This is an investigative work by the authors, all of them former students and employees at Tecnosolo Ltd, the company founded by our late Professor Costa Nunes, to find and photograph the first tieback wall designed and built in 1957 by Tecnoloso under Prof Costa Nunes’ guidance.

Keywords: Tieback wall, Ground anchors, Tiebacks, Wedge method,

Submitted on June 20, 2023.
Final Acceptance on June 21, 2023.
Discussion open until November 30, 2023.
DOI: 10.28927/SR.2023.007423