boringsanker
Boringsanker, or drilled anchor, is a type of structural anchor used in civil engineering and geotechnical engineering. It is installed by drilling a borehole into rock, soil, or concrete and placing an anchorage element such as a steel bar or tube that is secured with grout or resin. With a grouted anchor, the borehole is cleaned, the anchor is inserted, and grout is pumped to fill the annulus, bonding the anchor to the surrounding material and providing tensile resistance. Resin anchors use epoxy or polyester resins injected into the hole before inserting the anchor; the resin cures and forms a bond around the anchor. Mechanical anchors (expansion or wedge anchors) may be used in easy-to-drill materials. In rock applications, the technique is known as rock drilling anchors or rock bolts.
Common applications include stabilization of slopes, rock supports for tunnels and excavations, anchoring retaining structures, and