METHOD FOR FORMING APERTURE IN CONCRETE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method for forming an aperture in a concrete structure by which an aperture can be formed with high accuracy and with ease regardless of a scale or the like of the concrete structure.

SOLUTION: The method for forming the aperture in the concrete structure includes a first step of cutting at least a part of a peripheral surface of a central block 111 along its edge by performing push-cutting with a wire saw 40 from a surface of the concrete structure 1, a second step of discharging the central block 111 to form a first division pit 11 and a third step of cutting out a peripheral block from a peripheral region of the first division pit 11 with the first division pit 11 as a working pit.

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