| 摘要 |
PROBLEM TO BE SOLVED: To enhance the corrosion resistance and durability of joint parts of corrosion resistance steel sheet piles by fixing bolts toward water side to the joint parts at the side being sheathed with corrosion resistance metal clad steel plates. SOLUTION: Corrosion resistance steel sheet piles 3a, 3b are made of sheathing the surface of uneven parts of a steel sheet pile with a titanium steel plate 2 respectively, and the titanium steel plate 2 is secured to the face toward the water side of the steel sheet pile 1. In addition, a plurality of bolts 5 are vertically attached at predetermined distances to the part of both side joint parts not being sheathed with the titanium clad steel plate 2 in the corrosion resistance steel sheet pile 3a being positioned nearer than the joint parts of the corrosion resistance steel sheet pile 3b having adjoining joint parts. Furthermore, after connection driving the corrosion steel sheet piles 3a, 3b, a titanium or FRP cover member 6 is put on each bolt 5 to subsequently be screwed thereinto to close contact with the titanium clad steel plate 2 of the corrosion resistance steel sheet piles 3a, 3b being adjacent in their both side faces of the cover member 6 by nuts screwed on the bolts 5. This can enhance the corrosion resistance and durability of joint parts of corrosion resistance steel sheet piles 3a, 3b being sheathed with the titanium clad sheet plate 2.
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