Rate-dependent response of excavations and permanent underground structures
As cities expand, the depth and extent of excavations and underground structures in urban
areas will likely increase e.g. as a result of societal shift towards sustainable modes of transportation. The
complexity 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 may
affect 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 against
permanent structures in clay. The main objective is to replace design based on over-simplified methods (such as
K0-factor design) with normalised earth pressure charts based on sound numerical studies. The scope of work
entails analyses of measurement data from “part 1” of a PhD-project (Tornborg, 2020). Numerical studies are
carried out to generalise the results of site-specific data. The results are presented as normalised diagrams
contributing 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 the
development of earth pressure. This utilises sound design methods leading to reduced uncertainty and optimisation
of construction material volumes for earth retaining and permanent underground structures.
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Senior Lecturer, Architecture and Civil Engineering, Geology and Geotechnics , Geotechnics
Mats is a Senior Lecturer in the Division of Geology and Geotechnics, research group Geotechnics.
Senior Lecturer, Architecture and Civil Engineering, Geology and Geotechnics, Geotechnics
Ayman Abed is a Senior Lecturer in the Division of Geology and Geotechnics, research group Geotechnics. He is interested in studying the coupled thermo-hydro-mechanical-chemical (THMC) behavior of...
Full Professor, Architecture and Civil Engineering, Geology and Geotechnics, Unit manager of the Geotechnics Research Group.
Minna is a Full Professor in the Division of Geology and Geotechnics, and unit manager research group Geotechnics. The focus of her research is the complex rate-dependent stress-strain behavior of...
Industrial doctoral student, Architecture and Civil Engineering, Geology and Geotechnics, Geotechnics
Johannes is an industrial doctoral student at the Division of Geology and Geotechnics, research group Geotechnics. Johannes conducts his research studies within the project "Time-dependent response...
- Digital Twin Cities Centre (Centre, Sweden)
- Swedish Transport Administration (Public, Sweden)