Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Application of barrel and wedge in other disciplines, (a) soil anchors7, (b) cable and suspension bridges8, (c) schematic of an instrumented anchor head to monitor axial load over time9.
