The Japanese came up with a new way to destroy buildings - from bottom to top
Kajima Construction Corporation has developed an original way of demolishing old buildings, in which the structure is not destroyed by a directed explosion, followed by the dismantling of gigantic blockages, is not dismantled from above on individual panels and walls with the help of cranes, and is not even broken in the old way with a ball-woman.
Instead of all this, the Japanese figured out how to carefully disassemble the skyscraper from the bottom up.
First, workers remove part of the supporting columns of the first floor, replacing them with powerful jacks. The entire building rests on these metal columns, while the builders, using small excavators and other simple equipment, break down the walls of the first floor, dismantle the floor and take the wreckage away.
Here's what such an unusual skyscraper demolition method looks like in practice:
As soon as the first floor disappears, the jacks slowly lower the tower down. Moreover, the computer controls all the folding columns, which ensures uniform “landing” of the building without the slightest distortions, from which it could collapse. This continues until the whole house disappears.
The Japanese informally called this method daruma-otoshi (daruma-otoshi). In honor of the old game, in which a person must clicks to beat out one by one the "checkers" that make up the daruma doll, so that the entire "structure" does not collapse.
Engineers note that daruma-otoshi is a safer method of demolishing skyscrapers than previous traditional methods. In addition, it produces much less noise and dust (since all work is carried out at ground level). Moreover, this demolition method accelerates work by 20%, and the materials obtained during the destruction of the building are easier to sort and dispose of.
Kajima is currently dismantling two buildings in Tokyo using the daruma-otoshi method: one is 75 meters high and 20 floors high, and the second 65 and 17 floors, respectively.
by realty.newsru.com
Instead of all this, the Japanese figured out how to carefully disassemble the skyscraper from the bottom up.
First, workers remove part of the supporting columns of the first floor, replacing them with powerful jacks. The entire building rests on these metal columns, while the builders, using small excavators and other simple equipment, break down the walls of the first floor, dismantle the floor and take the wreckage away.
Here's what such an unusual skyscraper demolition method looks like in practice:
As soon as the first floor disappears, the jacks slowly lower the tower down. Moreover, the computer controls all the folding columns, which ensures uniform “landing” of the building without the slightest distortions, from which it could collapse. This continues until the whole house disappears.
The Japanese informally called this method daruma-otoshi (daruma-otoshi). In honor of the old game, in which a person must clicks to beat out one by one the "checkers" that make up the daruma doll, so that the entire "structure" does not collapse.
Engineers note that daruma-otoshi is a safer method of demolishing skyscrapers than previous traditional methods. In addition, it produces much less noise and dust (since all work is carried out at ground level). Moreover, this demolition method accelerates work by 20%, and the materials obtained during the destruction of the building are easier to sort and dispose of.
Kajima is currently dismantling two buildings in Tokyo using the daruma-otoshi method: one is 75 meters high and 20 floors high, and the second 65 and 17 floors, respectively.
by realty.newsru.com
