Use of spile umbrellas to reduce deformation

A. Klinger, J. Fillibeck

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

For sprayed concrete tunnelling in loose soils, spiles and face-bolts are often employed as micro pile systems to stabilise the roof and the face of the tunnel. In this paper, four different construction methods of spile umbrellas will be presented for which extensive site measurements are available. These results will be compared with values from numerical simulations on a three-dimensional finite element model, which is calibrated on the above-mentioned headings. With the calibrated numerical model, the load bearing behaviour of the spile umbrellas can be shown with differentiation of the longitudinal and transversal load-bearing effect.

Original languageEnglish
Title of host publicationGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
EditorsMohammed Z.E.B. Elshafie, Giulia M.B. Viggiani, Robert J. Mair
PublisherCRC Press/Balkema
Pages576-583
Number of pages8
ISBN (Electronic)9780367337339
DOIs
StatePublished - 2021
Event10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022 - Cambridge, United Kingdom
Duration: 27 Jun 202229 Jun 2022

Publication series

NameGeotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022

Conference

Conference10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
Country/TerritoryUnited Kingdom
CityCambridge
Period27/06/2229/06/22

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