Earth retention features
Chance® anchors are a pre-engineered mechanical anchoring system providing stability for permanent and temporary shoring applications.
Chance earth retention systems
Earth retention is simply a method to shore or stabilize soil/rock that has been removed to form an excavation, cut or slope. Temporary or permanent structural retaining walls use soldier piles with wood lagging, sheet piles or structural diaphragm walls to resist lateral earth pressures from retained soil. Our helical tieback anchors are manufactured steel anchor elements consisting of a central steel shaft and one or more helical shaped bearing plates.
Helical tiebacks
Helical tieback anchors provide additional lateral support for many retaining wall designs. A helical tieback anchor is installed by rotating or screwing it into the ground. Each helical bearing plate is formed into a screw thread with a uniform defined pitch. The tieback anchors are installed into the ground until the helical plates are located in load bearing soil. The tieback anchor is then attached to the wall face. The lateral load is transferred to the tieback via threaded studs, load nuts, wall bearing plate, concrete embeds, or walers depending on the wall type and design.
Soil Screw anchors
Soil Screw anchors provide temporary or permanent stabilization of cuts and slopes. Our Soil Screw anchors consist of a central steel shaft and several helical shaped bearing plates spaced continuously along the shaft. Soil Screw anchors are installed by rotating or screwing into the ground until the required nail length is achieved. Each helical bearing plate is formed into a screw thread with a uniform defined pitch. The soil screw is then attached to the wall face.