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Subsurface Excavation Bogie TWZ180
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Subsurface excavation bogie is developed for subway tunnel engineering construction, and is applicable for the construction in soft soil and cobblestone stratums. It has the functions, such as earthwork excavation, excavation waste discharge, grooving, conduit digging, auxiliary support and auxiliary wet spray. It is designed with the external power supply, and is hydraulically driven crawler chassis walking and double-arm working equipment. It is characterized by high efficiency, environment-friendliness, compact structure and good manoeuvrability. It is free from the influence of tunnel section shape, and can replace the manual work in large area.
Subsurface excavation bogie is developed for subway tunnel engineering construction, and is applicable for the construction in soft soil and cobblestone stratums. It has the functions, such as earthwork excavation, excavation waste discharge, grooving, conduit digging, auxiliary support and auxiliary wet spray. It is designed with the external power supply, and is hydraulically driven crawler chassis walking and double-arm working equipment. It is characterized by high efficiency, environment-friendliness, compact structure and good manoeuvrability. It is free from the influence of tunnel section shape, and can replace the manual work in large area.
| Operation performance parameters | Unit | TWZ180 |
|---|---|---|
| Work range (W×H) maximum | m | 5×6 |
| Work range (W×H) minium | m | 3×2.9 |
| Applicable gallery nature | Soft soil, cobblestone, weathered rock etc. | |
| Outline dimensions (L×W×H) | m | 7.5×2 ×2.4 |
| Machine weight | kg | 18000 |
| Power supply voltage | V | 380 |
| Total installed power | kW | 90 |
| Gradeability | ° | ±26 |
| System pressure | MPa | 28MPa |
| Digging and loading means | Backhoe | |
| Material conveying capacity | m³/h | 120 |
| Material conveying means | Double-chain scraper/belt | |
| Milling and planing head power | kW | 45 |
| Cutting capacity of milling and planing head | kN | 17 |
| Drillhole diameter | mm | Φ27 -Φ42 |
| Drilling speed | m/min | 0.9～1.5 |
| One-time drilling depth | m | 2.1 |
| Wet-spray capacity | m³/h | 7m³/h |
| Maximum concrete conveying distance (horizontal) | m | 200 |
| Rated working gas pressure | MPa | 0.5 |
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