Quantifying the response of piled structures from displacements induced by pile installation in soft clay
Artikel i vetenskaplig tidskrift, 2025

The impact of pile installation in soft soils on its surroundings has been numerically investigated with a focus on the response of an existing piled structure. The originality is the parameterised 3D Finite Element Analyses of far-field soil-structure-interaction scenarios, i.e. interactions that are largely driven by mass-displacements. A main finding is that the geometry, that includes the number and length of newly installed and existing piles, the distance between the two pile groups and also the distance to stiff boundaries in the system (in the field and in the numerical analysis), govern the problem to a large extent. Therefore, to simplify the analysis of such complex cases, modification factors for the displacements in greenfield conditions are proposed, to calculate the displacement and structural response of the existing structure. The proposed non-dimensional factors are a function of the length of the newly installed and existing piles and the distance between the two pile groups. No unique solution exists, hence a series of charts have
been compiled to provide a first assessment of the impact of an existing piled structure on the induced displacements from the installation of a nearby group of displacement piles in soft soil.

clay

soil-structure interaction

building response

pile installation

displacements

Författare

Jonatan Isaksson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Mats Karlsson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Jelke Dijkstra

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Canadian Geotechnical Journal

0008-3674 (ISSN) 1208-6010 (eISSN)

Vol. [Preprint]

BIG 2019-19 Störningsproblem med pålar i lösa jordar del 2.

Trafikverket (TRV2023/19054), 2023-02-15 -- 2025-10-31.

Ämneskategorier (SSIF 2025)

Geoteknik och teknisk geologi

DOI

10.1139/cgj-2024-0387

Mer information

Senast uppdaterat

2025-01-31