金門港區浮動碼頭腐蝕之探討

Study of Floating-box Dock Corrosion at King-men Harbor

金門港為島際間及兩岸小三通運輸需求，於水頭及九宮碼頭建有4座浮動碼頭與1座躉船設施。為確保浮動碼頭正常運作，本研究針對其基樁與浮箱鋼材進行腐蝕現況調查。調查顯示，大部份基樁與浮箱平均腐蝕速率均低於設計規範，少數基樁與浮箱保護電位不足，建議水下浸水部位應補足防蝕需求，大氣部位選用耐磨、耐蝕塗裝系統，避免鋼材持續腐蝕。

Owing to communicating local islands and cross-strait transportation demanding, four floating-box and one grocery docks were built at Swe-tou and Cho-kon. For assuring ports normal operation, the actual corrosive situation of foundation piles of floating-box and grocery docks were surveyed in this study. The results of average corrosion rates of most piles and boxing were shown that the corrosion protection is below the design criteria. A few parts need more corrosion protections.