Earth pressure balance shield machine
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It cuts soil by the rotary cutter, the cut soil entering sealing soiltank, where the soil pressure inside keeps balance with the soil of the workingsurface, so as to control the surface subsidence effectively. The screwconveyor and leather conveyor carry out the soil continuously, and the segmentmachine supports and builds the wall, the entire surface of tunnel forms duringone time. The earth pressure balance shield machine is a set of tunnelconstruction equipment combined by mechanical, electrical, hydraulic, sensingand informatics technology, including characteristics of high efficiency,safety and reliable and high quality. It is widely used in tunnel projects suchas water conservancy, electricity, transportation and municipal pipelines. Itowns the fabrication capacity for different diameters from 3.5 to 15 meters.
Performance and parameters：(take Chinese city subway’s normal cave diameter for instance)
Excavation diameter: Φ6.18m
Host length:8.64m
Moving forwardspeed: 100mm/min
Driving power:550kw
Cutter speed:0-1.42rpm
Maximum torque:7300kN-m
Shield thrust:38500kN
Articulationangle: ±2⁰
Excavated volume of screw machine: 300m3/h
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- f = 1/P, where f is the frequency and P is the period P = 2π/(2πb) = 1/b, so P = b Let v = velocity v = ds/dt = -A sin (2πbt) ? 2πb = -2πAb sin (2πbt) Let f* = 2/b, so P* = 2π/(2/b) = bπ v* = -2πAb sin (πbt) The amplitude of the new velocity is 2πb times the original amplitude. Let a = acceleration a = dv/dt = -4π^2Ab^2 cos (2πbt) Let j = jerk j = da/dt = 8π^3Ab^3 sin (2πbt) a* = 8π^3Ab^3 sin (πbt) The amplitude of the new jerk is 8π^3b^3 times the original amplitude. An increased jerk means the machinery is subjected to greater stress, which causes it to break down.
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- Not true. Machinery and equipment does not make anyone more productive. Money, status, a title, perks - are human worker motivators. Machine(s) reduces the need for staff, and are more suited for repetitive work. Peace.
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Earth pressure balance shield machine
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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