" The progress of modern science and technology has brought revolutionary changes to the traditional way of bridge maintenance. On December 18, the Longtan River Bridge in the Changyang section of the Shanghai-Chongqing Expressway in Hubei Province witnessed this historic moment. Two drones automatically hovering at an altitude of 160 meters carried out rust removal operations on the bridge piers, marking a new step taken by an operating company of Hubei Exchange in the field of bridge maintenance.

Efficient operation, security upgrade

"All systems are operational and ready for takeoff." With the instructions of the operating engineer, the drone loaded with rust remover quickly flew to the target point in just 2 minutes. After hovering at a safe distance, the drone cleaned the corroded steel bar area with water according to the preset instructions, completed the single node operation within 15 minutes, followed by rust removal and preservative spraying in the diseased area, and completed the entire construction within 45 minutes.

Technological innovation, cost savings

The maintenance of Longtan River Bridge, the largest pier in Asia, has always been a challenge. Traditional methods require manual climbing, which is time consuming and risky. Today, the use of drones not only ensures the safety of operators, but also greatly saves time and money. According to the on-site staff, the application of this technology has shortened the pier disease treatment time from 10 days to 5 days, and saved more than 1.6 million yuan.

BIM modeling, accurate construction

In this construction, BIM technology played a key role. Through UAV tilt photography and point cloud data acquisition, the spatial positioning, geometric features and architectural appearance of Longtan River Bridge were obtained, and BIM modeling and bridge body disease point labeling were completed. The application of this digital construction technology makes the construction more accurate and efficient.

Environmental protection materials, the effect is remarkable

In the selection of construction materials, the combination of new rust removal protective agent and anti-carbonization coating not only improves the treatment effect of pier disease defects, but also realizes the reduction of construction costs and the improvement of operation efficiency, and realizes the win-win situation of environmental protection and economic benefits.

P.S. This innovative initiative not only demonstrates the strong potential of technology in the field of bridge maintenance, but also provides new ideas and solutions for future bridge maintenance work. With the continuous progress of technology, Qirui New Materials has reason to believe that more Bridges will benefit from such scientific and technological innovation to achieve more efficient, safe and environmentally friendly maintenance operations. "