Evaluation of In‑service Stressing Force on Existing Temporary Ground Strand Anchors

In strand ground anchors, once the excess strand length has been cut off after installation, no accessible strand remains to which conventional load‑measuring devices (jacks) can be attached. As a result, it becomes impossible to directly verify or evaluate the actual force currently carried by the anchorage.

During a project, the need arose to determine the in‑service (operating) stressing force of several previously installed strand ground anchors. A method was required that could accurately assess the existing load despite the absence of exposed strand length.

HiSCS designed, procured, fabricated, and implemented a customized testing configuration for the assessment of existing temporary ground anchors. Our team installed a system of supplementary stressing plates, connected with high‑strength strands, and secured using additional barrels and wedges. A single‑acting, low‑profile hydraulic jack with a hand pump was positioned between the plates to operate as a proof‑load indicator. Detailed measurements were recorded throughout the stressing procedure, enabling accurate evaluation of the in‑service (operational) stressing force. Overall, the applied testing configuration facilitated a precise and comprehensive assessment of the anchors’ operational load‑bearing behavior.

HiSCS provides high‑quality, fit‑for‑purpose engineering services, built on proven expertise in specialized projects and complex implementations.

©[2022] Reyelise Ltd.

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