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Comparative analysis of support methods for TBM entrance walls | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 5، دوره 59، شماره 3، آذر 2025، صفحه 229-235 اصل مقاله (909.1 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2025.369905.595132 | ||
| نویسندگان | ||
| Mahdi Mohammadi1؛ Rashid Hajivand Dastgerdi* 2؛ Behzad shokati3؛ Adriko Norman Burua4؛ Dariush mohammadi1 | ||
| 1Faculty of Mining Engineering, Amirkabir University of Technology, Tehran, Iran. | ||
| 2Faculty of Geo-Data Science, Geodesy, and Environmental Engineering, AGH UST, Krakow, Poland. | ||
| 3Faculty of Civil Engineering, Yildiz Technical University, Istanbul, Turkey. | ||
| 4Faculty of Civil Engineering, Southwest Jiaotong University, Sichuan, China. | ||
| چکیده | ||
| The excavation and construction of underground stations are essential elements of modern urban infrastructure. This research article delves into the critical aspect of station construction within underground transportation systems, focusing specifically on stabilizing entrance walls of a metro station, particularly for Tunnel Boring Machine (TBM) entrances. The study conducts a comparative analysis between two support systems: the plastic concrete piles method and its combination with soil nailing, evaluating their efficacy in the context of TBM entrances. Employing both 2D and 3D Finite Element Modelling (FEM), the research investigates various soil constitutive models, including the Hardening Soil and Hardening Soil with Small Strain models. The findings emphasize the combined approach of utilizing plastic concrete piles with soil nailing as being more advantageous, demonstrating superior displacement control. Additionally, the comparison of modelling approaches indicates that the utilization of 3D modelling with the Hardening Soil with Small Strain model is recommended for numerical analysis of deep excavations near sensitive properties due to its ability to predict realistic ground movement distributions. | ||
| کلیدواژه‌ها | ||
| Excavation؛ Finite element method؛ Support techniques؛ Soil constitutive models | ||
| مراجع | ||
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[1] Xuan, F., Xia, X., & Wang, J. (2009). The application of a small strain model in excavations. Journal of Shanghai Jiaotong University (Science), 14, 418–422.
[2] Lim, A., Ou, C.-Y., & Hsieh, P.-G. (2010). Evaluation of clay constitutive models for analysis of deep excavation under undrained conditions. Journal of GeoEngineering, 5(1), 9–20.
[3] Wei-dong, W. (2010). Selection of soil constitutive models for numerical analysis of deep excavations in close proximity to sensitive properties. Rock and Soil Mechanics.
[4] Farzi, M., Pakbaz, M. S., & Aminpour, H. A. (2018). Selection of support system for urban deep excavations: A case study in Ahvaz geology. Case Studies in Construction Materials, 8, 131-138. https://doi.org/10.1016/j.cscm.2018.01.004
[5] Hassan, A. M. (2019). Studying the behaviour of deep excavation adjacent to old buildings using Plaxis 3D. Journal of the Egyptian Society of Engineers, 58(1), 15–20.
[6] Nematollahi, M., & Dias, D. (2022). Twin earth pressure balance tunnelling – monitoring and numerical study of an urban case. Proceedings of the Institution of Civil Engineers - Geotechnical Engineering, 1-13. https://doi.org/10.1680/jgeen.21.00165
[7] Reiffsteck, P. (2002). Nouvelles technologies d’essai en mecanique des sols-Etat de l’art. In PARAM 2002-SYMPOSIUM INTERNATIONAL IDENTIFICATION ET DETERMINATION DES PARAMETRES DES SOLS ET DES ROCHES POUR LES CALCULS GEOTECHNIQUES, PARIS, 2-3 SEPTEMBRE 2002.
[8] Chang, G. M. (2008). Optimization design of composite soil-nailing in loess excavation. In Geotechnical Aspects of Underground Construction in Soft Ground. CRC Press, pp. 149–156.
[9] Lazarte, C. A., et al. (2003). Geotechnical engineering circular No. 7 soil nail walls US Department of Transportation Publication No. FHWA0-IF-03-017 Federal Highway Administration, FHWA. Washington, DC, USA. | ||
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