Dozens of heavy cement panels fell off the tunnel's ceiling onto the roadway below today, trapping motorists.
今天，数十块由混凝土制成的隧道天花板掉落到路面，并砸中车辆。
Workers have erected scaffolding around the base of the tower below the roadway.
工人们已经在车行道下的塔基四周竖起了脚手架。
To accommodate the expansion and contraction of the concrete deck, each column splits into two thinner, more flexible columns below the roadway, forming an A-frame above deck level.
为了应对混凝土桥面的伸缩，立柱自路面以下被分为两根外形更纤细、柔韧性更高的柱体，桥面以上形成一个A形框架。
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