Research Article
Limit Analysis of Collapse Mechanisms for Tunnel Roofs Subjected to Pore Water Pressure: A Numerical Approach
Figure 7
Effect of tensile strength σt and compressive strength σc on collapse mechanisms. The parameters are A = 0.35, B = 5/6, − ht = 16.68 m, r = 3.75 m, C = 50 m, γsat = 28.33 kN/m3, and σt = σc/100.