TBM IN SOFT GROUND
TBM IN SOFT GROUND TBM IN SOFT GROUND
Course in Tunnelling and Tunnel Boring MachineKurs w zakresie drążenia tuneli oraz maszyny drążącejEARTH PRESSURE BALANCE SHIELD 1. Tunnel face 2. Cutting wheel 3. Excavation chamber 4. Pressure bulkhead 5. Thrust cylinders 6. Screw conveyor 7. Segment erector 8. Segmental Lining
Course in Tunnelling and Tunnel Boring MachineKurs w zakresie drążenia tuneli oraz maszyny drążącejEPB PRINCIPLEThe face support is provided by the excavated ground that is kept under pressureinside the excavation chamber by balancing the volume of the extracted andexcavated material and by the thrust jacks on the shield.Excavation debris is removed from the excavation chamber by a screw conveyor thatallows the pressure control by variation of its rotation speed.increasing / debasing thrust forceincreasing / debasing advance ratewaterpressureearthpressure
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Course in Tunnelling and Tunnel Boring MachineKurs w zakresie drążenia tuneli oraz maszyny drążącejEPB PR<strong>IN</strong>CIPLEThe face support is provided by the excavated ground that is kept under pressureinside the excavation chamber by balancing the volume of the extracted andexcavated material and by the thrust jacks on the shield.Excavation debris is removed from the excavation chamber by a screw conveyor thatallows the pressure control by variation of its rotation speed.increasing / debasing thrust forceincreasing / debasing advance ratewaterpressureearthpressure
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