Anchor Stressing and Testing Services
On-site testing ensures the performance of the DYWIDAG Anchoring System. This demonstrates both the quality and adequacy of the proposed design. Depending on the application, the appropriate test method should be chosen. Some tests may be more rigorous and are therefore conducted on sacrificial trial elements, installed as replicas of the working tendons.
The testing of ground anchors generally involves three categories of tests:
Each test is conducted via loading and unloading cycles and increments up to a known load using a stressing jack. These are tailored to suit the respective test method chosen and capacity of the structural tendon.
On completion of the test, if specific tolerances are met, the anchor can be locked off at a known load. This becomes the datum for any future monitoring.
Testing and monitoring features economic advantages during the Service life of the tendon. With information gained from in-situ tests and trials, an optimised assessment of the construction design may be possible. Monitoring and regular inspection increase the service life of both the tendon and therefore the entire retaining structure, as defects or damage can be detected at an early stage.
More information is given in the relevant Codes and Standards BS8081 : 2015.