A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
[Object] To provide a method for forming an anchor hole and a diameter expansion device by which a centrifugal force can be appropriately adjusted when a cutting-blade portion is moved in a radial direction by the centrifugal force to grind a diameter expansion portion. [Solution Means] In a method for forming an anchor hole 1 for a post-installed anchor 100 in which a diameter expansion drill bit 20 is inserted and rotated in a prepared-hole portion 3 bored in a concrete fixing body 2 and a cutting-blade portion 31 of the diameter expansion drill bit 20 is moved in a radial direction by a centrifugal force to grind a part of the prepared-hole portion 3 to form a diameter expansion portion 4, the minimum value of the centrifugal force applied to grind the diameter expansion portion 4 is 0.75 N and preferably 1.1 N.
[Object] To provide a method for forming an anchor hole and a diameter expansion device by which a centrifugal force can be appropriately adjusted when a cutting-blade portion is moved in a radial direction by the centrifugal force to grind a diameter expansion portion. [Solution Means] In a method for forming an anchor hole 1 for a post-installed anchor 100 in which a diameter expansion drill bit 20 is inserted and rotated in a prepared-hole portion 3 bored in a concrete fixing body 2 and a cutting-blade portion 31 of the diameter expansion drill bit 20 is moved in a radial direction by a centrifugal force to grind a part of the prepared-hole portion 3 to form a diameter expansion portion 4, the minimum value of the centrifugal force applied to grind the diameter expansion portion 4 is 0.75 N and preferably 1.1 N.
ANCHOR HOLE FORMATION METHOD
VERFAHREN ZUR HERSTELLUNG EINER ANKERBOHRUNG
PROCÉDÉ DE FORMATION D'UN TROU D'ANCRAGE
FUJITA SHOGO (author)
2023-08-09
Patent
Electronic Resource
English
IPC:
B23B
Drehen
,
TURNING
/
B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
,
Maschinen, Einrichtungen oder Verfahren zum Schleifen oder Polieren
/
B28D
Bearbeiten von Stein oder steinähnlichen Werkstoffen
,
WORKING STONE OR STONE-LIKE MATERIALS
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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