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Journal of Mining and Environment، جلد ۱۵، شماره ۴، صفحات ۱۲۹۱-۱۳۰۸
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عنوان انگلیسی Stability Analysis of set-up Room of a deep Longwall Panel of Lndia using 3D Numerical Modelling Technique
چکیده انگلیسی مقاله The installation gallery/set-up room of a longwall panel is driven for installation of the longwall face machineries to start the extraction of coal from the longwall panel. The width of the installation gallery is 8 to 9 m. This gallery needs to be stabilized till the face machineries to be deployed from the driving of the room as it required to stand more than 8 to 10 months and develop the high stress concentration, roof-to-floor convergence and yield zone in the roof and sides. Hence, in this study, a deep longwall mine of India is considered to analyze the behavior of set-up room. For this, a total of twelve 3D numerical models are developed and analyzed considering Mohr’s-Coulomb failure criterion. Three panels located at 417, 462, 528 m having three different widths (8, 10 and 12 m) of set-up rooms are examined. The width of the set-up room is taken based on the length of the shield support. The results in terms of vertical stress distribution, vertical displacement, roof-to-floor convergence, plastic strain and yield zone distribution are presented.
کلیدواژه‌های انگلیسی مقاله Longwall, Set-up room, Stress concentration, Roof to floor convergence, Yield zone
نویسندگان مقاله Avula Rajashekar Yadav |
Mining Engineering Department, Indian Institute of Technology Kharagpur, West Bengal, India

Sreenivasa Rao Islavath |
Mining Engineering Department, Indian Institute of Technology Kharagpur, West Bengal, India

Srikanth Katkuri |
Adriyala Longwall Project, Singareni Collieries Company Limited, Telangana, India

نشانی اینترنتی https://jme.shahroodut.ac.ir/article_3159_579a0bc17af939329ee75b24034b490b.pdf
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