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Abbreviations
- A b :
-
Cross-sectional area of rockbolt
- D b :
-
Diameter of rockbolt
- E b :
-
Elastic modulus of rockbolt
- E r :
-
Young’s modulus of rock
- F s :
-
Shear load at the joint of the rockbolt element
- F s, max :
-
Maximum shear load at the joint of the rockbolt element
- F s, y :
-
Shear load of rockbolt element at yielding
- I b :
-
Inertia of rockbolt cross section
- k 0 :
-
Bond stiffness of rockbolt element at the rockbolt/rock interface
- K s :
-
Shear stiffness of rockbolt element
- l e :
-
Hinge length of rockbolt element at joint
- N :
-
Axial load of rockbolt element
- N y :
-
Yielded axial load of rockbolt element
- N f :
-
Ultimate axial load of rockbolt element
- U b :
-
Axial movement of rockbolt
- U r :
-
Axial displacement of rockbolt
- U s :
-
Shear displacement of rockbolt at joint
- α o :
-
Deflection angle of rockbolt element crossing joint
- β :
-
Incline angle of rockbolt element at joint
- γ r :
-
Unit weight of rock
- τ :
-
Bond stress at the rockbolt/rock interface
- κ :
-
Concentration coefficient of the shear stress distribution at the cross section
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Acknowledgements
This work was supported by State Key Laboratory for GeoMechanics and Deep Underground Engineering (No. SKLGDUEK1819), and the National Natural Science Foundation of China (No. 51878446).
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Nie, W., Guo, W., Ma, S. et al. Numerical Modelling of Fully Grouted Rockbolts Subjected to Shear Load. Rock Mech Rock Eng 53, 2493–2503 (2020). https://doi.org/10.1007/s00603-020-02049-8
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DOI: https://doi.org/10.1007/s00603-020-02049-8