| 摘要 |
PROBLEM TO BE SOLVED: To suppress dust generation while reducing costs, and enhance efficiency of demolition work.SOLUTION: A demolition method for a concrete structure includes the following steps for: drilling a plurality of injection holes 12 extending inward from a surface of a concrete structure 10 to be demolished, using a hammer drill 2 and other conventionally well-known tools (a first step); infiltrating liquid L inside the concrete structure 10 by connecting a tip of a liquid injection hose 16 to an attachment 14 and pressure-injecting the liquid capable of infiltrating the concrete structure 10 from each of the injection holes 12 through the hose 16 from a liquid injection device 18 (a second step); and demolishing the concrete structure 10 while inside of the concrete structure 10 is infiltrated by the liquid L (a third step).SELECTED DRAWING: Figure 3 |
