Ground Anchors (also known as Grouted Anchors or Tie Back Anchors) are active system (prestressed and locked off) that transmit applied tensile load into the ground. Due to prestressing, deformations are controlled - either minimized or eliminated. Ground Anchors are used for excavations next to existing structures in urban areas, rock & slope stabilization, dam construction, underground constructions and tiedown structures. Our ground anchor system complies with EN 1537, BS EN 1997-1 and BS 8081.Ground anchor consists of three components; anchor head (anchorage), free stressing (unbonded) length and bond length. Anchor head transmits the prestressing force from the tendon (threaded bar or strands) to the structure that needs to be anchored. Smooth sheathing (bond breaker from the surrounding grout) over free stressing length ensures that the tendon elongates and transfers the resisting force from the bond length to the supporting structure. Bond length transfers the applied tensile load into the soil.Based on design working life, ground anchors can be classified into temporary (up to 2 years) and permanent (more than 100 years). Tendons used in a ground anchor system are threaded solid bar and strands.Selection of ground anchors shall be based on several factors such as accessibility, application, length of anchor, etc.
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