| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently demolish and remove only a ceiling board by leaving a light-weight steel bed as-is in the demolition of an existing ceiling. <P>SOLUTION: The ceiling board 4 is cut by a water jet from below the existing ceiling as a demolition target; and a cut object is cut off from the light-weight steel bed 3 and removed. The ceiling board is laterally and longitudinally cut via lateral and longitudinal cut lines C1 and C2; and the longitudinal cut line C2 is set in a position directly below the light-weight steel bed, so that the cut object can be cut off from a screw while the ceiling board is cut in a position near the screw 7. Otherwise, the longitudinal cut line C2 is set between the light-weight steel beds, and a drilled hole is formed around the screw, so that the cut object can be cut off. Lateral cutting is precedently performed. The position of the light-weight steel bed is detected using an autonomously-operated demolition robot; the cutting position and cut-off position of the ceiling board are set; and demolition work is automatically performed on the basis of them. <P>COPYRIGHT: (C)2010,JPO&INPIT |
