Workers dismantle the shield construction machine onsite in Xiamen, East China’s Fujian province, on Aug 21, 2018. Because of geological differences, the undersea tunnel for subway line 3 between Wuyuan Bay and Liuwudian stations needs two construction methods, one of which is the slurry shield. However, the shield machine must be dismantled once it reaches the halfway point, in order to make room for the other method, key to the whole project. [Photo/Xinhua]
Workers dismantle the shield construction machine onsite in Xiamen, East China’s Fujian province, on Aug 21, 2018. [Photo/Xinhua]
