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Journal of Mining and Environment، جلد ۱۳، شماره ۴، صفحات ۹۷۳-۹۸۷
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عنوان انگلیسی Investigating Effect of Tunnel Size, Rock Mass Conditions, and In-Situ Stresses on Stability of Tunnels
چکیده انگلیسی مقاله The major factors affecting tunnel stability include the ground conditions, in-situ stresses, and project-related features. In this research work, critical strain, stress reduction factor (SRF), and capacity diagrams are used for tunnel stability analysis. For this purpose, eighteen tunnel sections are modelled using the FLAC2D software. The rock mass properties for the modelling are obtained using the RocLab software. The results obtained show that tunnel deformations in most cases are within the safety limit. Meanwhile, it is observed that the rock mass quality, tunnel size, and in-situ stresses contribute to the deformation. The resulting deformations also affect SRF. SRF depends on the in-situ stresses, rock mass quality, and excavation sequence. The capacity diagrams show that the liner experience stress-induced failures due to stress concentration at the tunnel corners. This study concludes that tunnel stability analysis must include an integrated approach that considers the rock quality, in-situ stress, excavation dimensions, and deformations.
کلیدواژه‌های انگلیسی مقاله Critical Strain, stress reduction factor, Capacity diagram, tunnel shape and size, in-situ stresses
نویسندگان مقاله Hafeezur Rehman |
Department of Mining Engineering, Faculty of Engineering, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Quetta, Pakistan

Ahmad Shah |
Department of Mining Engineering, Faculty of Engineering, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Quetta 87300, Pakistan

Mohd Hazizan Bin Mohd Hashim |
School of Materials and Mineral Resources Engineering, University Sains Malaysia, Engineering Campus, Nibong Tebal Penang, Malaysia

Naseer Muhammad Khan |
Department of Mining Engineering, Faculty of Engineering, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Quetta, Pakistan

Wahid Ali |
Department of Mining Engineering, Faculty of Engineering, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Quetta, Pakistan

Kausar Sultan Shah |
Department of Mining Engineering, Karakoram International University, Gilgit-Baltistan, Pakistan

Muhammad Junaid |
Department of Mining Engineering, Karakoram International University, Gilgit-Baltistan, Pakistan

Rafi Ullah |
Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia

Muhammad Bilal Adeel |
Department of Transportation and Geotechnical Engineering, National University of Science and Technology, Risalpur Campus, Pakistan

نشانی اینترنتی https://jme.shahroodut.ac.ir/article_2570_d040ca0ec3fb75705ed0f83ca7e90881.pdf
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