| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently divide a concrete structure into a plurality of blocks with low noise and low vibration. <P>SOLUTION: A method of dividing a concrete structure 1 which divides the concrete structure 1 into a plurality of blocks 2 includes: a groove formation step of forming a plurality of grooves 4 in the surface of the concrete structure 1 so as to be along outlines of the respective blocks 2; a hole formation step of forming a hole 14 in each at least one part of the groove 4; and a division step of generating a crack along each groove 4 by expanding each hole 14. Each groove 4 is formed by a water jet device, each hole 14 is formed by a low noise type concrete core drill, and the crack along each groove 4 is generated by expansion means, whereby work for diving the concrete structure 1 into the plurality of blocks 2 can be efficiently performed with low noise and low vibration. <P>COPYRIGHT: (C)2013,JPO&INPIT |
