Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments
Affected by climate warming and anthropogenic disturbances, the thermo-mechanical stability of warm and ice-rich frozen ground along the Qinghai–Tibet Railway (QTR) is continuously decreasing, and melting subsidence damage to existing warm frozen soil (WFS) embankments is constantly occurring, thus...
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ftdoajarticles:oai:doaj.org/article:c2c336837d8c4a099524a550ebd8b23b 2024-09-15T18:11:39+00:00 Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments Gaochen Sun Long Li Yufan Huo Zonghui Fang Gao Lv Tao Chen Zhengzhong Wang Meimei Song Guanqi Lan Ziqiang Tang 2024-06-01T00:00:00Z https://doi.org/10.3390/buildings14071892 https://doaj.org/article/c2c336837d8c4a099524a550ebd8b23b EN eng MDPI AG https://www.mdpi.com/2075-5309/14/7/1892 https://doaj.org/toc/2075-5309 doi:10.3390/buildings14071892 2075-5309 https://doaj.org/article/c2c336837d8c4a099524a550ebd8b23b Buildings, Vol 14, Iss 7, p 1892 (2024) existing warm frozen soil (WFS) embankment melt subsidence disaster inclined soil–cement mixing continuous wall (ISCW) numerical simulation melt settlement Building construction TH1-9745 article 2024 ftdoajarticles https://doi.org/10.3390/buildings14071892 2024-08-05T17:48:50Z Affected by climate warming and anthropogenic disturbances, the thermo-mechanical stability of warm and ice-rich frozen ground along the Qinghai–Tibet Railway (QTR) is continuously decreasing, and melting subsidence damage to existing warm frozen soil (WFS) embankments is constantly occurring, thus seriously affecting the stability and safety of the existing WFS embankments. In this study, in order to solve the problems associated with the melting settlement of existing WFS embankments, a novel reinforcement technology for ground improvement, called an inclined soil–cement continuous mixing wall (ISCW), is proposed to reinforce embankments in warm and ice-rich permafrost regions. A numerical simulation of a finite element model was conducted to study the freeze–thaw process and evaluate the stabilization effects of the ISCW on an existing WFS embankment of the QTR. The numerical investigations revealed that the ISCW can efficiently reduce the melt settlement in the existing WFS embankment, as well as increase the bearing capacity of the existing WFS embankment, making it favorable for improving the bearing ability of composite foundations. The present investigation breaks through the traditional ideas of “active cooling” and “passive protection” and provides valuable guidelines for the choice of engineering supporting techniques to stabilize existing WFS embankments along the QTR. Article in Journal/Newspaper Ice permafrost Directory of Open Access Journals: DOAJ Articles Buildings 14 7 1892 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
existing warm frozen soil (WFS) embankment melt subsidence disaster inclined soil–cement mixing continuous wall (ISCW) numerical simulation melt settlement Building construction TH1-9745 |
spellingShingle |
existing warm frozen soil (WFS) embankment melt subsidence disaster inclined soil–cement mixing continuous wall (ISCW) numerical simulation melt settlement Building construction TH1-9745 Gaochen Sun Long Li Yufan Huo Zonghui Fang Gao Lv Tao Chen Zhengzhong Wang Meimei Song Guanqi Lan Ziqiang Tang Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
topic_facet |
existing warm frozen soil (WFS) embankment melt subsidence disaster inclined soil–cement mixing continuous wall (ISCW) numerical simulation melt settlement Building construction TH1-9745 |
description |
Affected by climate warming and anthropogenic disturbances, the thermo-mechanical stability of warm and ice-rich frozen ground along the Qinghai–Tibet Railway (QTR) is continuously decreasing, and melting subsidence damage to existing warm frozen soil (WFS) embankments is constantly occurring, thus seriously affecting the stability and safety of the existing WFS embankments. In this study, in order to solve the problems associated with the melting settlement of existing WFS embankments, a novel reinforcement technology for ground improvement, called an inclined soil–cement continuous mixing wall (ISCW), is proposed to reinforce embankments in warm and ice-rich permafrost regions. A numerical simulation of a finite element model was conducted to study the freeze–thaw process and evaluate the stabilization effects of the ISCW on an existing WFS embankment of the QTR. The numerical investigations revealed that the ISCW can efficiently reduce the melt settlement in the existing WFS embankment, as well as increase the bearing capacity of the existing WFS embankment, making it favorable for improving the bearing ability of composite foundations. The present investigation breaks through the traditional ideas of “active cooling” and “passive protection” and provides valuable guidelines for the choice of engineering supporting techniques to stabilize existing WFS embankments along the QTR. |
format |
Article in Journal/Newspaper |
author |
Gaochen Sun Long Li Yufan Huo Zonghui Fang Gao Lv Tao Chen Zhengzhong Wang Meimei Song Guanqi Lan Ziqiang Tang |
author_facet |
Gaochen Sun Long Li Yufan Huo Zonghui Fang Gao Lv Tao Chen Zhengzhong Wang Meimei Song Guanqi Lan Ziqiang Tang |
author_sort |
Gaochen Sun |
title |
Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
title_short |
Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
title_full |
Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
title_fullStr |
Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
title_full_unstemmed |
Stabilization Effects of Inclined Soil–Cement Continuous Mixing Walls for Existing Warm Frozen Soil Embankments |
title_sort |
stabilization effects of inclined soil–cement continuous mixing walls for existing warm frozen soil embankments |
publisher |
MDPI AG |
publishDate |
2024 |
url |
https://doi.org/10.3390/buildings14071892 https://doaj.org/article/c2c336837d8c4a099524a550ebd8b23b |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Buildings, Vol 14, Iss 7, p 1892 (2024) |
op_relation |
https://www.mdpi.com/2075-5309/14/7/1892 https://doaj.org/toc/2075-5309 doi:10.3390/buildings14071892 2075-5309 https://doaj.org/article/c2c336837d8c4a099524a550ebd8b23b |
op_doi |
https://doi.org/10.3390/buildings14071892 |
container_title |
Buildings |
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14 |
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7 |
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1892 |
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1810449232346218496 |