Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data
Carrying out underground excavation work with retaining pile supports adjacent to a running railway is a risky and cautious job. To evaluate the safety and practicability of underground excavation, a three-dimensional finite element program was developed and used in this study to simulate and analyz...
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/1/397 |
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| author | Yu-Lin Lee Wen-Kuei Hsu Pei-Wen Hsieh Chi-Huang Ma Ming-Yi Lin Chi-Min Lee |
| author_facet | Yu-Lin Lee Wen-Kuei Hsu Pei-Wen Hsieh Chi-Huang Ma Ming-Yi Lin Chi-Min Lee |
| author_sort | Yu-Lin Lee |
| collection | DOAJ |
| description | Carrying out underground excavation work with retaining pile supports adjacent to a running railway is a risky and cautious job. To evaluate the safety and practicability of underground excavation, a three-dimensional finite element program was developed and used in this study to simulate and analyze the mechanical behavior of the gravel layer in response to excavation to serve as the design for retaining piles as supports. Monitoring instruments (such as inclinometers and subsidence observation points on railway track surfaces) were installed during construction to provide immediate monitoring of the excavation area and information for safety assessments. The calculation process in the numerical analysis included the execution of programs such as pre-processing, central calculation, and post-processing, as well as the simulation of construction steps, such as the initial stress of gravel layer, railway vehicle load, layered excavation, and support installation. By comparing the results of 3D finite element analysis with monitoring data, it was found that the construction method of excavating the gravel layer near the adjacent railway and supporting it with retaining piles provides a reliable engineering technology. The results of the comparative analysis were all within a safe range and showed a consistent trend. |
| first_indexed | 2024-03-11T10:07:46Z |
| format | Article |
| id | doaj.art-5211878e0a47466db1610d79a032ef2a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T10:07:46Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5211878e0a47466db1610d79a032ef2a2023-11-16T14:56:30ZengMDPI AGApplied Sciences2076-34172022-12-0113139710.3390/app13010397Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring DataYu-Lin Lee0Wen-Kuei Hsu1Pei-Wen Hsieh2Chi-Huang Ma3Ming-Yi Lin4Chi-Min Lee5Department of Civil Engineering, Chung Hua University, Hsinchu 30012, TaiwanDepartment of Civil and Disaster Prevention Engineering, National United University, Miaoli 36003, TaiwanDepartment of Civil Engineering, Chung Hua University, Hsinchu 30012, TaiwanDepartment of Civil Engineering, Chung Hua University, Hsinchu 30012, TaiwanEastern Region Engineering Office, Railway Bureau, Ministry of Transportation and Communications, New Taipei City 22041, TaiwanDepartment of Civil Engineering, National Central University, Taoyuan City 32001, TaiwanCarrying out underground excavation work with retaining pile supports adjacent to a running railway is a risky and cautious job. To evaluate the safety and practicability of underground excavation, a three-dimensional finite element program was developed and used in this study to simulate and analyze the mechanical behavior of the gravel layer in response to excavation to serve as the design for retaining piles as supports. Monitoring instruments (such as inclinometers and subsidence observation points on railway track surfaces) were installed during construction to provide immediate monitoring of the excavation area and information for safety assessments. The calculation process in the numerical analysis included the execution of programs such as pre-processing, central calculation, and post-processing, as well as the simulation of construction steps, such as the initial stress of gravel layer, railway vehicle load, layered excavation, and support installation. By comparing the results of 3D finite element analysis with monitoring data, it was found that the construction method of excavating the gravel layer near the adjacent railway and supporting it with retaining piles provides a reliable engineering technology. The results of the comparative analysis were all within a safe range and showed a consistent trend.https://www.mdpi.com/2076-3417/13/1/397retaining piles3D finite element analysismonitoring datagravel formationadjacent railwaymechanical behavior |
| spellingShingle | Yu-Lin Lee Wen-Kuei Hsu Pei-Wen Hsieh Chi-Huang Ma Ming-Yi Lin Chi-Min Lee Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data Applied Sciences retaining piles 3D finite element analysis monitoring data gravel formation adjacent railway mechanical behavior |
| title | Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data |
| title_full | Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data |
| title_fullStr | Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data |
| title_full_unstemmed | Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data |
| title_short | Mechanical Behavior Analysis of Excavation and Retaining Piles in Gravel Formation along Adjacent Railways: A Comparative 3D FEM Study with Monitoring Data |
| title_sort | mechanical behavior analysis of excavation and retaining piles in gravel formation along adjacent railways a comparative 3d fem study with monitoring data |
| topic | retaining piles 3D finite element analysis monitoring data gravel formation adjacent railway mechanical behavior |
| url | https://www.mdpi.com/2076-3417/13/1/397 |
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