Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method
With the rapid development of urban rail transit, the impact of shield tunneling on existing pipelines is increasing. To protect pipeline safety, this research focuses on the complex pipelines in the Shaluo shield tunneling section, utilizing FLAC3D numerical simulation software to investigate the d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/2075-5309/15/13/2253 |
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| author | Hanxi Yang Wenjia Wu Xiong Wu Jiangbo Xu Jisheng Li Quan Qi Wen Sun |
| author_facet | Hanxi Yang Wenjia Wu Xiong Wu Jiangbo Xu Jisheng Li Quan Qi Wen Sun |
| author_sort | Hanxi Yang |
| collection | DOAJ |
| description | With the rapid development of urban rail transit, the impact of shield tunneling on existing pipelines is increasing. To protect pipeline safety, this research focuses on the complex pipelines in the Shaluo shield tunneling section, utilizing FLAC3D numerical simulation software to investigate the deformation characteristics of cast iron pipelines during shield construction. Additionally, it quantifies the influence of pipeline materials on deformation and establishes the pipeline safety risk grading system. Safety assessment of pipelines based on the research. The research indicates that (1) The deformation difference between the tops of the pressure and pressureless pipeline is less than 1 mm, suggesting that pipeline deformation is minimally influenced by pressure. The deformation is the largest at the entrance and gradually decreases along the direction of excavation, indicating that the deformation has an obvious hysteresis effect. (2) The threefold variation in maximum deformation among pipelines of different materials during shield tunneling indicates the high sensitivity of pipeline material properties to shield construction processes. (3) By analyzing and discussing the literature and local norms, the deformation value of the pipeline is taken as the evaluation index. And the pipeline assessment system is established. (4) Cast iron pipelines at the start of the shield have the highest safety, and concrete pipelines at the beginning of the shield are the lowest. |
| format | Article |
| id | doaj-art-0245309d0e04434f86fc0e48e50407e3 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-0245309d0e04434f86fc0e48e50407e32025-08-20T03:28:33ZengMDPI AGBuildings2075-53092025-06-011513225310.3390/buildings15132253Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling MethodHanxi Yang0Wenjia Wu1Xiong Wu2Jiangbo Xu3Jisheng Li4Quan Qi5Wen Sun6Department of Economics and Management School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaDepartment of Highway School, Chang’an University, Xi’an 710064, ChinaWith the rapid development of urban rail transit, the impact of shield tunneling on existing pipelines is increasing. To protect pipeline safety, this research focuses on the complex pipelines in the Shaluo shield tunneling section, utilizing FLAC3D numerical simulation software to investigate the deformation characteristics of cast iron pipelines during shield construction. Additionally, it quantifies the influence of pipeline materials on deformation and establishes the pipeline safety risk grading system. Safety assessment of pipelines based on the research. The research indicates that (1) The deformation difference between the tops of the pressure and pressureless pipeline is less than 1 mm, suggesting that pipeline deformation is minimally influenced by pressure. The deformation is the largest at the entrance and gradually decreases along the direction of excavation, indicating that the deformation has an obvious hysteresis effect. (2) The threefold variation in maximum deformation among pipelines of different materials during shield tunneling indicates the high sensitivity of pipeline material properties to shield construction processes. (3) By analyzing and discussing the literature and local norms, the deformation value of the pipeline is taken as the evaluation index. And the pipeline assessment system is established. (4) Cast iron pipelines at the start of the shield have the highest safety, and concrete pipelines at the beginning of the shield are the lowest.https://www.mdpi.com/2075-5309/15/13/2253numerical simulationshield tunneling-induced disturbancepipelinesoil-structure interactiongeotechnical risk assessment |
| spellingShingle | Hanxi Yang Wenjia Wu Xiong Wu Jiangbo Xu Jisheng Li Quan Qi Wen Sun Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method Buildings numerical simulation shield tunneling-induced disturbance pipeline soil-structure interaction geotechnical risk assessment |
| title | Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method |
| title_full | Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method |
| title_fullStr | Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method |
| title_full_unstemmed | Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method |
| title_short | Analysis of Disturbance and Safety Risk Assessment of Shallow-Buried Pressure Pipelines Utilizing the Shield Tunneling Method |
| title_sort | analysis of disturbance and safety risk assessment of shallow buried pressure pipelines utilizing the shield tunneling method |
| topic | numerical simulation shield tunneling-induced disturbance pipeline soil-structure interaction geotechnical risk assessment |
| url | https://www.mdpi.com/2075-5309/15/13/2253 |
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