Analytical prediction of ground movements due to circular shaft construction in clayey soils

Chen   Zheng; Andrea Franza; Rafael  Jimenez

doi:10.1139/cgj-2022-0381

Analytical prediction of ground movements due to circular shaft construction in clayey soils

Chen Zheng, Andrea Franza^*, Rafael Jimenez

^*Corresponding author af dette arbejde

Institut for Byggeri og Bygningsdesign - Structural Dynamics and Geotechnical Engineering

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

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Abstract

With the rapid expansion of urbanization, shafts are needed to provide access to tunnelling projects or be utilized for permanent works. Their construction causes ground movements, affecting nearby foundations and buried infrastructure. This study presents an analytical equivalent volume loss approach for predicting three-dimensional ground movements resulting from a circular shaft construction: namely, ground losses in the elastic isotropic half space as a sequence of cavity contractions around the shaft are employed. First, the applicability and accuracy of proposed solutions are evaluated with published case studies and centrifuge tests. Thereafter, the method is employed to investigate the influence of the circular shaft construction on the surface and subsurface soil displacements. Considering design ground losses, this method allows for quick estimations of ground deformations and associated risk of serviceability losses.

Originalsprog	Engelsk
Tidsskrift	Canadian Geotechnical Journal
Vol/bind	60
Nummer	8
Sider (fra-til)	1132-1139
Antal sider	8
ISSN	0008-3674
DOI	https://doi.org/10.1139/cgj-2022-0381
Status	Udgivet - 2023

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10.1139/cgj-2022-0381

circular_shaft_gf_aam_nonum-f32aqcygwvulky4corbxtlolq4rqgwz3Accepteret manuskript, 1,08 MBLicens: CC BY

Citationsformater

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abstract = "With the rapid expansion of urbanization, shafts are needed to provide access to tunnelling projects or be utilized for permanent works. Their construction causes ground movements, affecting nearby foundations and buried infrastructure. This study presents an analytical equivalent volume loss approach for predicting three-dimensional ground movements resulting from a circular shaft construction: namely, ground losses in the elastic isotropic half space as a sequence of cavity contractions around the shaft are employed. First, the applicability and accuracy of proposed solutions are evaluated with published case studies and centrifuge tests. Thereafter, the method is employed to investigate the influence of the circular shaft construction on the surface and subsurface soil displacements. Considering design ground losses, this method allows for quick estimations of ground deformations and associated risk of serviceability losses.",

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AU - Zheng, Chen

AU - Franza, Andrea

AU - Jimenez, Rafael

PY - 2023

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AB - With the rapid expansion of urbanization, shafts are needed to provide access to tunnelling projects or be utilized for permanent works. Their construction causes ground movements, affecting nearby foundations and buried infrastructure. This study presents an analytical equivalent volume loss approach for predicting three-dimensional ground movements resulting from a circular shaft construction: namely, ground losses in the elastic isotropic half space as a sequence of cavity contractions around the shaft are employed. First, the applicability and accuracy of proposed solutions are evaluated with published case studies and centrifuge tests. Thereafter, the method is employed to investigate the influence of the circular shaft construction on the surface and subsurface soil displacements. Considering design ground losses, this method allows for quick estimations of ground deformations and associated risk of serviceability losses.

KW - analytical solution

KW - ground loss

KW - ground movements

KW - shaft construction

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DO - 10.1139/cgj-2022-0381

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JO - Canadian Geotechnical Journal

JF - Canadian Geotechnical Journal

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ER -

Analytical prediction of ground movements due to circular shaft construction in clayey soils

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