Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent
1995-08-15
1997-08-05
Tsay, Frank
Mining or in situ disintegration of hard material
Processes
Forming blocks
299 18, 299 66, E21C 900
Patent
active
056535082
ABSTRACT:
An apparatus and method is provided for demolishing concrete chimneys. The apparatus for demolishing concrete chimneys from the top downward comprises: (a) a first support, (b) a second support, (c) means for forcibly vertically moving the supports relative to each other, (d) a crane carried by said first support, and rotatably attached through an upright axis, and (e) means for power actuated rotation of the crane about the upright axis. A method for demolishing a concrete chimney from the top down is also provided, wherein the method comprises (a) placing the above apparatus on the top of the chimney, (b) demolishing sections of the chimney under the second support, (c) lowering the second support until the second support is supported by portions of the chimney remaining under where the demolished sections had been, (d) demolishing sections of said chimney which are at an elevation of the previously demolished sections leaving sections directly beneath first support, (e) raising the first support, (f) demolishing the sections directly beneath the first support, (g) repeating steps (b)-(f) to demolish the chimney in step-wise fashion. The apparatus and method provide for controlled efficient demolition of concrete chimneys.
REFERENCES:
patent: 3761551 (1973-09-01), Ogata et al.
patent: 4207066 (1980-06-01), Weldon
patent: 4270456 (1981-06-01), Theurer et al.
patent: 4462951 (1984-07-01), Martin
patent: 4546852 (1985-10-01), Martin et al.
patent: 5511268 (1996-04-01), Albus et al.
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