Until the late 1990s, most scientists avoided introducing cultural heritage in the discussion about sustainability, despite its importance for societies.
In the famous Burtlandt report, architectural and cultural heritage are mentioned only twice-always in the context of threats for the whole human environment. Just a few years ago, cultural heritage was out of scope in documents and publications focused on sustainable development. The algorithm proposed could be beneficial to the protection of cultural heritage since it could also be applied to other structures, such as roof trusses, masonry walls, pillars, etc. In order to compute the displacement of the wall and its stability, numerical analysis was performed by the two-dimensional explicit Finite Difference Method (using the FLAC2D software). The method is used in the stabilization of the brick retaining wall, a part of the Wisłoujście Fortress located in Gdańsk, Poland. Appropriate formulas for scores meeting additional conservation and aesthetic requirements were proposed.
Optimization of several systems stabilizing retaining structure that are a historic object was considered in the paper. Therefore, they are strictly related to the philosophy of sustainable development which seeks adequate proportions between factors indicated on the natural and social environment. Construction works on cultural heritage sites tend to be challenging and require an interdisciplinary approach. The aim of the paper is to propose new quantitative criteria for selecting the optimal method of securing and repairing a historical object, which take into account Structural, Conservation and Architectural aspects (the S–C–A method).
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