A simple model for stress-induced anisotropic softening of weak sandstones

Keyphrases

• Stress-induced 100%
• Weak Sandstone 100%
• Deformational 80%
• Hydrostatic Load 60%
• Shear Dilation 40%
• Deformational Characteristics 40%
• Loading Conditions 20%
• Isotropy 20%
• Material Parameters 20%
• Shear Loading 20%
• Constitutive Model 20%
• Finite Element Program 20%
• Bulk Modulus 20%
• Hard Rock 20%
• Deformational Behavior 20%
• Confining Pressure 20%
• Volumetric Deformation 20%
• Tunnel Excavation 20%
• Tunnel Squeezing 20%
• Failure State 20%
• Crown Settlement 20%
• Linear Elastic Model 20%
• Squeezing Tunnel 20%
• Anisotropic Material 20%
• Shear Softening 20%

Engineering

• Induced Stress 100%
• Anisotropic 100%
• Simple Model 100%
• Hydrostatic Loading 100%
• Engineering 33%
• Material Parameter 33%
• Constitutive Model 33%
• Bulk Modulus 33%
• Hard Rock 33%
• Confining Pressure 33%
• Loading Condition 33%
• Tunnel Excavation 33%
• E Modulus 33%
• Linear Elastic Model 33%
• Finite Element Analysis 33%
• Spatial Distribution 33%