Figure 10
The illustration is a light‑brown 3-D surface model of sloping ground or a rock face viewed from above and slightly to the side. The surface has gentle ridges and depressions, and small grid‑like textures are visible in some areas. Scattered along the upper crest and across the slope are cone‑shaped markers in two colors: several red markers and a few blue markers that stand out against the pale background. In the upper‑right corner, a black horizontal scale bar labeled “1 meter” indicates distance on the model.Conical markers representing the computed change in protruding length of rockbolts relative to the surface