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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.

products descrpition

 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