The Use of Beam Compression Technology in the Design of Diaphragm Walls

When planning a project using diaphragm walls, the designer follows the recommendations and limitations set forth by design standards, as well as other guidelines describing, among other things, the maximum permissible displacements of the retaining structure. To limit deformations during construction, ground anchors, steel struts, or strut-supported slabs are used, among other measures. By utilizing prestressing technology, the author proposes an alternative method for constructing the underground portion of the project within a diaphragm wall enclosure. This proposal is based on the concept of one-sided prestressing of beams during construction. The results of model tests based on the author’s solution to the problem will be presented, including current implementation possibilities, limitations of the method, and the advantages of the presented concept in terms of schedule savings.
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A graduate of the Faculty of Civil Engineering at the Warsaw University of Technology, he is developing his own concept for the prestressing of diaphragm walls. He has been working in the industry since 2018 as a designer, construction supervisor, and site manager. His major projects include: Varso Tower, the expansion of the Wedel factory, and the expansion of the Ferrero factory.