Evaluation of InSAR data for measuring the surface settlement during shield tunnel construction of the North-South Line in Amsterdam

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Abstract

This paper investigates the use of InSAR data during shield tunnel construction when short-term settlements occur within a few days. Additionally, the long-term settlement, which occur over several years, in the vicinity of these tunnels are evaluated with inSAR. The North-South Line in Amsterdam is used as a case study for this research. We used the settlement during construction as a-priori information to determine the most likely unwrapping solution for a few selected InSAR points. Then we verified this outcome with the traditional monitoring of the surface levelling points during construction and finally used only the InSAR to evaluate the long-term settlements. We conclude that with prior information InSAR data can be processed correctly and that InSAR can capture the short-term settlement that occur immediately during construction of a shield tunnel. Also, InSAR is a valuable complementary source of information because it provides data outside the area of the levelling points and gives information about settlement patterns prior to and after construction.

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 - Taylor & Francis Group
Pages137-144
Number of pages8
ISBN (Electronic)9780367337339
DOIs
Publication statusPublished - 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
CountryUnited Kingdom
CityCambridge
Period27/06/2229/06/22

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