Influence of different freezing modes on the base slab displacement of an upper structure
The high risk of metro tunnels that are underneath buildings in a water-rich layer has received much attention. The base slab of an upper structure deforms due to frost heave and settlement, which needs to be predicted before freezing and excavation. In this paper, simulation experiments with a simi...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
MDPI
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/78290 |
| _version_ | 1848763953435377664 |
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| author | Wang, L. Wang, Y. Li, F. Liu, Z. Lu, Chunsheng |
| author_facet | Wang, L. Wang, Y. Li, F. Liu, Z. Lu, Chunsheng |
| author_sort | Wang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The high risk of metro tunnels that are underneath buildings in a water-rich layer has received much attention. The base slab of an upper structure deforms due to frost heave and settlement, which needs to be predicted before freezing and excavation. In this paper, simulation experiments with a similarity ratio of 1/25 were performed based on an engineering project where two tunnels underpass a running station through an artificial ground freezing method. The displacement of upper structures was analyzed under simultaneous and sequential freezing modes, with a simple formula proposed to estimate the frost heave in closely underpassing projects. It is shown that, under freezing and excavation stages, the base slab displacement displays a zigzag shape. These results are instructive to the construction of underpassing projects in a water-rich layer. |
| first_indexed | 2025-11-14T11:11:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-78290 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:11:39Z |
| publishDate | 2020 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-782902020-06-15T00:53:37Z Influence of different freezing modes on the base slab displacement of an upper structure Wang, L. Wang, Y. Li, F. Liu, Z. Lu, Chunsheng Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics artificial ground freezing frost heave freezing mode similarity simulation experiment freezing underpassing project FROST HEAVE TUNNEL SETTLEMENT PREDICTION FLOW CONSTRUCTION DEFORMATION DESIGN TESTS SOILS The high risk of metro tunnels that are underneath buildings in a water-rich layer has received much attention. The base slab of an upper structure deforms due to frost heave and settlement, which needs to be predicted before freezing and excavation. In this paper, simulation experiments with a similarity ratio of 1/25 were performed based on an engineering project where two tunnels underpass a running station through an artificial ground freezing method. The displacement of upper structures was analyzed under simultaneous and sequential freezing modes, with a simple formula proposed to estimate the frost heave in closely underpassing projects. It is shown that, under freezing and excavation stages, the base slab displacement displays a zigzag shape. These results are instructive to the construction of underpassing projects in a water-rich layer. 2020 Journal Article http://hdl.handle.net/20.500.11937/78290 10.3390/app10010027 English http://creativecommons.org/licenses/by/4.0/ MDPI fulltext |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics artificial ground freezing frost heave freezing mode similarity simulation experiment freezing underpassing project FROST HEAVE TUNNEL SETTLEMENT PREDICTION FLOW CONSTRUCTION DEFORMATION DESIGN TESTS SOILS Wang, L. Wang, Y. Li, F. Liu, Z. Lu, Chunsheng Influence of different freezing modes on the base slab displacement of an upper structure |
| title | Influence of different freezing modes on the base slab displacement of an upper structure |
| title_full | Influence of different freezing modes on the base slab displacement of an upper structure |
| title_fullStr | Influence of different freezing modes on the base slab displacement of an upper structure |
| title_full_unstemmed | Influence of different freezing modes on the base slab displacement of an upper structure |
| title_short | Influence of different freezing modes on the base slab displacement of an upper structure |
| title_sort | influence of different freezing modes on the base slab displacement of an upper structure |
| topic | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Engineering, Multidisciplinary Materials Science, Multidisciplinary Physics, Applied Chemistry Engineering Materials Science Physics artificial ground freezing frost heave freezing mode similarity simulation experiment freezing underpassing project FROST HEAVE TUNNEL SETTLEMENT PREDICTION FLOW CONSTRUCTION DEFORMATION DESIGN TESTS SOILS |
| url | http://hdl.handle.net/20.500.11937/78290 |