from below. Ships then tow the finished components through the lock, out to the job site on the open sea.

Also present: about 100 Wacker Neuson internal vibrators of the premium model IRFU65, which are constantly in use. The internal vibrators are part of the broad product range of concrete technology in which Wacker Neuson has achieved core competency. As early as the 1930s, the company identified professional concrete compaction as a potential strategic business segment and invented the internal vibrator. Today, internal vibrators from Wacker Neuson are the best-selling worldwide. And safety as well as performance are more important than ever.

No wonder the workers of The Second Engineering Company of CCCC Fourth Harbor Engineering Co. Ltd. are very satisfied with the equipment and above all praise its light weight as well as its operating comfort. Also, chief engineer Mr. Dong Zheng, is excited about the Wacker Neuson internal vibrators: “Compared to other products, these units are much sturdier and more reliable. They have been tested and proven in long-time application. And because the cooperation with Wacker Neuson runs so smoothly, we are currently considering using the external vibrators of the company for our next major projects.”

Facts and Figures
Total length of the bridge:35.6 kilometers
Number of tunnel segments:33, each of 180 meters length
Estimated Construction time:2009 – 2016
Estimated project costs:RMB 38.1 billion (ca. US$ 5.8 billion)