As cities expand, the depth and extent of excavations and underground structures in urbanareas will likely increase e.g. as a result of societal shift towards sustainable modes of transportation. Thecomplexity of excavations increases further due to strict regulations on the allowable deformations in the vicinity.Such restrictions during the construction phase not only affect the earth pressures in the short-term, but also mayaffect the long-term earth pressures against the permanent structure.The main aim of this project is to develop conceptual models and design charts for earth pressure againstpermanent structures in clay. The main objective is to replace design based on over-simplified methods (such asK0-factor design) with normalised earth pressure charts based on sound numerical studies. The scope of workentails analyses of measurement data from “part 1” of a PhD-project (Tornborg, 2020). Numerical studies arecarried out to generalise the results of site-specific data. The results are presented as normalised diagramscontributing to results that are scalable e.g. varying geometries, construction time, relative wall-soil stiffnesses.The knowledge from the project increases the understanding for which variables that substantially influence thedevelopment of earth pressure. This utilises sound design methods leading to reduced uncertainty and optimisationof construction material volumes for earth retaining and permanent underground structures.
Page manager Published: Tue 14 Dec 2021.
Please fill in a message
Send message
Thanks! We have received your message. If you have left your email address, you will receive a response from the editor-in-chief within 2-3 working days.