Drilling, grouting and tension testing are the three principal components of any rock anchor construction project
Le 4 août 2016, 10:00 dans Humeurs • 0
A rock anchor consists of a tendon and an anchorage. The tendon can consist of one or more solid steel bars, a single hollow bar, or a bundle of several high tensile steel strands. The tendon always features a bond length, and often features a free stressing length, over which a debonding mechanism or process ensures that the tendon is free to elongate without obstruction during tensioning. Drilling, grouting and tension testing are the three principal components of any rock anchor construction project. In the case of post-tensioned rock anchors, every installation is at least proof-tested by applying tension equal to 133% of the rock anchor's design loading.
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