The Comparative Analysis of the Stress-Strain State of the Support of the Escalator Tunnel Constructed in Weak Soils by the NATM

dc.contributor.authorRadkevych, Anatolii V.en
dc.contributor.authorTiutkin, Oleksii L.en
dc.contributor.authorKuprii, Volodymyren
dc.contributor.authorBielikova, Sofiiaen
dc.date.accessioned2022-04-26T07:53:05Z
dc.date.available2022-04-26T07:53:05Z
dc.date.issued2022
dc.descriptionA. Radkevych: ORCID 0000-0001-6325-8517; О. Tiutkin: ORCID 0000-0003-4921-4758; V. Kuprii: ORCID 0000-0002-7564-5191; S. Bielikova: ORCID 0000-0003-0707-7791en
dc.description.abstractENG: The construction of underground objects of the subway is always associated with building of structures connecting the surface. For subways, such structures are escalator tunnels. During the construction of the Dnipro Metro, these underground structures are built using a new technology that forms a multilayered support. This technology is the New Austrian tunneling method. A special feature of its application under the conditions of the Dnipro city is the existence of weak rocks in the upper part of the escalator tunnel. To ensure their stability, various special operational techniques are used that impact the rock massif. The basic techniques include artificial freezing, which was the dominant strengthening technology, and chemical strengthening (cementation), which is more consistent with the New Austrian tunneling method. To elucidate the effectiveness of the two strengthening techniques, a finiteelement model of the Dnipro Metro escalator tunnel has been built. The numerical calculation of two variants for the strengthening of weak soils yielded results for a comparative analysis of the stress-strain state. The result of the comparative analysis is the conclusion of greater cementation efficiency when strengthening weak soils of the massif in which the escalator tunnel is constructed using New Austrian tunneling method.en
dc.identifierDOI: 10.1088/1755-1315/970/1/012002
dc.identifier.citationRadkevych A., Tiutkin O., Kuprii V., Bielikova S. The Comparative Analysis of the Stress-strain State of the Support of the Escalator Tunnel Constructed in Weak Soils by the NATM. IOP Conference. Series : Earth and Environmental Science. 2022. Vol. 970, Iss. 1 : 3rd International Conference on the Essays of Mining Science and Practice, Virtual, Online, 6–8 October 2021. 012002. DOI: 10.1088/1755-1315/970/1/012002en
dc.identifier.urihttp://eadnurt.diit.edu.ua/jspui/handle/123456789/15115
dc.identifier.urihttps://iopscience.iop.org/article/10.1088/1755-1315/970/1/012002/meta
dc.language.isouk_UA
dc.publisherIOP Publishing Ltden
dc.subjectstress-strain stateen
dc.subjectescalator tunnelen
dc.subjectweak soilsen
dc.subjectsoilsen
dc.subjectcomparative analysisen
dc.subjectКБВuk_UA
dc.subjectКТІuk_UA
dc.titleThe Comparative Analysis of the Stress-Strain State of the Support of the Escalator Tunnel Constructed in Weak Soils by the NATMen
dc.typeArticleen
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