Creep characteristics of muddy siltstone and its engineering application on cross-river tunnel stability

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成果类型：

期刊论文

作者：

Deng, Huijuan;Cao, Ping;Wang, Dongxing;Lin, Qibin;Cao, Rihong;...

通讯作者：

Lin, QB;Wang, DX

作者机构：

[Lin, QB; Deng, Huijuan; Lin, Qibin] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.

[Wang, Dongxing; Long, Hui; Deng, Huijuan; Wang, DX] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.

[Cao, Rihong; Deng, Huijuan; Cao, Ping] Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China.

[Wang, Dongxing; Wang, DX] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China.

通讯机构：

[Lin, QB ; Wang, DX ] U

Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.

Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.

Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China.

语种：

英文

关键词：

Creep characteristics;Cross-river tunnel;Long-term stability;Muddy siltstone;Multi field coupling simulation;Nonlinear damage creep model

期刊：

Scientific Reports

ISSN：

2045-2322

年：

2025

卷：

期：

页码：

14083

DOI：

10.1038/s41598-025-98896-y

基金类别：

Science Fund for Distinguished Young Scholars of Hubei Province [2025JJ20049]; Youth Science Fund (A-class) of Hunan Natural Science Foundation [2024AFA051]; Natural Science Fund for Distinguished Young Scholars of Hubei Province [52404087]; National Natural Science Foundation of China [2023JJ30666, 2024JJ7441, 2024JJ6383]; Natural Science Foundation of Hunan Province [23B0444]; Outstanding Youth Project of Hunan Provincial Education Department

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

Muddy siltstone combines the characteristics of both sandstone and mudstone, and is prone to instability over time. To study the long-term stability of tunnel engineering in this stratum, this article taking the cross-river metro tunnel section as the engineering background, and conducting research on the stress and deformation of the tunnel surrounding rock. Firstly, uniaxial compression creep tests were conducted on muddy siltstone to study the creep deformation law under graded loading. Secondly, a nonlinear damage creep model was established based on the Burgers model, and the experimental...

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Creep characteristics of muddy siltstone and its engineering application on cross-river tunnel stability

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