| 摘要 |
PURPOSE: A repair work to the middle part of a bridge dry well foundation is provided to prevent water pollution and the early corrosion of concrete and to reduce the costs required for maintenance. CONSTITUTION: The repair work to the middle part of a bridge dry well foundation(3) comprises the steps of leveling and removing the corrosion part of the well foundation(3) under the water, placing an FRP floor plate frame to the middle part of the dry well foundation(3), then connecting with an FRP frame(7) by a bolt and a nut, installing a strut(20) between the FRP frame(7) and a well, placing underwater concrete on the FRP floor plate frame, curing the concrete surface and removing water in the FRP frame(7), and placing concrete between the FRP frame(7) and the well to form a new evaporated thin film by a dry process.
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