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Two- and three-dimensional analyses of excavation support with rows of dry deep mixing columns
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.ORCID iD: 0000-0003-2288-6925
Skanska Sweden AB.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.ORCID iD: 0000-0001-9615-4861
Skanska Sweden AB.
2015 (English)In: Computers and geotechnics, ISSN 0266-352X, E-ISSN 1873-7633, Vol. 66, 16-30 p.Article in journal (Refereed) Published
Abstract [en]

In this study, a 2D model of an excavation with a tied back sheet pile wall in interaction with perpendicular rows of deep dry mixed overlapping columns was compared to a 3D model. A method to take into consideration the effect of the overlap zones between columns in a 2D model, where the improved soil was modeled as a composite material, was investigated and the results between the 2D and 3D analyses were compared with focus on predicted failure load, failure mechanism and deformations. The results of this numerical study show that both the area improvement ratio of the improved soil and the quality of the overlap zone has a significant influence on how well a 2D model that incorporates the overlap zone between columns, performs compared to the 3D model.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 66, 16-30 p.
National Category
Geotechnical Engineering Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-160133DOI: 10.1016/j.compgeo.2015.01.011ISI: 000351981000002Scopus ID: 2-s2.0-84922719676OAI: oai:DiVA.org:kth-160133DiVA: diva2:788798
Note

QC 20150416

Available from: 2015-02-16 Created: 2015-02-16 Last updated: 2017-12-04Bibliographically approved
In thesis
1. Field and Laboratory Tests of Laterally Loaded Rows of Lime-Cement Columns
Open this publication in new window or tab >>Field and Laboratory Tests of Laterally Loaded Rows of Lime-Cement Columns
2015 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2015. xii, 55 p.
Series
TRITA-JOB. LIC, ISSN 1650-951X ; 2028
National Category
Geotechnical Engineering
Identifiers
urn:nbn:se:kth:diva-169046 (URN)
Presentation
2015-06-11, Sal B1, Brinellvägen 23, Byggvetenskap, KTH, Stockholm, 13:00 (English)
Opponent
Supervisors
Note

QC 20150610

Available from: 2015-06-10 Created: 2015-06-10 Last updated: 2015-08-25Bibliographically approved

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Larsson, Stefan

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