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2. 发明专利

JPH10331154A METHOD FOR PROCESSING CONCRETE EXTRA BANKING PART 失效
公开(公告)号：JPH10331154A
公开(公告)日：1998-12-15
申请号：JP14533297
申请日：1997-06-03
申请人： NIPPON KOKAN KK
发明人： OGAKI BUNJI , TAKIO JUNICHI , KAWARADA AKIHIKO , YAMAMOTO YUKINORI
IPC分类号： E02D5/34
摘要： PROBLEM TO BE SOLVED: To reduce vibration and dust upon withdrawal so as to easily remove a concrete extra banking part by attaching a member to be buried, composed of a spherical members which can float in water, and which are connected together by means of wires, to the internal reinforcing bars in the concrete extra baking part, and by removing the extra banking part after concrete cast into the extra banking part is solidified. SOLUTION: A member A to be buried, is composed of spherical members 1 which can float in water, and wires 2 connecting the former. For example, when an extra banking part of a concrete pile which is built in the site is processed, the member A to be buried is fastened by a fastening wire 5 to the head part of an internal insertion reinforcing steel cage 4 after an excavated hole 3 for the concrete pipe is formed, and the reinforcing steel cage 4 is built in the excavated hole 3, and concrete 6 is placed. At this time, the member A to be buried floats in the concrete. Finally, the extra banking concrete 7 is removed. In this case, by setting the distance between the spherical members 1 and the side surface of the concrete pile to be small, and accordingly, the chipping of a thin covering concrete and the destruction of the spherical member body can be facilitated, thereby it is possible to simply remove the extra banking.

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