Figure 3
From: Microanchored borehole fiber optics allows strain profiling of the shallow subsurface
Comparison between experimental and theoretical maximum pullout resistances at varying diameters of disc-shaped microanchor. In addition to modified punching shear failure adopted in this study for describing microanchor bearing failure, upper- and lower-bound values constrained from general and punching shear failure mechanisms are also depicted. The input parameters for theoretical modeling are: \(\sigma_{{\text{n}}}\) = 1.36 kPa; \(c\) = 0; \(\phi\) = 30°; \(L_{{\text{c}}}\) = 0.5 m; \(D_{{\text{c}}}\) = 0.002 m; and \(D_{{\text{a}}}\) = 5–50 mm.
