Pre-Tunnelling Equipment

YQC6000 Arch Type Pre-Tunnelling Machine

YQC6000 Arch Type Pre-Tunnelling Machine

YQC6000 arch type pre-tunnelling machine is one of core equipments used in tunnel construction. It consists of cutter assembly, arch assembly, travel assembly, concrete injection assembly, back-up system, electric system and hydraulic system, together with pre-tunnelling, synchronous injection, self-travel, rotating, adjusting of cutting in angle & radius & depth and self-diagnoses. It operates in equipped with special cutter to shape a groove in certain thick and depth, meanwhile, by means of jet sprayer to form a concrete shell in supporting the tunnel face. And the construction of excavation work, muck transport, arch inverting, lining and waterproof can be safely executed under the intensified shell. The equipment is excellent of safety, anti-settlement, anti-vibration, productivity and lower cost.
No.ItemsSpecificationsNo.ItemsSpecifications
1Rock compressive resistance≤10MPa2Tunnel Radius5.7-6.1m
3Thickness of pre-cutting250-350mm4Depth of pre-cutting3.5-5m
5Max. length of arch lap500mm6Range of cutter elevation angle0-8°
7Max. deflect angle of cutter±25°8Max. cutting depth of arch feet650mm
9Range of annular cutting0-205°10Annular cutting rate150mm/min
11Thrust power in annular cutting268kN12Cutting rate40m/min
13Cutting force96kN14Single steering angle±0.5°
15Max. rotating speed of injection boom3m/min16Max. telescope distance of injection boom5100mm
17Traveling rate10m/min18Drive force400kN
19Cutter speed rate1m/min20Cutter drive force500kN
21Single-step stroke5.5m22Max. slope
23Min. ground clearance200mm24Length of equipment≤15.6m
25Width of equipment≤11000mm26Height of equipment≤9100mm
27Abutments ground pressure≤0.15 MPa28Outrigger ground pressure≤0.15MPa
29Operating Voltage400V30Capacity≤150kW
31Capacity of cable box≥100m32Total weight≤120T
33Shift8小时34Device power300kW
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