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CORROSION PREVENTION APPARATUS FOR STEEL MATERIALS AND CORROSION PREVENTION METHOD FOR STEEL PIPE PILES
To provide corrosion prevention means for steel pipe piles with reduced labor and cost and ease of maintenance.SOLUTION: A corrosion prevention apparatus 2, which covers a part of a steel pipe pile 1 driven into the sea bottom SB and whose top end is exposed above the sea surface, comprises a container part 21, a joint part 22, and an open/close part 23. The container part 21 has a first opening 212 that communicates with seawater at a position that is lower than L.W.L. by at least half the maximum wave height in the state of being attached to the steel pipe pile 1 by the joint part 22, and a second opening 213 that communicates with the atmosphere at a point higher than H. W. L., and covers at least the portion of the steel pipe pile 1 that is exposed to the splash zone. The open/close part 23 opens and closes the second opening 213.SELECTED DRAWING: Figure 1
【課題】手間と費用が低減され、かつ、メインテナンス性の高い鋼管杭の防食手段を提供する。【解決手段】海底ＳＢに打設され天端が海水面より上に露出している鋼管杭１の一部を覆う防食器具２は、容器部２１と、接合部２２と、開閉部２３とを備える。容器部２１は、接合部２２により鋼管杭１に取り付けられた状態において、L. W. L.より最大波高の半分以上低い位置において海水と通じる第１の開口部２１２と、H. W. L.より高い位置において大気と通じる第２の開口部２１３とを有し、鋼管杭１の少なくとも飛沫帯に晒される部分を覆う。開閉部２３は、第２の開口部２１３を開閉する。【選択図】図１
CORROSION PREVENTION APPARATUS FOR STEEL MATERIALS AND CORROSION PREVENTION METHOD FOR STEEL PIPE PILES
To provide corrosion prevention means for steel pipe piles with reduced labor and cost and ease of maintenance.SOLUTION: A corrosion prevention apparatus 2, which covers a part of a steel pipe pile 1 driven into the sea bottom SB and whose top end is exposed above the sea surface, comprises a container part 21, a joint part 22, and an open/close part 23. The container part 21 has a first opening 212 that communicates with seawater at a position that is lower than L.W.L. by at least half the maximum wave height in the state of being attached to the steel pipe pile 1 by the joint part 22, and a second opening 213 that communicates with the atmosphere at a point higher than H. W. L., and covers at least the portion of the steel pipe pile 1 that is exposed to the splash zone. The open/close part 23 opens and closes the second opening 213.SELECTED DRAWING: Figure 1
【課題】手間と費用が低減され、かつ、メインテナンス性の高い鋼管杭の防食手段を提供する。【解決手段】海底ＳＢに打設され天端が海水面より上に露出している鋼管杭１の一部を覆う防食器具２は、容器部２１と、接合部２２と、開閉部２３とを備える。容器部２１は、接合部２２により鋼管杭１に取り付けられた状態において、L. W. L.より最大波高の半分以上低い位置において海水と通じる第１の開口部２１２と、H. W. L.より高い位置において大気と通じる第２の開口部２１３とを有し、鋼管杭１の少なくとも飛沫帯に晒される部分を覆う。開閉部２３は、第２の開口部２１３を開閉する。【選択図】図１
CORROSION PREVENTION APPARATUS FOR STEEL MATERIALS AND CORROSION PREVENTION METHOD FOR STEEL PIPE PILES
鋼材の防食器具、および鋼管杭の防食方法
MAEDA YUJI (author)
2022-01-17
Patent
Electronic Resource
Japanese
Evaluation of coatings for corrosion prevention of marine steel piles
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Steel Tank Corrosion Prevention
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