Mathematical Problems in Engineering / 2016 / Article / Fig 4

Research Article

Upper Bound Solution of Safety Factor for Shallow Tunnels Face Using a Nonlinear Failure Criterion and Shear Strength Reduction Technique

Figure 4

Effect of and on the FOS for collapse failure mechanism ( = 5 kPa, = 20 kN/m3, = 10 kPa, = 24.73 kPa, = 0.2~1, = 1.0~2.0).

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