Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault
To reveal the failure mechanism of tunnel structure under active fault movement, based on the pseudostatic elastoplastic finite element method, the failure modes of the tunnel lining are studied under different movement ratios of strike-slip faults and thrust faults with 45° dip angle by using numer...
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Hindawi Limited
2021-01-01
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Series: | Advances in Civil Engineering |
Online Access: | http://dx.doi.org/10.1155/2021/9997924 |
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doaj-2541c6f80fb3444e8ab5bdc4781fd6c92021-05-31T00:33:57ZengHindawi LimitedAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/9997924Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active FaultGuotao Yang0Sujian Ma1Liang Zhang2Xinrong Tan3Rui Tang4Yang Liu5China State Railway Group Co., Ltd.Department of Civil EngineeringDepartment of Civil EngineeringChina Railway Eryuan Engineering Group Co., Ltd.Sichuan Highway Planning, Survey, Design and Research Institute Ltd.Zhongke (Hunan) Advanced Rail Transit Research Institute Co., Ltd.To reveal the failure mechanism of tunnel structure under active fault movement, based on the pseudostatic elastoplastic finite element method, the failure modes of the tunnel lining are studied under different movement ratios of strike-slip faults and thrust faults with 45° dip angle by using numerical simulation. The results show that the range of significant lining failure section can be determined according to any direction of the coupling fault movement decomposition direction, and the damage effect is determined by the overall movement amount of the coupling fault. The significant damage area of the lining under the action of the coupling fault is the same as the area of deformation, which mainly manifests as tensile failure. Compressive failure occurs in the boundary area between the fracture zone and the hanging wall and foot wall. The plastic strain is the largest in the area where the arch waist and the arch bottom intersect. The development of tunnel lining plastic zone under coupling fault is from arch top and arch bottom to both sides of the arch waist. The development of the plastic zone under active fault is mainly determined by the form of fault with a large ratio. The research results can provide a reference for the design and safety evaluation of tunnel crossing active faults.http://dx.doi.org/10.1155/2021/9997924 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guotao Yang Sujian Ma Liang Zhang Xinrong Tan Rui Tang Yang Liu |
spellingShingle |
Guotao Yang Sujian Ma Liang Zhang Xinrong Tan Rui Tang Yang Liu Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault Advances in Civil Engineering |
author_facet |
Guotao Yang Sujian Ma Liang Zhang Xinrong Tan Rui Tang Yang Liu |
author_sort |
Guotao Yang |
title |
Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault |
title_short |
Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault |
title_full |
Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault |
title_fullStr |
Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault |
title_full_unstemmed |
Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault |
title_sort |
analysis of damage mechanism of tunnel lining structure under the coupling action of active fault |
publisher |
Hindawi Limited |
series |
Advances in Civil Engineering |
issn |
1687-8094 |
publishDate |
2021-01-01 |
description |
To reveal the failure mechanism of tunnel structure under active fault movement, based on the pseudostatic elastoplastic finite element method, the failure modes of the tunnel lining are studied under different movement ratios of strike-slip faults and thrust faults with 45° dip angle by using numerical simulation. The results show that the range of significant lining failure section can be determined according to any direction of the coupling fault movement decomposition direction, and the damage effect is determined by the overall movement amount of the coupling fault. The significant damage area of the lining under the action of the coupling fault is the same as the area of deformation, which mainly manifests as tensile failure. Compressive failure occurs in the boundary area between the fracture zone and the hanging wall and foot wall. The plastic strain is the largest in the area where the arch waist and the arch bottom intersect. The development of tunnel lining plastic zone under coupling fault is from arch top and arch bottom to both sides of the arch waist. The development of the plastic zone under active fault is mainly determined by the form of fault with a large ratio. The research results can provide a reference for the design and safety evaluation of tunnel crossing active faults. |
url |
http://dx.doi.org/10.1155/2021/9997924 |
work_keys_str_mv |
AT guotaoyang analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault AT sujianma analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault AT liangzhang analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault AT xinrongtan analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault AT ruitang analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault AT yangliu analysisofdamagemechanismoftunnelliningstructureunderthecouplingactionofactivefault |
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