EXPLOSIVE DEMOLITION METHOD FOR REINFORCED CONCRETE STRUCTURE

摘要

PPROBLEM TO BE SOLVED: To provide a method for safely and efficiently demolishing a structure by labor saving for work, and facilitating control of an area crushed by explosion in the method for demolishing the reinforced concrete structure by explosion. PSOLUTION: Boundary grooves 21, 22, 23, 24, and 25 are cut from a surface of the structure in a boundary part between an area 13 crushed by explosion and an area 14 left without crushing of the reinforced concrete structure 3. These grooves are formed in the depth for exposing a reinforcement arranged in the structure, and the reinforcement is cut in these grooves. A vertical directional groove 28 is cut at a prescribed interval in the crushing area, and a hoop is cut in these grooves. Charge holes 41 and 42 are bored in the crushing area 13 of the structure, and an explosive is charged and exploded in these charge holes. The reinforcement cut in the grooves may be the whole of the exposed reinforcement, and may be left without cutting a part. PCOPYRIGHT: (C)2005,JPO&NCIPI