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List of symbols Ff Thrust force to overcome friction (MN) Fn Cutterhead thrust force (MN) Fr Required thrust force (MN) R Tunnel radius (m) H Major horizontal principal stress (MPa)… Click to show full abstract
List of symbols Ff Thrust force to overcome friction (MN) Fn Cutterhead thrust force (MN) Fr Required thrust force (MN) R Tunnel radius (m) H Major horizontal principal stress (MPa) h Minor horizontal principal stress (MPa) v Vertical stress (MPa) xx X-component of normal stress (MPa) yy Y-component of normal stress (MPa) zz Z-component of normal stress (MPa) ?̄?xx X-component of average normal stress (MPa) ?̄?zz Z-component of average normal stress (MPa)
Keywords:
mpa component;
stress mpa;
stress;
normal stress;
rock
Journal Title: Rock Mechanics and Rock Engineering
Year Published: 2019
Link to full text (if available)
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Journal Title: Rock Mechanics and Rock Engineering
Year Published: 2019
Link to full text (if available)
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recommendations!