A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CUTTING EDGE STRUCTURE, METHOD FOR VERIFYING DAMAGE OF CUTTING EDGE AND METHOD FOR REPAIRING CUTTING EDGE
PROBLEM TO BE SOLVED: To provide a cutting edge structure, a method for verifying damage of a cutting edge and a method for repairing a cutting edge, which secure workability of drilling operation, and with which a repair work is easily carried out.SOLUTION: A cutting edge structure that is provided annularly along an outer periphery of the lower end of a caisson skeleton 10 comprises a concrete-made cutting edge main body 21 integrally provided in a bottom slab 12 of the caisson skeleton 10 and protruding downward from the outer peripheral edge of the bottom slab 12, and a cutting edge steel plate 22 covering at least a tip portion of the cutting edge main body 21 through the whole circumference. In the cutting edge steel plate 22, a through hole 22a that penetrates in a thickness direction is formed, communicating with the through hole 22a at the inner peripheral side of the cutting edge steel plate 22, and a valve 25 for opening/closing the through hole 22a is provided.SELECTED DRAWING: Figure 2
【課題】掘削作業の作業性を確保しつつ、補修作業を容易に行うことができる刃口構造、刃口損傷確認方法及び刃口補修方法を提供する。【解決手段】ケーソン躯体１０の下端部の外周に沿って環状に設けられた刃口構造であって、ケーソン躯体１０の底版１２に一体に設けられ、底版１２の外周縁から下方に向けて突出したコンクリート造の刃口本体２１と、刃口本体２１の少なくとも先端部を全周にわたって覆う刃口鋼板２２と、を備え、刃口鋼板２２には、厚さ方向に貫通する貫通孔２２ａが形成され、刃口鋼板２２の内周側で貫通孔２２ａに連通するとともに、貫通孔２２ａを開閉するためのバルブ２５を備えている。【選択図】図２
CUTTING EDGE STRUCTURE, METHOD FOR VERIFYING DAMAGE OF CUTTING EDGE AND METHOD FOR REPAIRING CUTTING EDGE
PROBLEM TO BE SOLVED: To provide a cutting edge structure, a method for verifying damage of a cutting edge and a method for repairing a cutting edge, which secure workability of drilling operation, and with which a repair work is easily carried out.SOLUTION: A cutting edge structure that is provided annularly along an outer periphery of the lower end of a caisson skeleton 10 comprises a concrete-made cutting edge main body 21 integrally provided in a bottom slab 12 of the caisson skeleton 10 and protruding downward from the outer peripheral edge of the bottom slab 12, and a cutting edge steel plate 22 covering at least a tip portion of the cutting edge main body 21 through the whole circumference. In the cutting edge steel plate 22, a through hole 22a that penetrates in a thickness direction is formed, communicating with the through hole 22a at the inner peripheral side of the cutting edge steel plate 22, and a valve 25 for opening/closing the through hole 22a is provided.SELECTED DRAWING: Figure 2
【課題】掘削作業の作業性を確保しつつ、補修作業を容易に行うことができる刃口構造、刃口損傷確認方法及び刃口補修方法を提供する。【解決手段】ケーソン躯体１０の下端部の外周に沿って環状に設けられた刃口構造であって、ケーソン躯体１０の底版１２に一体に設けられ、底版１２の外周縁から下方に向けて突出したコンクリート造の刃口本体２１と、刃口本体２１の少なくとも先端部を全周にわたって覆う刃口鋼板２２と、を備え、刃口鋼板２２には、厚さ方向に貫通する貫通孔２２ａが形成され、刃口鋼板２２の内周側で貫通孔２２ａに連通するとともに、貫通孔２２ａを開閉するためのバルブ２５を備えている。【選択図】図２
CUTTING EDGE STRUCTURE, METHOD FOR VERIFYING DAMAGE OF CUTTING EDGE AND METHOD FOR REPAIRING CUTTING EDGE
刃口構造、刃口損傷確認方法及び刃口補修方法
ONODA HAJIME (author) / ENDO KAZUO (author) / ONO HIROTSUGU (author) / NAKANO TAKAAKI (author)
2018-04-05
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
CUTTING EDGE STRUCTURE, CUTTING EDGE PIECE, AND CUTTING EDGE REPAIR METHOD
| European Patent Office | 2018
SNOW PLOW CUTTING EDGE DEVICE AND CUTTING EDGE ATTACHMENTS
| European Patent Office | 2023
SNOW PLOW CUTTING EDGE DEVICE AND CUTTING EDGE ATTACHMENTS
| European Patent Office | 2023