It is necessary to tear down an old 4-story cast-in-place factory building in order to put in landscaping and a parking lot for a new building. A newer annex, however, is to be saved. Is there any way to use explosive demolition without damaging the annex? The annex is attached to two sides of the old building.
It is possible to demolish with explosives if one bay of columns and floors are first removed by hand. After that, demolition experts can drop the building and leave the annex intact.