Inverted Arch Bridge Formwork
Inverted arch bridge formwork
The YDZQ-series inverted-arch bridge formwork combines an invert trestle bridge with a complete invert formwork set, allowing tunnel face works and invert pouring to run in parallel. It suits rail and highway tunnel construction.
Features
Self-propelled trestle that does not require a tow vehicle.
Trestle is open to traffic with a maximum bearing capacity of 65 t, allowing face works and invert construction to run in parallel.
Wireless remote control with a signal range of more than 100 m.
Long-span variant supports a smooth tunnel cycle with extended clear span and formwork length.
Matched invert and central drainage formwork for consistent concrete quality.
Modular construction for fast transport and on-site assembly.
Approach ramps at 8 degrees suit standard site vehicles.
Trestle support uses four large-bore hydraulic cylinders with hydraulic locks to prevent pressure loss in service.
Plateau variant rated for operation up to 4,500 m altitude and -25 °C to +50 °C ambient.
Specifications
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| Parameter | Unit | YDZQ-12M / YDZQ-12 | YDZQ-24M / YDZQ-24 |
|---|---|---|---|
| Total weight | t | 51 | 62 |
| Overall size (L × W × H) | mm | 30,000 × 4,960 × 1,300 | 41,000 × 4,960 × 1,300 |
| Carrying capacity | t | 65 | 65 |
| Approach slope | ° | 8 | 8 |
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