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).
(a)
(b)

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at help@hindawi.com to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.