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    • 16. 发明专利
    • FISH BANK AND SETUP THEREOF
    • JPH11266736A
    • 1999-10-05
    • JP7030498
    • 1998-03-19
    • HITACHI SHIPBUILDING ENG CO
    • SHIMIZU AKIO
    • A01K61/00
    • PROBLEM TO BE SOLVED: To provide a fish bank capable of effectively culturing small fishes (having culturing function) and capable of attracting large fishes using the small fishes thus cultured as targets (having fish-attracting function), and to provide for setting up the fish bank. SOLUTION: This fish bank is constructed by the following procedure: eight pole members 3 are set upright on the bottom bed 1 placed at the bottom 2 of the sea; among these pole members, the four members are arranged, on the upper part thereof, with shelters 4 for small fishes at intervals each narrower than the body lengths of large fishes; the remaining four members 3 in the vicinity of the shelters 4 are mounted with shielding plates 5 ensuring the downstream side of seawater current not to be seen and also securing a space of slow current of seawater in front of this fish bank so as to allow small fishes to stay; the bottom bed 1 is provided with a shelter 1c for large fishes, and each of the shelters 4 for small fishes is provided with holes 4a for small fish passage at intervals each greater than the body lengths of small fishes.
    • 20. 发明专利
    • REPAIR METHOD OF QUAY
    • JPH08277513A
    • 1996-10-22
    • JP7923995
    • 1995-04-05
    • HITACHI SHIPBUILDING ENG CO
    • SATO TOSABUROSHIMIZU AKIO
    • E02B3/06
    • PURPOSE: To omit time and labor in the restoration of facilities. CONSTITUTION: The fluidized and settled part of a reclaimed soil 3 is further reclaimed and an earth retaining wall 6 is erected at the upper end of a caisson 4. A plurality of steel pipe piles 7 are driven to the bottom of the sea and a steel guide base 12 provided with guide rails 11 is lowered from the upper side of the steel pipe piles 7. The head of steel pipe piles is inserted in the holes of the steel guide base 12 and the upper end face of steel pipe piles is set to contact the positioning plate and temporarily fixed. The guide base 12 is horizontally transferred by driving jacks to position mutual end faces of the guide rails 11. A fitting plate is welded to the inside of the steel pipe piles and the guide base 12 and fixed thereto. The temporarily fitting member and the head of steel pipe piles are cut off to level the upper face height of the steel pipe piles and the height of the upper guide plate 14. The fluidized and settled part of a reclaimed soil is further reclaimed and an earth retaining wall is erected on an inclined caisson 4, and hence, the fluidized soil is not required to be compacted again and also since the guide base and the piles are made of steel, the curing period is not required.