Cutting and trepanning method for concrete chimney

Abstract

The invention discloses a cutting and trepanning method for a concrete chimney. The cutting and trepanning method comprises the steps of preparing a lifting appliance and a displacement frame, erecting a cross beam and a pulley block, installing a winch set, clamping and fixing cut concrete blocks, preparing for lifting and removing the cut concrete blocks and lifting and removing the cut concreteblocks. According to the cutting and trepanning method for the concrete chimney, through cooperation of the lifting appliance, the displacement frame, the cross beam, the pulley block and the winch set, a lifting and removing system for the cut concrete blocks is built on the concrete chimney, after concrete blocks are cut, through cooperation of the winch set, the pulley block and the displacement frame, the concrete blocks clamped and fixed by the lifting appliance are moved out of the wall of the concrete chimney and lifted away and removed, and cutting and trepanning of the concrete chimney are completed. According to the cutting and trepanning method for the concrete chimney, cutting and trepanning of the concrete chimney can be efficiently completed, the concrete blocks do not needto be accumulated on the chimney wall or a scaffold obtained after cutting and trepanning, the accumulated concrete blocks are prevented from collapsing and falling, sudden falling in the wall taking-out process is prevented, and injury accidents are avoided.

Description

technical field [0001] The invention relates to a method for cutting and opening holes in concrete, in particular to a method for cutting and opening holes in concrete chimneys, and belongs to the technical field of building construction. Background technique [0002] In some special cases, it is necessary to repair the interior of the concrete chimney. In this case, it is first necessary to cut holes in the partial wall of the concrete chimney so that maintenance personnel can enter the interior of the concrete chimney for relevant maintenance operations. . [0003] The cutting of concrete walls has many mature existing technologies, but the difficulty and key point of cutting and opening holes on the wall walls of concrete chimneys is that if a large number of concrete blocks produced after concrete cutting are not removed in time, they will easily fall from the Falling from a high altitude will cause damage to hoisting equipment and construction personnel, which not only...

AI Technical Summary

Problems solved by technology

[0008] Although these patented technologies provide methods and devices for lifting concrete blocks after removal from different levels, they are not very suitable for lifting concrete blocks produced when cutting holes from concrete chimneys, and there is no direct technical inspiration Can be used on cut holes in concrete chimneys

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