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5. 发明专利

JP4132414B2 Caisson mat 有权
公开(公告)号：JP4132414B2
公开(公告)日：2008-08-13
申请号：JP16235099
申请日：1999-06-09
申请人：株式会社ブリヂストン
发明人：真一梶ケ谷
IPC分类号： E02B3/06 , E02D23/02
CPC分类号： Y02A10/15
摘要： PROBLEM TO BE SOLVED: To prevent lowering of strength of an anchor bolt so as to improve safety in work by forming a substantially inverted truncated cone-shaped anchor member insert hole in a caisson mat. SOLUTION: In this caisson mat 1, a substantially inverted truncated cone- shaped anchor member insert hole 2 is formed, and a fixing member 3 for fixing an anchor member 5 and a reinforcement member 4 are provided. After the anchor member 5 is fitted to the caisson mat 1, a form is built thereon and concrete is cast to from a concrete caisson. At this time, the anchor member insert hole 2 is also filled with concrete 10. As a result, the corrosion surface when sea water enters is shifted from the interface between the caisson mat 1 and the caisson concrete 10 so that the corrosion of the anchor member 5 is delayed and the strength at the initial stage of installing the caisson can be secured enough by the concrete 10. Furthermore, since no bolt is used, the possibility of accidents resulting in injury by treading an anchor bolt into the sole is so eliminated that the safety can remarkably be improved.

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