World's biggest onshore caisson put into place
The world's biggest onshore caisson, as part of a railway-highway bridge across the Yangtze River in Zhenjiang, Jiangsu province, is put into place on Nov 10, 2017. The caisson is 100.7 meters long, 72.1 meters wide and 56 meters high. [Photo by Liu Yangsen/chinadaily.com.cn] |