Full-bundle ejecting-drawing assembly for hanging rod replacement hole cleaning and method for dismounting old hanging rod
A boom and jacking technology, which is applied in bridge erection/assembly, bridge maintenance, bridge reinforcement, etc. It can solve the problems of high construction cost, long construction time, large size, and easy jamming of pneumatic picks or pneumatic drills in the gap between steel wires and cable guides. and other problems, to achieve the effect of low manual work intensity, short construction work time, and convenient standardized construction
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Embodiment 1
[0027] A whole bundle jacking device assembly for boom replacement and hole cleaning:
[0028] Such as Figure 1 ~ Figure 3 As shown, the whole bundle jacking device assembly includes U-shaped hoops 7, pole steel beams 6, flat jacks 5 and steel pads 4 installed in sequence;
[0029] In use state: the U-shaped hoop 7 and the steel wire anchor head 3 to be lifted are fixedly connected by welding; Between the bottom surface of the lower crossbeam 9 and the top surface of the end of the shoulder pole steel beam 6, the steel spacer 4 used as a height adjustment block of the flat jack is installed between the bottom surface of the boom beam 9 and the top of the flat jack 5, and the flat jack 5 is driven to lift the shoulder pole The steel beam 6 and the U-shaped hoop 7 realize the jacking up of the whole bundle.
[0030] In this embodiment, the U-shaped hoop 7, the pole steel beam 6, the flat jack 5 and the steel cushion block 4 in the whole bundle jacking device assembly for boom ...
Embodiment 2
[0032] A whole bundle of jacking steel wires and hole cleaning method for demolishing old suspenders of arch bridges
[0033] It is a method for removing the old suspenders of the arch bridge by using the suspension rod described in the first embodiment to replace the whole bunch jacking device assembly for hole cleaning, and implementing the whole bundle jacking steel wire and hole cleaning method, that is: first use the concrete core drilling rig Drill holes from top to bottom on the bridge deck to the anchor head section of the old suspender, and then use the whole beam jacking device assembly to use the hydraulic flat jack to jack up the steel wire or steel strand anchor head of the old suspender of the arch bridge, and finally carry out Clear hole, its specific method and steps are:
[0034] A. Drilling: use the concrete core drilling rig 8 to drill holes from top to bottom on the bridge deck to the anchor head section of the old suspender;
[0035] B. Install the whole ...
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