世界最大跨度斜拉桥这样建成（工匠绝活·我在重大工程一线）

Core Points - The Changtai Yangtze River Bridge, the world's largest span cable-stayed bridge, is nearing completion with expected operational status by August, significantly reducing travel time between Changzhou and Taizhou from 1 hour and 20 minutes to approximately 20 minutes, thus promoting coordinated development of cross-river urban clusters [2][3] Group 1: Construction Innovations - The bridge's construction has involved innovative techniques, such as the use of intelligent soil excavation robots, which have increased efficiency from 40 cubic meters per hour with six workers to 200 cubic meters per hour with one operator, allowing for a two-month acceleration in the sinking of the main tower's foundation [4][5] - The construction of the main tower has utilized a new flexible manufacturing production line for rebar, achieving automated production and mechanical shaping, with a production efficiency of eight units per hour and millimeter-level precision [5][6] Group 2: Advanced Materials and Techniques - The asphalt paving for the bridge has employed eight different paving structures and systems to address challenges posed by its large span and asymmetric loads, utilizing domestically produced materials to reduce reliance on imports [6] - The total area of asphalt paving on the bridge's upper and lower steel deck exceeds 250,000 square meters, completed in just 24 effective working days, equivalent to over 30 standard football fields [6]