Track Mounted Sawing
Case Study 2
Here
is an unusual situation in that we were asked to use our selective deconstruction
techniques to reduce these brand new lift shaft cores by approximately 20
metres. The cores were 8.500mm in length x 8.000mm in width with the external
walls being 300mm thick and the internal walls being 400mm thick.
The
walls were cut in to sections of 1.500mm with a length of 2.500mm, these
cuts were calculated so the crane next to the core could lift out the cut
sections and lower them down to the ground for conventional demolition machines
to take over.
Once
the vertical cuts were done in the walls 2No core holes were drilled in
the top half in preparation for the crane slings, a chase was cut both sides
to expose the re-bar content and locations, a hole was then cored along
this line and our Hydraulic Burster System deployed to burst up once the
crane had the strain.
The
saw cutting – drilling – bursting and lifting technique was
done systematically from top to bottom until the whole core shaft external
and internal walls were down to the required level.
