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Journal of Mining and Environment، جلد ۱۱، شماره ۳، صفحات ۸۰۹-۸۲۳
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عنوان انگلیسی A 3D Finite-Difference Analysis of Interaction between a Newly-Driven Large Tunnel with Twin Tunnels in Urban Areas
چکیده انگلیسی مقاله Evaluation of the interaction between a new and the existing underground structures is one of the important problems in urban tunneling. In this work, using FLAC3D, four numerical models of single- and twin-tube tunnels in urban areas are developed, where the horizontal distance between the single- and twin-tube tunnels are varied. The aim is to analyze the effects of the horizontal distances, considering various criteria such as the deformation of linings, the forces and moments exerted on the twin-tube tunnels and their safety factors, the subsidence that occur on the surface and the nearby buildings, the stability of the single-tube tunnel, and the stability of the pillar lying between the single- and twin-tube tunnels. Considering the above-mentioned criteria, the results obtained indicate that the interaction between the single- and twin-tube tunnels is virtually negligible in the distance more than three times the single-tube tunnel diameter. Also the stability of the pillar lying between the tunnels makes the distance to be chosen at least 1.5 times the single-tube tunnel diameter.
کلیدواژه‌های انگلیسی مقاله 3D Numerical Modeling, Interaction between tunnels, Flac3D, Soft ground tunneling
نویسندگان مقاله S. Akbari |
Shahrood University of Technology, Faculty of Mining, Geophysics and Petroleum Engineering, Shahrood, Iran

Sh. Zare |
Shahrood University of Technology, Faculty of Mining, Geophysics and Petroleum Engineering, Shahrood, Iran

H. Chakeri |
Sahand University of Technology, Dept. of Mining Engineering, Tebriz, Iran

H. Mirzaei Nasir Abad |
Sahand University of Technology, Dept. of Mining Engineering, Tebriz, Iran

نشانی اینترنتی http://jme.shahroodut.ac.ir/article_1783_6920bc04e90ead5f6ff769d7f6227b0d.pdf
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