Encountering Pingoes
Graph showing the reduction in cutter head contact and torque and corresponding increase in excavated spoil weight as the TBM passed through the DFH
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Stratigraphy through the DFH following additional ground investigation -
Graph showing the reduction in cutter head contact and torque and... -
One of the August 2013 boreholes penetrating the NOS -
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Schematic showing the passage of the TBM through the DFH -
Emergency ground model showing DFH -
