What is time arrangement for HZQD900t beam launcher for tunnel?
In the bridge construction, it will help us a lot to control the project progress by learning time arrangement for passing tunnel of HZQD900t.
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Working |
Time arrangement |
Remark |
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1 |
Check all mechanisms of the beam launcher, prepare for passing tunnel by disassembling it |
0.5 day |
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2 |
Install inner sleeve for worksite shift and make it stand on rear girder carrier |
0.5 day |
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3 |
Dismantle rear support leg, fold its upper and lower part, the main girder moves backward |
1.5 days |
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4 |
Dismantle middle support leg, the main girder moves backward |
0.5 day |
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5 |
Fix middle support leg on girder transporter, front support leg draws back to the condition for passing tunnel |
0.5 day |
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6 |
Lower down the beam launcher and carry it with girder transporter for passing tunnel |
1 day |
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7 |
Rotate the front support leg down to stand on the pier, put down lower part of rear support leg, middle support leg supporting on girder transporter draws back, jack up the complete machine |
0.5 day |
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8 |
The complete machine moves longitudinally, connect inner guide pillar of middle support leg with bolts at lower part and stand on the road bed |
0.5 day |
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9 |
Draw back the front support leg, and move it to front roadbed and support |
0.5 day |
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10 |
The complete machine moves to position where the middle support leg could be assembled |
0.5 day |
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11 |
Assemble rear support leg, rotate the middle support leg, rear support leg moves to the position for girder installation |
1 day |
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12 |
Dismantle the support frame for worksite shift, girder transporter carries precast girder in the precast yard for girder installation |
0.5 day |
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12 |
Total |
8 day |
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