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 drążącejEPB vs. SLURRYEPB TBM•Muck is exposed into tunnel,contaminated grounds canpresent problems•Able to process a largerdiameter boulderSLURRY TBM•Contaminated muck is notexposed until it reaches thesurface•Requires a sophisticatedextraction system• Insulation of pipes from weather•Higher accuracy in pressureconfinement•Higher power requirement
Course in Tunnelling and Tunnel Boring MachineKurs w zakresie drążenia tuneli oraz maszyny drążącejEPB vs. SLURRYEPB TBMSLURRY TBM•High usage of energy on site, theslurry pumps must continuouslyfunction•Constant monitoring andadjustment of slurry parametersare required to achieve productionand muck removal requirements•Requires a overburden of at leastone TBM diameter as a minimum•Difficult to maintain slurry pressureat constant level when theextracting pipe clogs - up•Able to integrate rock crusher
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Course in Tunnelling and Tunnel Boring MachineKurs w zakresie drążenia tuneli oraz maszyny drążącejEPB vs. SLURRYEPB <strong>TBM</strong>•Muck is exposed into tunnel,contaminated grounds canpresent problems•Able to process a largerdiameter boulderSLURRY <strong>TBM</strong>•Contaminated muck is notexposed until it reaches thesurface•Requires a sophisticatedextraction system• Insulation of pipes from weather•Higher accuracy in pressureconfinement•Higher power requirement
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